On Thu, May 3, 2012 at 10:39 AM, Edward Ned Harvey
<opensolarisisdeadlongliveopensola...@nedharvey.com> wrote:
>> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
>> boun...@opensolaris.org] On Behalf Of Paul Kraus
>>
>> If you have compression turned on (and I highly recommend turning
>> it on if you have the CPU power to handle it),
>
> What if he's storing video files, compressed files, or encrypted data? Then
> compression is 100% waste. So you should qualify a statement like that...
> Compression can be great, depending on the type of data to be stored. In my
> usage scenarios, I usually benefit a lot, both in terms of capacity and
> speed, by enabling compression.
Even with uncompressable data I measure better performance with
compression turned on rather than off. I have been testing with random
data that shows a compressratio of 1:1. I will test with some real
data that is already highly compressed and see if that agrees with my
prior testing.
--
{--------1---------2---------3---------4---------5---------6---------7---------}
Paul Kraus
-> Senior Systems Architect, Garnet River ( http://www.garnetriver.com/ )
-> Assistant Technical Director, LoneStarCon 3 (http://lonestarcon3.org/)
-> Sound Coordinator, Schenectady Light Opera Company (
http://www.sloctheater.org/ )
-> Technical Advisor, Troy Civic Theatre Company
-> Technical Advisor, RPI Players
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