>>>>> "ag" == Andrew Gabriel <agabr...@opensolaris.org> writes:
ag> I can't speak for qmail which I've never used, but MTA's
ag> should sync data to disk before acknowledging receipt,
yeah, I saw a talk by one of the Postfix developers. They've taken
pains to limit the amount of sync'ing so it's only one or two calls to
fsync (on files in the queue subdirectories) per incoming mail (I
forget whether it's one or two). One of their performance advices was
to be careful of syslog because some implementations call fsync on
every line logged which will add a couple more sync's per message
received and halve performance. I'm sure qmail also sync's at least
once per message received.
pgptuvIN0ooQx.pgp
Description: PGP signature
_______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
