site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com TIA - Richard _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... I'm using the "fs_usage" utility to help me optimize my application's I/O calls, and I see a lot of events labeled "CACHE_HIT". Could someone explain what these are? (VM paging? File System caching?) Sorry about the novice question, but I can't seem to figure it out from the man page, and most of the Google hits I find describe how to filter these lines out (which is fine, but the anal engineer in me wants to know why... ;-) This email sent to site_archiver@lists.apple.com