<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hello together,<div><br></div><div>very interesting.</div><div><br></div><div>i switched to xfs filesystem. But same situation. For my proposes both filesystems are perfect fast.</div><div><br></div><div>Then i did a benchmark with command 'dd'</div><div><br></div><div>Tried with <span style="font-family: Georgia; font-size: 16px; ">'dd if=/dev/zero of=/share/mounted_glustered_dir/test.img bs=1M count=1000'.</span></div><div><font face="Georgia"><span style="font-size: 16px;"><br></span></font></div><div><font face="Georgia"><span style="font-size: 16px;">Perfect write speed! Also at the replicated peer.</span></font></div><div><font face="Georgia"><span style="font-size: 16px;"><br></span></font></div><div><font face="Georgia"><span style="font-size: 16px;">500MB in perfect less than 10 Seconds, also at the replicated peer.</span></font></div><div><font face="Georgia"><span style="font-size: 16px;"><br></span></font></div><div><font face="Georgia"><span style="font-size: 16px;">But when i copy many files from a to mounted glustered dir, then the write speed broke into KB-Range.</span></font></div><div><font face="Georgia"><span style="font-size: 16px;"><br></span></font></div><div><font face="Georgia"><span style="font-size: 16px;">Any clue what this can be?</span></font></div><div><font face="Georgia"><span style="font-size: 16px;"><br></span></font></div><div><font face="Georgia"><span style="font-size: 16px;">Thanks a lot,</span></font></div><div><font face="Georgia"><span style="font-size: 16px;"><br></span></font></div><div><font face="Georgia"><span style="font-size: 16px;">Michael<br></span></font><div apple-content-edited="true">
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<br><div><div>Am 27.09.2013 um 22:24 schrieb Michael Post <<a href="mailto:michael_post@web.de">michael_post@web.de</a>>:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hallo,<br><br>i looked at iotop.<br><br>One file will be written (Average Speed 250k/s). After the file is written nothing happens for 1 or 2 seconds. Then the next procedure for writing will be started.<br>The cpu is idle and very bored.<br><br>Does any one has any clue for me?<br><br>Hopeful greetings,<br><br>Michael <br><br><br><br>Am 27.09.2013 um 21:17 schrieb Michael Post <<a href="mailto:michael_post@web.de">michael_post@web.de</a>>:<br><br><blockquote type="cite">Hello together,<br><br>i installed gluster (Version glusterfs 3.4.0qa2) on an opensuse 12.3 environment. Based on an ext4 filesystem i created a two peer (geo replication) environment.<br><br>When i copy some files, the performance is very slow. <br>For 500KB the system need between 14 till 20 seconds.<br><br>This can not be normal, or?<br><br>A previous test, but on two debian wheezy systems all works fast and fine.<br><br>Where can i analyze and debug it?<br><br>Thanks for your help,<br><br>Michael<br>_______________________________________________<br>Gluster-users mailing list<br><a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br>http://supercolony.gluster.org/mailman/listinfo/gluster-users<br></blockquote><br>_______________________________________________<br>Gluster-users mailing list<br><a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br>http://supercolony.gluster.org/mailman/listinfo/gluster-users<br></blockquote></div><br></div></body></html>