<div dir="ltr"><br><div class="gmail_quote"><div dir="ltr">On Fri, Jul 6, 2018 at 10:18 AM Amy Marrich <<a href="mailto:amy@demarco.com">amy@demarco.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hey,<div><br></div><div>Forwarding to the Dev list as you may get a better response from there.</div><div><br></div><div>Thanks,</div><div><br></div><div>Amy (spotz)</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jul 5, 2018 at 11:30 PM, Keynes Lee/WHQ/Wistron <span dir="ltr"><<a href="mailto:Keynes_Lee@wistron.com" target="_blank">Keynes_Lee@wistron.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div class="gmail-m_-2023949908997429102m_2424898512532570598WordSection1">
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US">Hi <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US">When making “cinder backup-create”<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US">We found the process “cinder-backup” use 100% util of 1 CPU core on an OpenStack Controller node.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US">It not just causes a bad backup performance, also make the openstack-cinder-backup unstable.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US">Especially when we make several backup at the same time.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US">The Controller Node has 40 CPU cores.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:Consolas" lang="EN-US">Can we assign more CPU resources to cinder-backup ?</span></p></div></div></blockquote></div></div></blockquote><div><br></div><div>This has been addressed in [1], but it may not be in the release you're using.</div><div><br></div><div>[1] <a href="https://github.com/openstack/cinder/commit/373b52404151d80e83004a37d543f825846edea1">https://github.com/openstack/cinder/commit/373b52404151d80e83004a37d543f825846edea1</a><br></div><div><br></div><div>Alan<span lang="EN-US"> </span><span lang="EN-US"> </span><span lang="EN-US"> </span><span style="font-family:Consolas" lang="EN-US"> </span><span lang="EN-US"><br></span></div><div><span lang="EN-US"></span><span lang="EN-US"> </span>
</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div lang="ZH-TW"><div class="gmail-m_-2023949908997429102m_2424898512532570598WordSection1"><table class="gmail-m_-2023949908997429102m_2424898512532570598MsoNormalTable" style="border-collapse:collapse" cellspacing="0" cellpadding="0" border="0">
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<p class="MsoNormal"><span style="color:rgb(31,73,125)" lang="EN-US"><img id="gmail-m_-2023949908997429102m_2424898512532570598圖片_x0020_1" src="cid:image001.jpg@01D41525.23F355B0" alt="cid:image007.jpg@01D1747D.DB260110" width="237" height="91"></span><span style="font-size:11pt;font-family:"\0065b0\007d30\00660e\009ad4-ExtB",serif;color:black" lang="EN-US"><u></u><u></u></span></p>
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<b><span style="font-size:14pt;line-height:115%;font-family:"\0065b0\007d30\00660e\009ad4-ExtB",serif;color:rgb(0,88,154)" lang="EN-US">Keynes Lee
</span></b><b><span style="font-size:14pt;line-height:115%;font-family:"\0065b0\007d30\00660e\009ad4",serif;color:rgb(0,88,154)">李</span></b><b><span style="font-size:14pt;line-height:115%;font-family:"\0065b0\007d30\00660e\009ad4-ExtB",serif;color:rgb(0,88,154)">
</span></b><b><span style="font-size:14pt;line-height:115%;font-family:"\0065b0\007d30\00660e\009ad4",serif;color:rgb(0,88,154)">俊</span></b><b><span style="font-size:14pt;line-height:115%;font-family:"\0065b0\007d30\00660e\009ad4-ExtB",serif;color:rgb(0,88,154)">
</span></b><b><span style="font-size:14pt;line-height:115%;font-family:"\0065b0\007d30\00660e\009ad4",serif;color:rgb(0,88,154)">賢</span></b><span style="font-size:14pt;line-height:115%;font-family:"Futura Bk";color:rgb(64,64,64)" lang="EN-US"><u></u><u></u></span></p>
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<span style="font-family:"Futura Bk";color:black" lang="EN-US">Direct:</span><span style="font-size:11pt;line-height:115%;font-family:"Futura Bk";color:black" lang="EN-US"><u></u><u></u></span></p>
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<span style="font-size:11pt;line-height:115%;font-family:"\0065b0\007d30\00660e\009ad4-ExtB",serif;color:black" lang="EN-US"><u></u> <u></u></span></p>
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<span style="font-family:"Futura Bk";color:black" lang="EN-US">E-Mail:</span><span style="font-size:11pt;line-height:115%;font-family:"Futura Bk";color:black" lang="EN-US"><u></u><u></u></span></p>
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<span style="font-family:"Futura Bk";color:rgb(31,73,125)" lang="EN-US"><a href="mailto:keynes_lee@wistron.com" target="_blank"><span style="color:blue">keynes_lee@wistron.com</span></a></span><span style="font-size:11pt;line-height:115%;font-family:"Futura Bk";color:black" lang="EN-US"><u></u><u></u></span></p>
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