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<p class="MsoNormal"><span style="font-size:14.0pt">Please find attached the content from the refenced wiki page<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Kevin Zhao <kevin.zhao@linaro.org><br>
<b>Date: </b>Tuesday, March 29, 2022 at 12:38 AM<br>
<b>To: </b>Oleg Drokin <green@whamcloud.com><br>
<b>Cc: </b>Minh Diep <mdiep@whamcloud.com>, Xinliang Liu <xinliang.liu@linaro.org>, Peter Jones <pjones@whamcloud.com>, Xinliang Liu via lustre-devel <lustre-devel@lists.lustre.org>, "cloud-dev-request@op-lists.linaro.org" <cloud-dev-request@op-lists.linaro.org>,
Jian Yu <jiyu@whamcloud.com>, Andreas Dilger <adilger@whamcloud.com>, "jsimmons@infradead.org" <jsimmons@infradead.org>, Li Xi <lixi@ddn.com><br>
<b>Subject: </b>Re: Lustre Arm stuff status and work plan<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Oleg,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">We are now defining the test process and setting up a trial test cluster as the external Arm64 test resources.<o:p></o:p></p>
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<p class="MsoNormal">Can I have an account to post consequences to Maloo DB? The trial arm64 external test cluster is under setup and hopefully, it will be finished quite soon. I want to test if we can post data to Maloo DB. Btw, the doc you point before: <a href="https://wiki.whamcloud.com/display/TEI/Test+results+format" target="_blank">https://wiki.whamcloud.com/display/TEI/Test+results+format</a> can
not access, just 404.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, 28 Feb 2022 at 13:36, Oleg Drokin <<a href="mailto:green@whamcloud.com">green@whamcloud.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hello! <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> the sizing really depends on your test scaling requirements.<o:p></o:p></p>
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<p class="MsoNormal"> For example my own test infrastructure is a couple builders + 4 nodes for VMs (each has 256G RAM), 160 VM pairs in total,<o:p></o:p></p>
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<p class="MsoNormal"> and on a particularly busy day another 80 VM pairs can be added. This is to ensure speedy feedback to developers.<o:p></o:p></p>
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<p class="MsoNormal"> You can operate a much smaller scale testing system if you want, just keep in mind what is the longest running test would take<o:p></o:p></p>
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<p class="MsoNormal"> to understand how many patches could be tested in parallel (sometimes patch bombs result in 20+ patches submission at the same time).<o:p></o:p></p>
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<p class="MsoNormal"> Here’s stats for last 30 days. <span style="font-family:"unset",serif"><a href="https://imgur.com/lk2ogJv" target="_blank">https://imgur.com/lk2ogJv</a> 1 item means single patch n processing. time in testing for a patch is typically
about 3.5 hours.</span><o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal">maloo shows the resources when you go into the test session, for example
<a href="https://testing.whamcloud.com/test_sessions/4de25b47-43fc-4bfc-87aa-15e4968519a7" target="_blank">
https://testing.whamcloud.com/test_sessions/4de25b47-43fc-4bfc-87aa-15e4968519a7</a> - scroll down to see list of nodes<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal">On Feb 18, 2022, at 3:05 AM, Kevin Zhao <<a href="mailto:kevin.zhao@linaro.org" target="_blank">kevin.zhao@linaro.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Hi All,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><br>
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</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Greetings and thanks a lot for your comments! Xinliang and I are from
<a href="https://www.linaro.org/" target="_blank">Linaro</a>, an organization focusing on Arm open-source ecosystem development. We have been working on Lustre on the Arm64 server and client end for a while now, already fixing a few bugs on arm64.
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">As Xinliang said before, we want to enable the Arm64 CI, Oleg advises that we can plug our own CI nodes into</span> the Jenkins<span style="font-family:"Arial",sans-serif">. Now we want to understand
and estimate how many machines resources can meet our requests, and doing the next stage plan of our hardware to meet the Lustre test requirements.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><br>
<br>
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">As I understand, the test jobs will cover the ZFS and Ldiskfs backend with 2 scenarios:</span><o:p></o:p></p>
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<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1;vertical-align:baseline;font-variant-numeric:normal;font-variant-east-asian:normal;white-space:pre-wrap">
<span style="font-family:"Arial",sans-serif">Lustre Arm64 Server + Arm64 Client( High Priority )<o:p></o:p></span></li></ul>
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<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1;vertical-align:baseline;font-variant-numeric:normal;font-variant-east-asian:normal;white-space:pre-wrap">
<span style="font-family:"Arial",sans-serif">Lustre Arm64 Server + x86_64 Client<o:p></o:p></span></li></ul>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">After going through the Lustre test website:
</span><a href="https://testing.whamcloud.com/test_sessions" target="_blank"><span style="font-family:"Arial",sans-serif">https://testing.whamcloud.com/test_sessions</span></a><span style="font-family:"Arial",sans-serif">, it is quite clear to show the test
info, and still remain some questions, that will be great if the community can give me a clear answer.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">1. Is there a link to show all the machine resources</span><span lang="EN-US" style="font-family:"MS Gothic"">？</span><span style="font-family:"Arial",sans-serif"> Including the machine info,
CPU, memory and peripheral info. </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">2. Do we have a CI infra arch overview diagram to show the machine usage and communication? </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">3. How many machines are needed to meet the request of the Lustre Arm64 Server + Arm64 Client test?</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><br>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Thanks a lot for your time, and look forward to your response.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Tue, 28 Dec 2021 at 09:58, Oleg Drokin <<a href="mailto:green@whamcloud.com" target="_blank">green@whamcloud.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Dec 27, 2021, at 8:53 PM, Xinliang Liu <<a href="mailto:xinliang.liu@linaro.org" target="_blank">xinliang.liu@linaro.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Maloo is just one place to link to to actually let people see the results, but you can link to external resources too<br>
like e.g. gatekeeper janitor helper does or assuming the information is small enough it could be entirely contained<br>
in the comment (like say for a build failure)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Ok, understand now. Is there any other reference external CI that posts results to Lustre gerrit now?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Currently there are:<o:p></o:p></p>
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<p class="MsoNormal">- checkpatch and Misc code checks (smach) that post their results as 100% comment only. they share codebase pretty much<o:p></o:p></p>
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<p class="MsoNormal">- the Janitor (also started with above codebase but got changed and extended a lot)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">There was external interest in the past to post results to gerrit but it never materialized in the end<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal"><b>Best Regards</b> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;font-size:inherit">
<b><span style="font-family:Roboto;color:#38761D">Kevin Zhao</span></b><span style="font-family:Roboto;color:#888888"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;font-size:inherit">
<span style="font-family:Roboto;color:#757B80">Tech Lead, LDCG Cloud Infrastructure</span><span style="font-family:Roboto;color:#888888"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;font-size:inherit">
<span style="font-family:Roboto;color:#757B80">Linaro Vertical Technologies</span><span style="font-family:Roboto;color:#888888"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;font-size:inherit">
<span style="font-family:Roboto;color:#757B80">IRC(freenode): kevinz</span><span style="font-family:Roboto;color:#888888"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:Roboto;color:#888888">Slack(</span><span style="font-family:Roboto;color:#757B80"><a href="http://kubernetes.slack.com/" target="_blank">kubernetes.slack.com</a>)</span><span style="font-family:Roboto;color:#888888">:
kevinz</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;font-size:inherit">
<span style="font-family:Roboto;color:#757B80"><a href="mailto:kevin.zhao@linaro.org" target="_blank">kevin.zhao@linaro.org</a> | Mobile/Direct/Wechat: +86 18818270915 </span><span style="font-family:Roboto;color:#888888"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Roboto;color:#888888"><o:p> </o:p></span></p>
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<o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal"><b>Best Regards</b><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-family:Roboto;color:#38761D">Kevin Zhao</span></b><span style="font-size:13.5pt;font-family:Roboto;color:#888888"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:Roboto;color:#757B80">Tech Lead, LDCG Cloud Infrastructure</span><span style="font-size:13.5pt;font-family:Roboto;color:#888888"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:Roboto;color:#757B80">Linaro Vertical Technologies</span><span style="font-size:13.5pt;font-family:Roboto;color:#888888"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:Roboto;color:#757B80">IRC(freenode): kevinz</span><span style="font-size:13.5pt;font-family:Roboto;color:#888888"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:Roboto;color:#888888">Slack(</span><span style="font-family:Roboto;color:#757B80"><a href="http://kubernetes.slack.com" target="_blank">kubernetes.slack.com</a>)</span><span style="font-family:Roboto;color:#888888">:
kevinz</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:Roboto;color:#757B80"><a href="mailto:kevin.zhao@linaro.org" target="_blank">kevin.zhao@linaro.org</a> | Mobile/Direct/Wechat: +86 18818270915 </span><span style="font-size:13.5pt;font-family:Roboto;color:#888888"><o:p></o:p></span></p>
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