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-9436 Lustre <p>For DNE2, when the stripe count of a directory exceeds 16, metadata performance declined significantly. The number is reported from 20k IOPS to double digit IOPS.</p> LU-9436

DNE2 - performance improvement with wide stripping directory

Improvement Minor Open Unresolved WC Triage Jinshan Xiong llnl Tue, 2 May 2017 21:28:22 +0000 Mon, 19 Jul 2021 22:43:50 +0000 0 10 <p><a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=jinshan" class="user-hover" rel="Jinshan">jinshan</a>, were you measuring all ops or just certain ops?  Is the problem related to striped directory inheritance (-D option)?</p> <p>I suppose we should reevaluate this one after <a href="https://jira.whamcloud.com/browse/LU-6864" title="DNE3: Support multiple modify RPCs in flight for MDT-MDT connection" class="issue-link" data-issue-key="LU-6864"><del>LU-6864</del></a> is completed.</p> <p>The patch for <a href="https://jira.whamcloud.com/browse/LU-6864" title="DNE3: Support multiple modify RPCs in flight for MDT-MDT connection" class="issue-link" data-issue-key="LU-6864"><del>LU-6864</del></a> has been revived. I'm currently running scaling test to see what impact its doing.</p> <p><a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=simmonsja" class="user-hover" rel="simmonsja">simmonsja</a>, any news on your performance testing?</p> Related LU-6864 LU-11999 LU-13287 Development Rank 1|hzzbpr: Rank (Obsolete) 9223372036854775807