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-618 Lustre <p>Writes are accounted for, but not reads. The supplied patch fixes this.</p> <p>It seems that the accounting it normally done in the kernels page writeback and readahead<br/> functionality. Therefore as Lustre implements its own readahead, it must also maintain its own<br/> accounting on reads (but not writes).</p> <p>Previously discussed in:</p> <ul> <li><a href="http://lists.lustre.org/pipermail/lustre-devel-lustre.org/2011-April/001586.html" class="external-link" target="_blank" rel="nofollow noopener">http://lists.lustre.org/pipermail/lustre-devel-lustre.org/2011-April/001586.html</a></li> <li><a href="https://bugzilla.lustre.org/show_bug.cgi?id=24536" class="external-link" target="_blank" rel="nofollow noopener">https://bugzilla.lustre.org/show_bug.cgi?id=24536</a></li> </ul> Linux, Lustre b1_8 LU-618

Reads are not included in IO accounting

Bug Minor Resolved Fixed Hongchao Zhang Mark Hills Tue, 23 Aug 2011 07:25:14 +0000 Mon, 8 Jan 2018 19:15:03 +0000 Sun, 17 Dec 2017 16:02:35 +0000 Lustre 1.8.7 Lustre 1.8.6 Lustre 2.11.0 Lustre 2.10.3 0 7 <p>Mark</p> <p>Could you please upload the patch into gerrit? There are details on how to do this here - <a href="http://wiki.whamcloud.com/display/PUB/Using+Gerrit" class="external-link" target="_blank" rel="nofollow noopener">http://wiki.whamcloud.com/display/PUB/Using+Gerrit</a> . If this is not clear enough, please let me know.</p> <p>Thanks</p> <p>Peter</p> <p>Hongchao</p> <p>Please can you take care of porting this patch to master</p> <p>Thanks</p> <p>Peter</p> <p>its patch is tracked at <a href="https://review.whamcloud.com/#/c/1636" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/1636</a></p> <p>there is a bug in OFED(1.5.3.2) which causes the patch can't be builded successfully in RHEL5, the detailed info is,</p> <p>for RHEL5, there is no "task_io_account_cancelled_write" definition prior to 2.6.18-164.2.1 and is okay for OFED, which<br/> defines the same function in the backport (in kernel_addons/backport directory), but the function is defined from<br/> 2.6.18-164.2.1, then cause the redefinition error when building Lustre with OFED</p> <p>This conflict with RHEL5 is probably gone, should the patch be refreshed?</p> <p>the patch has been refreshed</p> <p>the patch <a href="https://review.whamcloud.com/#/c/1636" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/1636</a> has been updated against the latest master.</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="https://review.whamcloud.com/1636/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/1636/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-618" title="Reads are not included in IO accounting" class="issue-link" data-issue-key="LU-618"><del>LU-618</del></a> llite: IO accounting of page read<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 48de9b195d71cb57ee50636d75c59d78ee068cee</p> <p>Landed for 2.11</p> <p>Minh Diep (minh.diep@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/30570" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/30570</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-618" title="Reads are not included in IO accounting" class="issue-link" data-issue-key="LU-618"><del>LU-618</del></a> llite: IO accounting of page read<br/> Project: fs/lustre-release<br/> Branch: b2_10<br/> Current Patch Set: 1<br/> Commit: 6f8fb1839bafac7a52dee5779c065fad337d526f</p> <p>John L. Hammond (john.hammond@intel.com) merged in patch <a href="https://review.whamcloud.com/30570/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/30570/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-618" title="Reads are not included in IO accounting" class="issue-link" data-issue-key="LU-618"><del>LU-618</del></a> llite: IO accounting of page read<br/> Project: fs/lustre-release<br/> Branch: b2_10<br/> Current Patch Set: <br/> Commit: 19f21a32e74fd347f03c90b33b3d75ee537bf0e7</p> Bugzilla ID 24536.0 Development Rank 1|hzvy8f: Rank (Obsolete) 9730 Severity