Horton

Re: Re[4]: Allowing WAL fsync to be done via O_SYNC

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Larry Rosenman <ler@lerctr.org>
Cc: The Hermit Hacker <scrappy@hub.org>, Alfred Perlstein <bright@wintelcom.net>, Xu Yifeng <jamexu@telekbird.com.cn>, "Mikheev, Vadim" <vmikheev@SECTORBASE.COM>, Bruce Momjian <pgman@candle.pha.pa.us>, Peter Eisentraut <peter_e@gmx.net>, pgsql-hackers@postgresql.org
Date: 2001-03-16T17:36:12Z
Lists: pgsql-hackers 
Larry Rosenman <ler@lerctr.org> writes:
>> But, with shared libraries, are you really pulling in a "whole
>> thread-support library"?

> Yes, you are.  On UnixWare, you need to add -Kthread, which CHANGES a LOT 
> of primitives to go through threads wrappers and scheduling.

Right, it's not so much that we care about referencing another shlib,
it's that -lpthreads may cause you to get a whole new thread-aware
version of libc, with attendant overhead that we don't need or want.

			regards, tom lane