<div dir="ltr"><div><div><div><div>No official document here, but just a quick and dirty dd on my first glusterfs install (back in February).<br></div><div>Setup: Two servers, replica=2, Hardware Raid 1, SATA Nearline 10k<br>
</div><br></div>On a clean system (back in February) without anything else running:<br><br><pre>time { dd if=/dev/zero of=/mnt/vmdata/file.tmp bs=32768 count=32768; sync; }<br>32768+0 records in
32768+0 records out
1073741824 bytes (1.1 GB) copied, 17.3732 s, 61.8 MB/s
real 0m17.594s
user 0m0.028s
sys 0m4.697s</pre><br></div>Today I just ran another dd, just for
you.. The glusterfs mounted volume is only used for nightly backups so
no current traffic on it (but the disks themselves are having some
I/O's). Note this is no high end system, just a small Proxmox cluster
for some vms.<br>
<br>time { dd if=/dev/zero of=/mnt/pve/vol1/dump/file.tmp bs=4096 count=1000000; sync; }<br>1000000+0 records in<br>1000000+0 records out<br><a href="tel:4096000000" value="+14096000000" target="_blank">4096000000</a> bytes (4.1 GB) copied, 162.628 s, 25.2 MB/s<br>
<br>real 2m42.844s<br>
user 0m1.072s<br>sys 0m30.541s<br><br>..........<br><br> time { dd if=/dev/zero of=/mnt/pve/vol1/dump/file.tmp bs=4096 count=10000000; sync; }<br>10000000+0 records in<br>10000000+0 records out<br>40960000000 bytes (41 GB) copied, 1674.28 s, 24.5 MB/s<br>
<br>real 27m54.772s<br>user 0m9.151s<br>sys 4m26.453s<br><br></div>Hope these values help to give you a "starting point". </div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Jun 20, 2014 at 1:03 PM, Uwe Kastens <span dir="ltr"><<a href="mailto:kisteorg@googlemail.com" target="_blank">kisteorg@googlemail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div>Hi there, <br><br></div>Are there any documents available which allows to get an idea about performance and IOPs? <br>
<br></div>If I understand the concept correctly a brick could be a harddisk or a subset of a RAID. So if would simply mirror two bricks on two servers the limiting factor would be the NIC between? <br>
<br></div>Maybe someone could give a starting point. <br></div><br>Kind Regards<br><br></div>Kiste<br></div>
<br>_______________________________________________<br>
Gluster-users mailing list<br>
<a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br>
<a href="http://supercolony.gluster.org/mailman/listinfo/gluster-users" target="_blank">http://supercolony.gluster.org/mailman/listinfo/gluster-users</a><br></blockquote></div><br></div>