[OmniOS-discuss] zfs compression limits write throughput to 100MB/sec

[Matthew Lagoe]

Also I believe the compression is not threaded as well as it could be so you
may be limited by the single core performance of your machine.

-----Original Message-----
From: OmniOS-discuss [mailto:omnios-discuss-bounces at lists.omniti.com] On
Behalf Of Saso Kiselkov
Sent: Monday, September 14, 2015 12:34 PM
To: Doug Hughes
Cc: omnios-discuss at lists.omniti.com
Subject: Re: [OmniOS-discuss] zfs compression limits write throughput to
100MB/sec

On 9/14/15 9:18 PM, Doug Hughes wrote:
> 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.

Well, that's the reality of compression. Even the compressibility check is
not free, but it's a lot less of an impact with lz4 than with lzjb.

Cheers,
--
Saso
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