Hello lustre list, I'd like to use obdfilter-survey to figure out our performance subsystem benchmark. I have this setup on a development cluster (1.8.2) that nobody has access to.
Machine specs are as follows: Dual Xeon 5550 36G ram Dual connections to FC san with a single test lun of 300G * 15k sas drives "chunk"/"element" size is 64k. I am formatting as follows: mkfs.lustre --reformat --ost --fsname=test01 --mkfsoptions='-E stride=16,stripe-width=128' --mgsnode=10.1.5....@tcp0 /dev/dm-2 Because I have so much ram and I want to test actual disk speed, I am using the following obdfiter-survey command line: size=40000 rszlo=4 rszhi=1024 nobjlo=1 nobjhi=512 thrlo=1 thrhi=16 sh ./obdfilter-survey Our average file size is about 800kb, and we only have 10-15 clients at a time. I am doing this from the oss and it picks up "case=disk" which is fine. We do have many many small files (4k-16k'ish) and a few very large files. I'm more interested in optimizing for small file iops/throughput than large files since we are constrained to gigabit Ethernet on the networking side. Does this look like a reasonable obdfilter-survey test for our use case? Thanks, Robert The information contained in this message and its attachments is intended only for the private and confidential use of the intended recipient(s). If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e- mail is strictly prohibited. _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
