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// nForce4 (CK804) и NCQ решение проблемы

Включаем

В продолжении ранее поднятой темы

Покумекав по форумам нашел информацию, что на моём чипсете NCQ должен включаться параметром adma=1 модулю sata_nv, в первую очередь смутило то, что спросив modinfo sata_nv, мне было сказано, что опция включена по дефолту. Но мы обычно не верим, и проверяем.

Сделал файлик, /etc/modprobe.d/sata_nv со следующим содержимым:

options sata_nv adma=1

перезагрузился (ага… сначала попробывал на рабочей системе сделать rmmod -f sata_nv, попробуйте - понравится :)), смотрю dmesg…. 0/31…. пля…. не включилось. Почему? Подумал, походил, полежал… Гм… а ведь у меня используется initrd, а ведь может такое быть, что модуль там подгружается, а про мои параметры никак не догадывается? Открываю на редактирование файл /etc/mkinitcpio.conf, к переменной FILES добаляю /etc/modprobe.d/sata_nv, у меня получилось такое:

FILES="/etc/modprobe.d/sata_nv"

Перестраиваю initrd:

/sbin/mkinitcpio -p kernel26

команда верна для ArchLinux, в другом дистрибутиве может отличаться незначительно.

После отстройки initrd, будет полезно проверить, что нужные файлы там появились:

cd /boot
gzip -dc kernel26.img | cpio -t | grep sata_nv

у меня дало такой результат:

/etc/modprobe.d/sata_nv
/lib/modules/2.6.28-ARCH/kernel/drivers/ata/sata_nv.ko

перезагружаемся, и смотрим вывод такой команды:

dmesg | grep NCQ

у меня она дала такой результат:

ata3.00: 1465149168 sectors, multi 1: LBA48 NCQ (depth 31/32)

всё, завелось! :)

Тестируем

Ну вот, нужно же посмотреть на тесты. Решил прогнать тесты hdparm и bonnie++ на всех планировщиках IO с включенным и выключенным NCQ. Для подспорья написал три скриптика:

  • hdparm_test.sh
#!/bin/bash                                                                                                                                         
 
dev=/dev/sda                                                                                                                                        
 
rm -f hdparm.txt                                                                                                                                    
for i in 1 2 3 4 5                                                                                                                                  
do                                                                                                                                                  
    sync                                                                                                                                            
    hdparm -tT $dev >> hdparm.txt                                                                                                                   
done
  • bonnie_test.sh
#!/bin/bash                                                                                                                                         
 
bonnie++ -d ./ -u root -s 2000 -q -x 5 > bonnie.csv                                                                                                 
bon_csv2html < bonnie.csv > bonnie.html                                                                                                             
bon_csv2txt < bonnie.csv > bonnie.txt
  • start_test.sh
#!/bin/bash                                                                                                                                         
 
bon=sum_bonnie.txt                                                                                                                                  
hdp=sum_hdparm.txt                                                                                                                                  
 
rm -f $hdp                                                                                                                                          
rm -f $bon                                                                                                                                          
 
[ x"`dmesg | grep NCQ | grep 0/32`" = x"" ] && ncq="ncq" || ncq="noncq"                                                                             
 
echo "NCQ: $ncq"                                                                                                                                    
 
for sched in noop cfq anticipatory deadline                                                                                                         
do                                                                                                                                                  
    echo "Test for scheduler: $sched"                                                                                                               
 
    echo ${sched} > /sys/block/sda/queue/scheduler                                                                                                  
    mkdir ${sched}_${ncq} >/dev/null 2>&1                                                                                                           
    cd ${sched}_${ncq}                                                                                                                              
    ../hdparm_test.sh                                                                                                                               
    ../bonnie_test.sh                                                                                                                               
    cd ..                                                                                                                                           
 
    echo "-----------"   >> $hdp                                                                                                                    
    echo ${sched}_${ncq} >> $hdp                                                                                                                    
    echo "-----------"   >> $hdp                                                                                                                    
    cat ${sched}_${ncq}/hdparm.txt >> $hdp                                                                                                          
    echo >> $hdp                                                                                                                                    
 
    echo "-----------"   >> $bon                                                                                                                    
    echo ${sched}_${ncq} >> $bon                                                                                                                    
    echo "-----------"   >> $bon                                                                                                                    
    cat ${sched}_${ncq}/bonnie.txt >> $bon                                                                                                          
    echo >> $bon                                                                                                                                    
done

Не забыть сделать эти файлы запускаемыми:

chmod +x start_test.sh hdparm_test.sh bonnie_test.sh

Тесты запускаются командой ./start_test.sh, она дергает остальное.

Результаты на моём железе такие:

NCQ выключен

  • hdparm
-----------                                                                                                                                         
noop_noncq                                                                                                                                          
-----------                                                                                                                                         
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1602 MB in  2.00 seconds = 801.56 MB/sec                                                                                    
 Timing buffered disk reads:  232 MB in  3.02 seconds =  76.88 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1606 MB in  2.00 seconds = 803.25 MB/sec                                                                                    
 Timing buffered disk reads:  230 MB in  3.01 seconds =  76.44 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1608 MB in  2.00 seconds = 803.81 MB/sec                                                                                    
 Timing buffered disk reads:  228 MB in  3.01 seconds =  75.64 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1602 MB in  2.00 seconds = 801.55 MB/sec                                                                                    
 Timing buffered disk reads:  224 MB in  3.00 seconds =  74.63 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1618 MB in  2.01 seconds = 803.01 MB/sec                                                                                    
 Timing buffered disk reads:  218 MB in  3.01 seconds =  72.31 MB/sec                                                                               
                                                                                                                                                    
-----------                                                                                                                                         
cfq_noncq                                                                                                                                           
-----------                                                                                                                                         
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1384 MB in  2.00 seconds = 691.84 MB/sec                                                                                    
 Timing buffered disk reads:  218 MB in  3.00 seconds =  72.56 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1458 MB in  2.00 seconds = 729.39 MB/sec                                                                                    
 Timing buffered disk reads:  200 MB in  3.02 seconds =  66.20 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1348 MB in  2.00 seconds = 674.28 MB/sec                                                                                    
 Timing buffered disk reads:  224 MB in  3.00 seconds =  74.54 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1632 MB in  2.00 seconds = 816.43 MB/sec                                                                                    
 Timing buffered disk reads:  230 MB in  3.02 seconds =  76.15 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1548 MB in  2.00 seconds = 774.59 MB/sec                                                                                    
 Timing buffered disk reads:  232 MB in  3.02 seconds =  76.81 MB/sec

-----------                                                                                                                                         
anticipatory_noncq                                                                                                                                  
-----------                                                                                                                                         
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1368 MB in  2.00 seconds = 683.74 MB/sec                                                                                    
 Timing buffered disk reads:  224 MB in  3.02 seconds =  74.12 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1450 MB in  2.00 seconds = 724.83 MB/sec                                                                                    
 Timing buffered disk reads:  184 MB in  3.03 seconds =  60.81 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1568 MB in  2.00 seconds = 783.85 MB/sec                                                                                    
 Timing buffered disk reads:  232 MB in  3.02 seconds =  76.72 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1612 MB in  2.00 seconds = 805.95 MB/sec                                                                                    
 Timing buffered disk reads:  224 MB in  3.02 seconds =  74.21 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1486 MB in  2.00 seconds = 743.44 MB/sec                                                                                    
 Timing buffered disk reads:  212 MB in  3.02 seconds =  70.20 MB/sec                                                                               
                                                                                                                                                    
-----------                                                                                                                                         
deadline_noncq                                                                                                                                      
-----------                                                                                                                                         
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1644 MB in  2.00 seconds = 822.56 MB/sec                                                                                    
 Timing buffered disk reads:  224 MB in  3.05 seconds =  73.37 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1638 MB in  2.00 seconds = 819.22 MB/sec                                                                                    
 Timing buffered disk reads:  232 MB in  3.01 seconds =  77.00 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1600 MB in  2.00 seconds = 799.98 MB/sec                                                                                    
 Timing buffered disk reads:  228 MB in  3.00 seconds =  75.93 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1622 MB in  2.00 seconds = 811.11 MB/sec                                                                                    
 Timing buffered disk reads:  226 MB in  3.01 seconds =  75.07 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1408 MB in  2.00 seconds = 704.00 MB/sec                                                                                    
 Timing buffered disk reads:  202 MB in  3.00 seconds =  67.31 MB/sec
  • bonnie++
-----------                                                                                                                                         
noop_noncq                                                                                                                                          
-----------                                                                                                                                         
Version  1.03b      ------Sequential Output------ --Sequential Input- --Random-                                                                     
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--                                                                     
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP                                                                     
gaz.hm        2000M 45499  87 54665  19 27385   5 33288  61 70614   6 191.8   0                                                                     
gaz.hm        2000M 45874  88 54671  19 27249   5 38750  70 70981   6 194.1   0                                                                     
gaz.hm        2000M 45551  88 52317  19 25239   5 38610  70 70986   7 198.7   0                                                                     
gaz.hm        2000M 45572  88 51048  19 24506   5 25502  46 70222   7 198.1   0                                                                     
gaz.hm        2000M 45252  87 53697  20 26225   5 41717  75 68254   6 195.9   0                                                                     
                    ------Sequential Create------ --------Random Create--------                                                                     
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--                                                                     
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
                                                                                                                                                    
-----------                                                                                                                                         
cfq_noncq                                                                                                                                           
-----------                                                                                                                                         
Version  1.03b      ------Sequential Output------ --Sequential Input- --Random-                                                                     
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--                                                                     
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP                                                                     
gaz.hm        2000M 47352  89 55923  18 29652   6 45797  86 71825   6 211.0   0                                                                     
gaz.hm        2000M 47456  89 55034  18 29343   6 44096  83 71698   6 212.7   0                                                                     
gaz.hm        2000M 46858  88 57128  18 29574   6 44274  83 70485   6 211.3   0                                                                     
gaz.hm        2000M 47217  89 45011  14 28700   6 44137  83 72244   6 210.8   0                                                                     
gaz.hm        2000M 45751  86 42176  13 28894   6 38222  72 54850   5 210.8   0                                                                     
                    ------Sequential Create------ --------Random Create--------                                                                     
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--                                                                     
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     

-----------                                                                                                                                         
anticipatory_noncq                                                                                                                                  
-----------                                                                                                                                         
Version  1.03b      ------Sequential Output------ --Sequential Input- --Random-                                                                     
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--                                                                     
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP                                                                     
gaz.hm        2000M 46465  89 54986  19 29968   7 43727  80 70364   7 197.9   0                                                                     
gaz.hm        2000M 47074  89 56252  19 29388   7 41524  76 65507   6 194.9   0                                                                     
gaz.hm        2000M 44377  85 53607  19 29377   7 41594  77 70254   6 195.0   0                                                                     
gaz.hm        2000M 46743  89 49154  17 29652   7 42644  78 70767   6 199.3   0                                                                     
gaz.hm        2000M 46882  89 53358  19 26812   6 43332  80 69654   6 199.0   0                                                                     
                    ------Sequential Create------ --------Random Create--------                                                                     
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--                                                                     
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
                                                                                                                                                    
-----------                                                                                                                                         
deadline_noncq                                                                                                                                      
-----------                                                                                                                                         
Version  1.03b      ------Sequential Output------ --Sequential Input- --Random-                                                                     
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--                                                                     
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP                                                                     
gaz.hm        2000M 47175  89 57395  17 26149   5 25466  46 65936   5 191.6   0                                                                     
gaz.hm        2000M 46779  88 56285  17 26605   5 41736  76 68591   6 192.3   0                                                                     
gaz.hm        2000M 47521  89 55864  18 26369   5 41663  76 70438   6 186.0   0                                                                     
gaz.hm        2000M 46316  87 47777  15 26262   5 40952  75 70995   6 174.0   0                                                                     
gaz.hm        2000M 45114  85 47622  15 24073   4 41062  75 70485   6 190.9   0                                                                     
                    ------Sequential Create------ --------Random Create--------                                                                     
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--                                                                     
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 31185  59 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 19135  36 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     

NCQ включен

  • hdparm
-----------                                                                                                                                         
noop_ncq                                                                                                                                            
-----------                                                                                                                                         
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   288 MB in  2.01 seconds = 143.35 MB/sec                                                                                     
 Timing buffered disk reads:  226 MB in  3.01 seconds =  75.15 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1484 MB in  2.00 seconds = 741.70 MB/sec                                                                                    
 Timing buffered disk reads:  220 MB in  3.02 seconds =  72.89 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1534 MB in  2.00 seconds = 767.28 MB/sec                                                                                    
 Timing buffered disk reads:  174 MB in  3.01 seconds =  57.77 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1528 MB in  2.00 seconds = 763.82 MB/sec                                                                                    
 Timing buffered disk reads:  232 MB in  3.02 seconds =  76.73 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1518 MB in  2.02 seconds = 750.93 MB/sec                                                                                    
 Timing buffered disk reads:  206 MB in  3.01 seconds =  68.38 MB/sec                                                                               
                                                                                                                                                    
-----------                                                                                                                                         
cfq_ncq                                                                                                                                             
-----------                                                                                                                                         
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1322 MB in  2.00 seconds = 660.90 MB/sec                                                                                    
 Timing buffered disk reads:  218 MB in  3.00 seconds =  72.65 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1468 MB in  2.00 seconds = 733.83 MB/sec                                                                                    
 Timing buffered disk reads:  198 MB in  3.00 seconds =  65.96 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1510 MB in  2.00 seconds = 755.44 MB/sec                                                                                    
 Timing buffered disk reads:  220 MB in  3.02 seconds =  72.91 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1508 MB in  2.00 seconds = 753.78 MB/sec                                                                                    
 Timing buffered disk reads:  232 MB in  3.01 seconds =  77.01 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1478 MB in  2.00 seconds = 738.26 MB/sec                                                                                    
 Timing buffered disk reads:  186 MB in  3.02 seconds =  61.50 MB/sec

-----------                                                                                                                                         
anticipatory_ncq                                                                                                                                    
-----------                                                                                                                                         
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1528 MB in  2.00 seconds = 763.81 MB/sec                                                                                    
 Timing buffered disk reads:  224 MB in  3.02 seconds =  74.24 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1438 MB in  2.00 seconds = 719.39 MB/sec                                                                                    
 Timing buffered disk reads:  212 MB in  3.02 seconds =  70.21 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1514 MB in  2.00 seconds = 757.00 MB/sec                                                                                    
 Timing buffered disk reads:  224 MB in  3.02 seconds =  74.13 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1482 MB in  2.00 seconds = 740.91 MB/sec                                                                                    
 Timing buffered disk reads:  232 MB in  3.01 seconds =  77.14 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1284 MB in  2.00 seconds = 641.90 MB/sec                                                                                    
 Timing buffered disk reads:  228 MB in  3.02 seconds =  75.41 MB/sec                                                                               
                                                                                                                                                    
-----------                                                                                                                                         
deadline_ncq                                                                                                                                        
-----------                                                                                                                                         
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1432 MB in  2.00 seconds = 715.97 MB/sec                                                                                    
 Timing buffered disk reads:  228 MB in  3.01 seconds =  75.66 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1570 MB in  2.00 seconds = 784.75 MB/sec                                                                                    
 Timing buffered disk reads:  228 MB in  3.00 seconds =  75.98 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1308 MB in  2.00 seconds = 654.31 MB/sec                                                                                    
 Timing buffered disk reads:  120 MB in  3.15 seconds =  38.16 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1542 MB in  2.00 seconds = 771.35 MB/sec                                                                                    
 Timing buffered disk reads:  222 MB in  3.00 seconds =  73.95 MB/sec                                                                               
                                                                                                                                                    
/dev/sda:                                                                                                                                           
 Timing cached reads:   1328 MB in  1.99 seconds = 665.72 MB/sec                                                                                    
 Timing buffered disk reads:   20 MB in  3.08 seconds =   6.48 MB/sec
  • bonnie++
-----------                                                                                                                                         
noop_ncq                                                                                                                                            
-----------                                                                                                                                         
Version  1.03e      ------Sequential Output------ --Sequential Input- --Random-                                                                     
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--                                                                     
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP                                                                     
gaz.hm        2000M 37518  72 54097  19 27447   5 30303  55 52362   4 164.0   0                                                                     
gaz.hm        2000M 40180  74 49659  11 22405   4 31407  58 45389   4 156.9   0                                                                     
gaz.hm        2000M 40613  74 54209  12 19132   3 36567  65 61005   5 144.9   0                                                                     
gaz.hm        2000M 44069  81 47902  11 20125   3 29454  54 48515   4 142.2   0                                                                     
gaz.hm        2000M 23720  43 50504  13 17069   3 31430  57 31109   2 146.0   0                                                                     
                    ------Sequential Create------ --------Random Create--------                                                                     
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--                                                                     
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 28799  43 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 15829  26 +++++ +++ +++++ +++ 24156  37 +++++ +++ +++++ +++                                                                     
gaz.hm           16 12681  20 +++++ +++ 17474  23 +++++ +++ +++++ +++ +++++ +++                                                                     
                                                                                                                                                    
-----------                                                                                                                                         
cfq_ncq                                                                                                                                             
-----------                                                                                                                                         
Version  1.03e      ------Sequential Output------ --Sequential Input- --Random-                                                                     
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--                                                                     
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP                                                                     
gaz.hm        2000M 42450  78 42854  13 26662   6 39393  73 65793   6 150.9   0                                                                     
gaz.hm        2000M 42654  77 46031  14 24295   5 39668  75 58370   5 154.5   0                                                                     
gaz.hm        2000M 41442  78 38572  10 26912   6 36976  69 59910   5 161.3   0                                                                     
gaz.hm        2000M 44573  81 49651  14 23958   5 29693  55 64527   5 158.1   0                                                                     
gaz.hm        2000M 43713  80 47279  14 26039   5 37661  69 67724   6 146.5   0                                                                     
                    ------Sequential Create------ --------Random Create--------                                                                     
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--                                                                     
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP                                                                     
gaz.hm           16 31474  54 +++++ +++ +++++ +++ 25014  42 +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
 
-----------                                                                                                                                         
anticipatory_ncq                                                                                                                                    
-----------                                                                                                                                         
Version  1.03e      ------Sequential Output------ --Sequential Input- --Random-                                                                     
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--                                                                     
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP                                                                     
gaz.hm        2000M 40004  74 40790  11 26775   4 34375  63 61752   5 157.4   0                                                                     
gaz.hm        2000M 45122  80 48317  13 27421   5 37972  67 66430   5 128.6   0                                                                     
gaz.hm        2000M 43501  79 48437  13 24244   4 36538  65 58879   4 150.7   0                                                                     
gaz.hm        2000M 38956  70 50263  14 25548   4 40434  71 68409   6 155.9   0                                                                     
gaz.hm        2000M 43571  78 41474  11 25242   4 33914  62 65156   5 133.1   0                                                                     
                    ------Sequential Create------ --------Random Create--------                                                                     
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--                                                                     
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
                                                                                                                                                    
-----------                                                                                                                                         
deadline_ncq                                                                                                                                        
-----------                                                                                                                                         
Version  1.03e      ------Sequential Output------ --Sequential Input- --Random-                                                                     
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--                                                                     
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP                                                                     
gaz.hm        2000M 43518  77 56975  14 21886   3 34833  60 66615   5 159.0   0                                                                     
gaz.hm        2000M 45614  81 53282  13 19252   3 36180  63 55898   4 149.8   0                                                                     
gaz.hm        2000M 45471  81 49740  13 23995   4 35857  64 55811   4 160.5   0                                                                     
gaz.hm        2000M 44620  82 54310  13 22732   4 37973  68 57754   5 148.6   0                                                                     
gaz.hm        2000M 46165  85 55918  15 19391   3 35256  61 58450   5 154.0   0                                                                     
                    ------Sequential Create------ --------Random Create--------                                                                     
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--                                                                     
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 30932  52 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     
gaz.hm           16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++                                                                     

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