https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-2254 Lustre <p>Create a new ticket to track history data and technical discussions of Lustre metadata performance.</p> LU-2254

Lustre metadata performance tracker

Task Minor Open Unresolved WC Triage Liang Zhen Wed, 31 Oct 2012 09:00:58 +0000 Thu, 8 Nov 2012 12:16:33 +0000 0 2 <p>Here is 2.3 metadata performance demonstration for openSFS:<br/> <a href="http://jira.whamcloud.com/secure/attachment/11805/opensfs_smp_demonstration.pdf" class="external-link" rel="nofollow">http://jira.whamcloud.com/secure/attachment/11805/opensfs_smp_demonstration.pdf</a></p> <p>Here is patched mdtest: (<a href="http://jira.whamcloud.com/secure/attachment/11995/mdtest_lustre_1.8.3.tgz" class="external-link" rel="nofollow">http://jira.whamcloud.com/secure/attachment/11995/mdtest_lustre_1.8.3.tgz</a>)</p> <ul> <li>user can specify stripecount of file</li> <li>can run for mknod</li> <li>user can use range expression to specify multiple paths</li> </ul> <p>still use the same environment, change online CPU number of MDS and rerun some tests<br/> (<a href="http://jira.whamcloud.com/secure/attachment/12013/smp_perf_fat_intel_2.pdf" class="external-link" rel="nofollow">http://jira.whamcloud.com/secure/attachment/12013/smp_perf_fat_intel_2.pdf</a>)</p> <p>AMD server as MDS (a little slower than the intel server) which has 16 cores, rerun some tests with both 2.2 and 2.3<br/> Also, because AMD server doesn't have SSD, so use 4G ramdisk ask journal device.<br/> (<a href="http://jira.whamcloud.com/secure/attachment/12014/smp_perf_fat_amd.pdf" class="external-link" rel="nofollow">http://jira.whamcloud.com/secure/attachment/12014/smp_perf_fat_amd.pdf</a>)</p> <p>again, the same environment, intel server. rerun tests with different external &amp; internal journal. (2.3 only)<br/> (<a href="http://jira.whamcloud.com/secure/attachment/12015/smp_journal_perf_fat_intel_2.pdf" class="external-link" rel="nofollow">http://jira.whamcloud.com/secure/attachment/12015/smp_journal_perf_fat_intel_2.pdf</a>)</p> <p>raw data of previous three tests<br/> <a href="http://jira.whamcloud.com/secure/attachment/12017/cpu_and_journal_log.tgz" class="external-link" rel="nofollow">http://jira.whamcloud.com/secure/attachment/12017/cpu_and_journal_log.tgz</a></p> <p>Hi Liang,<br/> This is quite interesting. What do you mean multi-mount lustre on the client?</p> Development Rank 1|hzvben: Rank (Obsolete) 5389