On 5 September 2013 22:24, Bruce Momjian <br...@momjian.us> wrote: > On Mon, Aug 19, 2013 at 09:27:57PM -0400, Stephen Frost wrote: >> * Andres Freund (and...@2ndquadrant.com) wrote: >> > I vote for adapting the patch to additionally zero out the file via >> > write(). In your tests that seemed to perform at least as good as the >> > old method... It also has the advantage that we can use it a littlebit >> > more as a testbed for possibly using it for heap extensions one day. >> > We're pretty early in the cycle, so I am not worried about this too much... >> >> I dunno, I'm pretty disappointed that this doesn't actually improve >> things. Just following this casually, it looks like it might be some >> kind of locking issue in the kernel that's causing it to be slower; or >> at least some code path that isn't exercise terribly much and therefore >> hasn't been given the love that it should. >> >> Definitely interested in what Ts'o says, but if we can't figure out why >> it's slower *without* writing out the zeros, I'd say we punt on this >> until Linux and the other OS folks improve the situation. > > FYI, the patch has been reverted.
Is there an updated patch available for this? And did anyone hear from Ts'o? -- Thom -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
