<p dir="ltr">Which process is pegging the CPU?</p>
<div class="gmail_quote">On May 2, 2014 6:12 AM, <<a href="mailto:molo.coc@web.de">molo.coc@web.de</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div style="font-family:Verdana;font-size:12.0px"><div>We have two nodes which are serving PHP webpages with PHP5-FPM. Both Nodes are configured with drbd in dual primary mode.</div>
<div>In our tests, if one of these two nodes get 10-20 Pagerefresh's at the same time, the CPU are 100% in use.</div>
<div>For these 10-20 Pagerequests the server are 1.5 minutes busy.</div>
<div> </div>
<div>Without OCFS (harddrive is formatted with ext4) for the same 10-20 requests, it tooks only 0.1 Seconds to complete.</div>
<div>We only see a long running PHP Process which get timeouted sometime with '30 seconds exceeded for including a file' . We tried mounting the ocfs2 device with 'noatime, nodiratime, data=writeback', but it didn't helped.</div>
<div> </div>
<div>does someone has a tip for us ?</div>
<div>(If we use ocfs2 with icsci, there are no changes)</div>
<div> </div>
<div>thanks a lot!</div></div></div>
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