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    <title>topic High latency and CPU Usage in VMware vSphere™ Discussions</title>
    <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/High-latency-and-CPU-Usage/m-p/970058#M12080</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi&lt;/P&gt;&lt;P&gt;We have 10 ESXi hosts with different ESXi Version (6 and 6.5) and HBA addapters and 4 storages connected via FC to each host&lt;/P&gt;&lt;P&gt;Once a week we have a problem:&lt;/P&gt;&lt;P&gt;Storage latency starts to grow from normal 20-30ms to 1500 and more.&lt;/P&gt;&lt;P&gt;After 5-10 minutes we get 100% CPU peak load (see screenshot)&lt;/P&gt;&lt;P&gt;Esxtop shows GAVG and DAVG 1500 and more, but QUED - 0.&lt;/P&gt;&lt;P&gt;After shutdown VM who generate a lot of IO traffic all problems disappear instantly.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;We get this problem on different ESXI versions (6 and 6.5), different HBA (Emulex LPe12000 and ISP2532), different storages (HP and Hitachi) and different VM must shutdown to resolve problem.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;What else is worth paying attention to in order to diagnose the problem?&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Mon, 05 Feb 2018 08:12:28 GMT</pubDate>
    <dc:creator>Pavellu</dc:creator>
    <dc:date>2018-02-05T08:12:28Z</dc:date>
    <item>
      <title>High latency and CPU Usage</title>
      <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/High-latency-and-CPU-Usage/m-p/970058#M12080</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi&lt;/P&gt;&lt;P&gt;We have 10 ESXi hosts with different ESXi Version (6 and 6.5) and HBA addapters and 4 storages connected via FC to each host&lt;/P&gt;&lt;P&gt;Once a week we have a problem:&lt;/P&gt;&lt;P&gt;Storage latency starts to grow from normal 20-30ms to 1500 and more.&lt;/P&gt;&lt;P&gt;After 5-10 minutes we get 100% CPU peak load (see screenshot)&lt;/P&gt;&lt;P&gt;Esxtop shows GAVG and DAVG 1500 and more, but QUED - 0.&lt;/P&gt;&lt;P&gt;After shutdown VM who generate a lot of IO traffic all problems disappear instantly.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;We get this problem on different ESXI versions (6 and 6.5), different HBA (Emulex LPe12000 and ISP2532), different storages (HP and Hitachi) and different VM must shutdown to resolve problem.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;What else is worth paying attention to in order to diagnose the problem?&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 05 Feb 2018 08:12:28 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSphere-Discussions/High-latency-and-CPU-Usage/m-p/970058#M12080</guid>
      <dc:creator>Pavellu</dc:creator>
      <dc:date>2018-02-05T08:12:28Z</dc:date>
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