<html><head><meta http-equiv="content-type" content="text/html; charset=UTF-8"></head><body><div class="rich_html_content" style="color:#000000; font-Size:12pt; font-family:微软雅黑; word-wrap:break-word;x-overflow:hidden;">Hi changwei, i'm sure if you enable quota, the performance will sharply drop. There is a issue to implement glusterfs project quota just like xfs project quota, but no progress for a long time.</div><div class="rich_html_content" style="color:#000000; font-Size:12pt; font-family:微软雅黑; word-wrap:break-word;x-overflow:hidden;">Pls ref: https://github.com/gluster/glusterfs/issues/184</div><div class="rich_html_content" style="color:#000000; font-Size:12pt; font-family:微软雅黑; word-wrap:break-word;x-overflow:hidden;"><br></div><div class="rich_html_content" style="color:#000000; font-Size:12pt; font-family:微软雅黑; word-wrap:break-word;x-overflow:hidden;"><br></div><div id="SIGNNAME7671"></div><div><span id="_THINKMAILNAME7671" font-size:12pt;font-family:microsoft="" yahei;=""></span></div><blockquote style="margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;"><div> </div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><meta charset="UTF-8"><div style="color:#333333; font-Size:12pt;font-family:Microsoft YaHei;">发件人: <a href="mailto:chge@linux.alibaba.com">Changwei Ge</a></div><div style="color:#333333; font-Size:12pt;font-family:Microsoft YaHei;">时间: 2019/08/16(星期五)17:09</div><div style="color:#333333; font-Size:12pt;font-family:Microsoft YaHei;">收件人: <a href="mailto:gluster-devel@gluster.org">gluster-devel</a>;</div><div style="color:#333333; font-Size:12pt;font-family:Microsoft YaHei;">主题: [Gluster-devel] Glusterfs performance regression with quota enabled</div></div></blockquote>Hi,<br><br>I am using glusterfs-5.6 with quota enabled. I observed a obvious <br>performance regression about 30% against a certain vdbench workload[1].<br><br>But I didn't set up a hard-limit or soft-limit to any particular volume <br>or directory yet, just enable quota.<br><br>After disabling features/quota, glusterfs performance went normal.<br><br><br>Is it normal that qutoa will make the performance sharply drop?<br><br><br>Thanks,<br><br>Changwei<br><br><br>[1]:<br><br>messagescan=no<br><br>fsd=fsd1,anchor=/mnt/q8,depth=1,width=1,files=50000,size=(32k,20,64k,30,128k,30,256k,20)<br><br>fwd=fwd1,fsd=fsd1,operation=read,rdpct=80,xfersize=8k,fileio=random,fileselect=random,threads=8<br><br>rd=rd1,fwd=fwd1,fwdrate=max,format=yes,elapsed=100,interval=1<br><br>_______________________________________________<br><br>Community Meeting Calendar:<br><br>APAC Schedule -<br>Every 2nd and 4th Tuesday at 11:30 AM IST<br>Bridge: https://bluejeans.com/836554017<br><br>NA/EMEA Schedule -<br>Every 1st and 3rd Tuesday at 01:00 PM EDT<br>Bridge: https://bluejeans.com/486278655<br><br>Gluster-devel mailing list<br>Gluster-devel@gluster.org<br>https://lists.gluster.org/mailman/listinfo/gluster-devel<br><br></body></html>