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Set-up

Bonnie+ was run on a large RAID6 volume:

 # df -H /raid
 Filesystem             Size   Used  Avail Use% Mounted on
 /dev/sdb                11T   5.3M    11T   1% /raid

Single thread run was performed by

 bonnie++ -s 32768 -d /raid/bonnie -u 1000

Multi-thread run (one for each core) by

 bonnie++ -p 8 -u 1000
 bonnie++ -y -s 32768 -d /raid/bonnie -u 1000 &
 bonnie++ -y -s 32768 -d /raid/bonnie -u 1000 &
 bonnie++ -y -s 32768 -d /raid/bonnie -u 1000 &
 bonnie++ -y -s 32768 -d /raid/bonnie -u 1000 &
 bonnie++ -y -s 32768 -d /raid/bonnie -u 1000 &
 bonnie++ -y -s 32768 -d /raid/bonnie -u 1000 &
 bonnie++ -y -s 32768 -d /raid/bonnie -u 1000 &
 bonnie++ -y -s 32768 -d /raid/bonnie -u 1000 &

Results

Single thread:
 store03,32G,76714,99,358710,47,160723,34,75290,98,598148,48,498.6,0,16,19439,98,+++++,+++,15815,83,19178,97,+++++,+++,14019,81

8 threads:

 store03,32G,28434,38,36181,10,10790,4,9433,12,54228,4,124.7,0,16,1956,27,+++++,+++,1668,29,1825,26,+++++,+++,1469,25
 store03,32G,28244,38,36150,10,10861,4,9427,12,53307,4,127.5,0,16,2012,29,+++++,+++,1664,29,1957,23,+++++,+++,1473,26
 store03,32G,28218,38,36216,10,10916,4,9478,12,53258,4,127.5,0,16,1972,28,+++++,+++,1661,28,1957,25,+++++,+++,1446,27
 store03,32G,27791,39,36164,10,10836,4,9442,12,53568,4,128.4,0,16,1928,28,+++++,+++,1680,29,1833,27,+++++,+++,1437,27
 store03,32G,28356,38,37224,10,10840,4,9490,12,53248,4,126.9,0,16,1947,27,+++++,+++,1657,30,1976,23,+++++,+++,1449,28
 store03,32G,28263,38,36194,10,10826,4,9455,12,54726,4,122.8,0,16,1934,28,+++++,+++,1677,28,2048,26,+++++,+++,1431,28
 store03,32G,28451,38,36180,10,10950,4,9543,12,54921,4,122.8,0,16,1988,29,+++++,+++,1659,26,1836,27,+++++,+++,1426,27
 store03,32G,28442,38,36152,10,11041,4,9460,12,55621,5,120.6,0,16,1947,30,+++++,+++,1673,26,1855,27,+++++,+++,1433,28
Topic revision: r1 - 23 Nov 2007, Carsten
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