<html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div>Hi,<br></div><div><br></div><div>The issue you are seeing is a little complex one but information you have provided is very less.<br></div><div>- Volume info<br></div><div>- Volume status?<br></div><div>- What kind of IO is going on?<br></div><div>- Any brick is down or not?<br></div><div>- Snapshot of Top command.<br></div><div>- Anything you are seeing in glustershd or mount logs or bricks logs?<br></div><div><br></div><div>---<br></div><div>Ashish<br></div><div><br></div><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"ABHISHEK PALIWAL" <abhishpaliwal@gmail.com><br><b>To: </b>"gluster-users" <gluster-users@gluster.org>, "Gluster Devel" <gluster-devel@gluster.org><br><b>Sent: </b>Wednesday, August 2, 2017 1:49:30 PM<br><b>Subject: </b>Re: [Gluster-devel] High load on CPU due to glusterfsd process<br><div><br></div><div dir="ltr">Could you please response?<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jul 28, 2017 at 5:55 PM, ABHISHEK PALIWAL <span dir="ltr"><<a href="mailto:abhishpaliwal@gmail.com" target="_blank" data-mce-href="mailto:abhishpaliwal@gmail.com">abhishpaliwal@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex" data-mce-style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;"><div dir="ltr"><div><div><div><div>Hi Team,<br><div><br></div></div>Whenever I am performing the IO operation on gluster volume, the loads is getting increase on CPU which reaches upto 70-80 sometimes.<br><div><br></div></div>when we started debugging, found that the io_worker thread is created to server the IO request and consume high CPU till that request gets completed.<br><div><br></div></div>Could you please let me know why io_worker thread takes this much of CPU. <br><div><br></div></div>Is there any way to resole this? <br clear="all"><div><div><div><div><div><div><div><div><br>-- <br><div class="m_-1037531107868889788gmail_signature"><div dir="ltr"><br>Regards<br> Abhishek Paliwal<br></div></div></div></div></div></div></div></div></div></div></div></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr"><br><div><br></div><br><div><br></div>Regards<br> Abhishek Paliwal<br></div></div></div><br>_______________________________________________<br>Gluster-devel mailing list<br>Gluster-devel@gluster.org<br>http://lists.gluster.org/mailman/listinfo/gluster-devel</div><div><br></div></div></body></html>