On Tue, 2013-07-02 at 02:13 +0900, Fujii Masao wrote: > Even in that case, if a user can easily know which platform posix_fallocate > should be used in, we can commit the patch with the configurable GUC > parameter.
I disagree here. We're not talking about a huge win; this speedup may not even be detectable on a running system. I think Robert summarized the reason for the patch best: "I mean, if posix_fallocate() is faster, then it's just faster, right?". But if we need a new GUC, and DBAs now have one more thing they need to test about their platform, then that argument goes out the window. Regards, Jeff Davis -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers