On Apr 2, 2012, at 3:04 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Seems like basically what you've proven is that this code path *is* a
> performance issue, and that we need to think a bit harder about how to
> avoid doing the fsync while holding locks.

Hmm, good idea. I wonder if we couldn't just hand off the fsync request to the 
background writer, as we do with buffer fsync requests.  AFAICS we don't need 
the fsync to happen right away; the next checkpoint cycle should be soon enough.

...Robert
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