Whamcloud Community JIRA https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 [LU-7896] lu_object_limit() is called too frequently https://jira.whamcloud.com/browse/LU-7896 Lustre <p>with ZFS the number of objects in LU cache is limited, so any lu_object_new() checks whether the limit is exceeded. so, at some point it's called for every new object and worse - many threads got blocked in lu_site_purge() due to that. we don't need that strong semantics for the number of cached object, this should be fixed in a way to purge objects in batches in non-blocking manner.</p> LU-7896 lu_object_limit() is called too frequently Improvement Minor Resolved Fixed Alex Zhuravlev Alex Zhuravlev Tue, 22 Mar 2016 14:12:58 +0000 Wed, 13 Feb 2019 07:38:45 +0000 Wed, 22 Jun 2016 15:10:34 +0000 Lustre 2.9.0 0 4 <p>Alex Zhuravlev (alexey.zhuravlev@intel.com) uploaded a new patch: <a href="http://review.whamcloud.com/19082" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/19082</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-7896" title="lu_object_limit() is called too frequently" class="issue-link" data-issue-key="LU-7896"><del>LU-7896</del></a>: do not call lu_site_purge() for single object exceed<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: b51f1593d78daa80956d3b71fc943b2fbe06c47f</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="http://review.whamcloud.com/19082/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/19082/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-7896" title="lu_object_limit() is called too frequently" class="issue-link" data-issue-key="LU-7896"><del>LU-7896</del></a>: do not call lu_site_purge() for single object exceed<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f3d42a7000884149d3be408b9d5f170a355dd9e6</p> <p>Landed to master for 2.9.0</p> Blocker LU-7895 Related LU-7997 LU-5749 Development Rank 1|hzy58f: Rank (Obsolete) 9223372036854775807