Re: Spread checkpoint sync

Michael Banck wrote:
> On Sat, Jan 15, 2011 at 05:47:24AM -0500, Greg Smith wrote:
>
>> For example, the pre-release Squeeze numbers we're seeing are awful so
>> far, but it's not really done yet either.
>>
>
> Unfortunately, it does not look like Debian squeeze will change any more
> (or has changed much since your post) at this point, except for maybe
> further stable kernel updates.
>
> Which file system did you see those awful numbers on and could you maybe
> go into some more detail?
>

Once the release comes out any day now I'll see if I can duplicate them
on hardware I can talk about fully, and share the ZCAV graphs if it's
still there. The server I've been running all of the extended pgbench
tests in this thread on is running Ubuntu simply as a temporary way to
get 2.6.32 before Squeeze ships. Last time I tried installing one of
the Squeeze betas I didn't get anywhere; hoping the installer bug I ran
into has been sorted when I try again.

--
Greg Smith 2ndQuadrant US greg(at)2ndQuadrant(dot)com Baltimore, MD
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