`<div dir="ltr">That does seem to keep performance at much closer to parity. It still seems about 70-80% of peak vs what I was seeing before, but not that 100MB/sec bottleneck.<br><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 14, 2015 at 3:08 PM, Saso Kiselkov <span dir="ltr"><<a href="mailto:skiselkov.ml@gmail.com" target="_blank">skiselkov.ml@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On 9/14/15 9:05 PM, Doug Hughes wrote:<br>
> Probably something for Illumos, but you guys may have seen this or may<br>
> like to know.<br>
><br>
> I've got a 10g connected Xyratex box running OmniOS, and I noticed that<br>
> no matter how many streams (1, 2, 3) I only get 100MB/sec write<br>
> throughput and it just tops out. Even with 1 stream. This is with the<br>
> default lzjb compression on (fast option).<br>
><br>
> I turned off compression and have 2 streams running now and am getting<br>
> about 250-600MB/sec in aggregate. Much better!<br>
><br>
> The compress ratio was only 1.02x - 1.03x so it's no great loss on this<br>
> data. I just thought the 100MB/sec speed limit was interesting.<br>
<br>
</div></div>Try setting compression=lz4. It should perform much, much better than<br>
lzjb on incompressible data.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Saso<br>
_______________________________________________<br>
OmniOS-discuss mailing list<br>
<a href="mailto:OmniOS-discuss@lists.omniti.com">OmniOS-discuss@lists.omniti.com</a><br>
<a href="http://lists.omniti.com/mailman/listinfo/omnios-discuss" rel="noreferrer" target="_blank">http://lists.omniti.com/mailman/listinfo/omnios-discuss</a><br>
</font></span></blockquote></div><br></div>
`