site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com So, how do I go about starting a low priority thread? Is there another bsd_timeout() like function? o Mach exports kernel_thread_start o I/O Kit exports IOCreateThread S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ 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... At 9:53 -0500 12/12/06, Curtis Jones wrote: I'm not sure what the /best/ answer to this is. However, an answer that will work (probably :-) is to start a new kernel thread and then explicitly set its priority using thread_policy_set. You can start kernel threads in a variety of ways. Which you should use depends on the environment you're working in. If you're knee deep in I/O Kit, IOCreateThread would be best. If you're just using BSD, the Mach routine would be best. Be careful to avoid KPIs where you don't exclusively own the underlying thread (like bsd_timeout and the thread call KPI </kern/thread_call.h>). Changing the priority on system threads is not a good idea. This email sent to site_archiver@lists.apple.com