site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com John Francini On Apr 6, 2005, at 14:26, Charles Jolley wrote: Hi: Thanks! -Charles _______________________________________________ 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/francini%40mac.com _______________________________________________ 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... Scanning through files with fstat(2) will indeed fill up the cache, but this should only cause slowdowns, not failures. Failures imply that something else is going wrong: the system can't expand virtual memory enough and it's killing processes instead, or (more likely) the high activity level is exercising a problem with your memory. You haven't done anything like re-locate the swapfile to a separate partition or changed the arguments to dynamic_pager? Also, does this occur on more than one Mac? If so (and if the other Mac(s) are stock), it's probably an OS bug. Nothing that an unprivileged user can do (aside from filling up the filesystem) should cause other processes to crash. I have a little command line utility that scans through some files, calling fstat on each of them. The problem is when I test this with a large number of files (about 180,000), I start having problems thoughout my system while the scan in running. Copying files in the Finder will sometimes fail; apps will die while accessing files and so on. Even the scanner's stat calls will failnow and then. I suspect the problem is that my scanner is exhausting the file caches or something like that causing file system calls to fail. But I'm not sure. Has anyone else run into this kind of problem? Do you know why a tight loop calling fstat on files would be causing this problem? What is the best way to fix this? I could sleep() between calls I suppose, but I would like to make this as fast as possible. This email sent to francini@mac.com This email sent to site_archiver@lists.apple.com