Re: [PATCH] Using pread instead of lseek (with analysis)

"Martijn van Oosterhout" <kleptog@svana.org> wrote
>
> Below is a patch that tries to determine (for linux) if the pread is
> emulated or not (using an autoconf test), and if so use it instead of
> lseek.

Just FYI, this was proposed 2 years ago:

http://archives.postgresql.org/pgsql-patches/2003-02/msg00197.php

The basic problem I read from the above thread is that it does not give
enough performance proofs on *various* platforms.

Regards,
Qingqing