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-16714] make migrate_copy_data use O_DIRECT when appropriate https://jira.whamcloud.com/browse/LU-16714 Lustre <p>In recent Lustre versions, direct I/O is much, much faster for larger sizes.  We should take advantage of that in our migrate code.</p> LU-16714 make migrate_copy_data use O_DIRECT when appropriate Improvement Minor Open Unresolved Patrick Farrell Patrick Farrell Wed, 5 Apr 2023 16:26:58 +0000 Tue, 18 Jul 2023 00:47:51 +0000 0 6 <p>"Patrick Farrell &lt;pfarrell@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/c/fs/lustre-release/+/50546" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/50546</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16714" title="make migrate_copy_data use O_DIRECT when appropriate" class="issue-link" data-issue-key="LU-16714">LU-16714</a> utils: Clarify fd/fdv naming<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: a41964bc063e99c6383dd942e158ad6eff8d2caa</p> <p>"Patrick Farrell &lt;pfarrell@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/c/fs/lustre-release/+/50547" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/50547</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16714" title="make migrate_copy_data use O_DIRECT when appropriate" class="issue-link" data-issue-key="LU-16714">LU-16714</a> utils: Improve DIO/BIO choice in migrate<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 32707c1eb58dffd132f7c8d62b8d7b84f1fbf986</p> <p>Were you able to measure the performance impact of this patch?</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/50546/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/50546/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16714" title="make migrate_copy_data use O_DIRECT when appropriate" class="issue-link" data-issue-key="LU-16714">LU-16714</a> utils: Clarify fd/fdv naming<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: d2a5f10463fe68be3f9858c876a094d8eeae3726</p> Related Development Rank 1|i03i6v: Rank (Obsolete) 9223372036854775807