HP IO Accelerator for BladeSystem c-Class Performance Tuning Manuel d'utilisateur télécharger pdf (Page 7)

System performance 7

$ fio --filename=/dev/fioa --direct=1 --rw=randwrite --bs=4k --size=5G

--numjobs=64 --runtime=10 --group_reporting --name=file1

These tests are also available as fio job input files, which can be requested from HP support

(http://www.hp.com/go/support).

The latest expected performance numbers for your card type can be found in the HP PCIe IO Accelerator for

ProLiant Servers Data Sheet (http://h20195.www2.hp.com/V2/GetPDF.aspx/4AA0-4235ENW.pdf

Your results should exceed those on the data sheet. The sample IOPS test uses a 4K block size and 64

threads. The sample bandwidth test uses 1MB block size and four threads. For multi-card runs, IOPS are

calculated by adding the per-card bandwidth/second together and dividing it by the block size. For sample

output from each of the tests and how to validate that your system is performing properly, see "Write

bandwidth test (on page 7)." The key data points in the output are highlighted.

Be sure to run the system-vetting tests in the order they appear in the following section. The initial write

bandwidth test might need to be run twice with a short pause between the runs to setup the card for best

performance.

Write bandwidth test

Read IOPS test on Linux:

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1

...

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1

Starting 64 processes

Jobs: 64 (f=64):

[rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr] [100.0%

done] [420482/ 0 kb/s] [eta 00m:00s]

file1: (groupid=0, jobs=64): err= 0: pid=27861

read : io=4, 058MiB, bw=414MiB/s, iops=104K, runt= 10036msec

clat (usec) : min=44, max=36,940, avg=620.03, stdev=50.53

bw (KiB/s) : min=5873, max=15664, per=1.55%, avg=6560.25, stdev=54.21

cpu : usr=0.50%, sys=4.01%, ctx=1163152, majf=0, minf=704

IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%,

>64=0.0%

submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%,

>64=0.0%

complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%,

>64=0.0%

issued r/w: total=1038929/0, short=0/0

lat (usec): 50=0.01%, 100=0.43%, 250=11.05%, 500=35.74%, 750=22.88%

lat (usec): 1000=14.99%

lat (msec): 2=14.88%, 4=0.02%, 10=0.01%, 50=0.01%

Run status group 0 (all jobs):

1 2 3 4 5 6 7 8 9 10 11 12 ... 32 33

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HP IO Accelerator for BladeSystem c-Class Performance Tuning Manuel d'utilisateur Page 7