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Hi,<br>
<br>
Are You starting Your sheep daemon with --log level=info parameter?<br>
<br>
log level is by default set to debug and it uses a lot of
sbd-connected host's HDD space and IOPS for log-writing (both kernel
log and sheep log)<br>
<pre class="moz-signature" cols="72">Regards
Michał Chybowski
Tiktalik.com</pre>
<div class="moz-cite-prefix">W dniu 20.08.2015 o 18:47,
zhanghongzhou pisze:<br>
</div>
<blockquote cite="mid:SNT152-W864592F2F34A672002A22D9D660@phx.gbl"
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<div dir="ltr">Hi experts,
<div><br>
</div>
<div>I mounted sbd as ext4 and tested IOPS for 4k rand/seq rw</div>
<div><br>
</div>
<div>32 sheep, 3-replica. Backend is ssd.</div>
<div><br>
</div>
<div>The result is much slower than testing on bear ssd.</div>
<div>randread IOPS: 16732</div>
<div>randwrite IOPS: 1436</div>
<div><span style="font-size: 12pt;">sequential read throughput</span>:
64MB/s</div>
<div>sequential write throughput: 6MB/s</div>
<div><br>
</div>
<div>I saw some <span style="font-size: 12pt;">qemu fio test </span><span
style="font-size: 12pt;">results from COJ2015 presentation,
which is much better.</span></div>
<div><span style="font-size: 12pt;"><br>
</span></div>
<div>Is my sbd performance result solid? Or maybe it's
configuration difference?</div>
<div><span style="font-size: 12pt;"><br>
</span></div>
<div><span style="font-size: 12pt;">B.R.</span></div>
<div>Hongzhou</div>
</div>
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