Note that Stephen is the author of the Procmail and SmartList programs (which operate our list server). Turning off the fsync is indeed a big win on a machine that operates mailing list. There may be 4 syslog() calls for each subscriber every time a message goes to a mailing list. This ends up being continuous disk rattling.
This switch solves the immediate problem, but making a way to tune this in syslog.conf would be even nicer. Thanks Bruce -- See Pixar's "Toy Story", at a theater near you starting November 22. "Toy Story" Toys and Soundtrack Album are available now!