Re: [Dovecot] How to get rid of locks

On Sat, Apr 07, 2007 at 10:30:25PM +0300, Timo Sirainen wrote:

I just figured out that O_APPEND is pretty great. If the operating
system updates seek position after writing to a file opened with
O_APPEND, writes to Dovecot's transaction log file can be made
lockless. I see that this works with Linux and Solaris, but not with
OS X. Could you BSD people try if it works there? http://dovecot.org/ tmp/append.c and see if it says "offset = 0" (bad) or non-zero (yay).

FreeBSD 5.2: 5,10,15 etc, so yay ancient BSD/OS: ditto [my FreeBSD 6.2 system is unavailable at the moment, but I can't imagine that they broke it there]

mm