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-6704 Lustre <p>From <a href="https://jira.whamcloud.com/browse/LU-2212" title="2.3RC2 don&#39;t set the checksum algorithm correctly" class="issue-link" data-issue-key="LU-2212"><del>LU-2212</del></a> - </p> <p>Something like:<br/> checksum_stats:</p> <ul class="alternate" type="square"> <li>crc32: { speed: 3568 MB/s, active: no }</li> <li>adler32: { speed: 4356 MB/s, active: yes }</li> <li>crc32c: { speed: 3668 MB/s, active: no }</li> </ul> LU-6704

Make checksum speeds available via /proc or /sys

Bug Minor Resolved Won't Fix Yang Sheng Stephen Champion easy patch Wed, 10 Jun 2015 07:20:58 +0000 Wed, 25 Nov 2015 01:29:23 +0000 Wed, 25 Nov 2015 01:29:23 +0000 0 6 <p>Patch in progress.</p> <p>Stephen Champion (schamp@sgi.com) uploaded a new patch: <a href="http://review.whamcloud.com/15193" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/15193</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-6704" title="Make checksum speeds available via /proc or /sys" class="issue-link" data-issue-key="LU-6704"><del>LU-6704</del></a> osc: improve checksum_type parameter<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: e048b345abd7149c00851baaacb1b9299d7b3e9e</p> <p><a href="http://review.whamcloud.com/#/c/15193/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/#/c/15193/</a></p> <p>Yang Sheng</p> <p>Could you please take care of this patch?</p> <p>Thanks</p> <p>Peter</p> <p>I had seen Andreas comment in <a href="https://jira.whamcloud.com/browse/LU-2212" title="2.3RC2 don&#39;t set the checksum algorithm correctly" class="issue-link" data-issue-key="LU-2212"><del>LU-2212</del></a>, and thought "good idea!". But now that I have a working version of this patch, it turns out it's not really very useful for what I'm doing, and I'm happy to abandon it - although it is nice to have the speed information in this context, so may be worth keeping.</p> <p>For background - I'm looking at unexpected characteristics of hash algorithm availability to clients, and thought it was annoying that I had to enable info debug at module init to get speed test results. I'd actually like to expose the speed test results via procs (and later sysfs) on both clients and servers.</p> <p>Would it make sense to just dump the speed results under /proc/sys/lnet/?</p> <p>Having the checksum speed available is useful, but I agree that changing the existing /proc file also causes problems with interoperability so it makes more sense to expose this information in a separate /proc file. Note that files under /proc/sys/lnet are one value per file, since these are moving into /sys in the upstream kernel which also requires this.</p> Development Rank 1|hzxfd3: Rank (Obsolete) 9223372036854775807 Severity