site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com One thing to keep in mind about MacOSX is that the sleep is *really* accurate compared to Linux, BSD and Solaris. Jonas _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... On 27 Mar 2008, at 22:25, Andrew Gallatin wrote: See http://www.dragonflybsd.org/docs/nanosleep/index.shtml And also that this is mainly because for very small delays, Darwin lets the "waiting" thread simply burn cpu cycles until the delay is over (at least when I looked into this a couple of years ago). The result is that very small delays are (were) quite inefficient from a multi-processing perspective on Darwin (with the mentioned upshot that they're pretty accurate). This email sent to site_archiver@lists.apple.com