HP c-Class Performance Tuning manual Write bandwidth test

$ 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):

System performance 7