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.
On Mon, Sep 14, 2015 at 3:08 PM, Saso Kiselkov <[email protected]> wrote: > On 9/14/15 9:05 PM, Doug Hughes wrote: > > Probably something for Illumos, but you guys may have seen this or may > > like to know. > > > > I've got a 10g connected Xyratex box running OmniOS, and I noticed that > > no matter how many streams (1, 2, 3) I only get 100MB/sec write > > throughput and it just tops out. Even with 1 stream. This is with the > > default lzjb compression on (fast option). > > > > I turned off compression and have 2 streams running now and am getting > > about 250-600MB/sec in aggregate. Much better! > > > > The compress ratio was only 1.02x - 1.03x so it's no great loss on this > > data. I just thought the 100MB/sec speed limit was interesting. > > Try setting compression=lz4. It should perform much, much better than > lzjb on incompressible data. > > -- > Saso > _______________________________________________ > OmniOS-discuss mailing list > [email protected] > http://lists.omniti.com/mailman/listinfo/omnios-discuss >
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