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-13258 Lustre <p>Recently Lustre has moved to using work queue but the trade off is that the work queues can run on any core. This will introduce noise which on clients means it has an performance impact on users application runs. The linux kernel offers a way to make binding to specific core possible with the function apply_workqueue_attrs() which can be passed a cpumask.</p> <p> </p> LU-13258

Bind linux workqueues to specific core

Improvement Minor Resolved Fixed James A Simmons James A Simmons Mon, 17 Feb 2020 18:08:17 +0000 Wed, 27 May 2020 11:28:16 +0000 Wed, 27 May 2020 11:28:16 +0000 Lustre 2.14.0 Lustre 2.14.0 0 3 <p>James Simmons (jsimmons@infradead.org) uploaded a new patch: <a href="https://review.whamcloud.com/37613" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37613</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> libcfs: make apply_workqueue_attrs() available for Lustre<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 3b6469dfb8d9ade856abd3f429f32abed64023e3</p> <p>Both the read-ahead queue and the ptlrpc pinger would be good to bind to cores laid out by CPT handling. Their is also obd zombie cleanup but that I'm not so sure about.</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37613/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37613/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> libcfs: make apply_workqueue_attrs() available for Lustre<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 3453c95f513cd9d65f8e74e64d10d8942d934f01</p> <p>James Simmons (jsimmons@infradead.org) uploaded a new patch: <a href="https://review.whamcloud.com/37717" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37717</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> llite: bind readahead workqueue to CPT set<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 2a2918a6fedd80b5fe0c2745777f73ff68a31a3c</p> <p>Landed for 2.14</p> <p>More work. The patch that landed was the base patch.</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37727" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37727</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> libcfs: fixes for cfs_arch_init()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 55b95eadabfb4079fcd41906f2638abce7bcaca4</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37727/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37727/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> libcfs: fixes for cfs_arch_init()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 0fcf9378b524ded3ad260f3b655671c541e5a0b2</p> <p>more patches coming</p> <p>James Simmons (jsimmons@infradead.org) uploaded a new patch: <a href="https://review.whamcloud.com/38091" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38091</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> ptlrpc: bind pinger workqueue to CPT set<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 74307004eebc61d622001b89352d7145ed2181f8</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37717/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37717/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> llite: bind readahead workqueue to CPT set<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 21ccfd99de46e1ca1572b16db0d3cef9cd805f4f</p> <p>James Simmons (jsimmons@infradead.org) uploaded a new patch: <a href="https://review.whamcloud.com/38212" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38212</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> obdclass: bind zombie export cleanup workqueue<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 92efb9c6b6af6366110cf2fae9852fb64ec525e0</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/38091/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38091/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> ptlrpc: bind pinger workqueue to CPT set<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 8a43201a2f35f6210d7feb7fd02b79233dd6da6b</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/38212/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38212/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13258" title="Bind linux workqueues to specific core" class="issue-link" data-issue-key="LU-13258"><del>LU-13258</del></a> obdclass: bind zombie export cleanup workqueue<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 76b602c2bfe9d1b0ddaa14997a3056b19b3e90aa</p> Related LU-9859 LU-12043 LU-12748 LU-9441 Development Rank 1|i00tv3: Rank (Obsolete) 9223372036854775807