On Wed, May 31, 2006 at 11:23:01AM -0400, John Baldwin wrote: J> Nah, that was phk's other timekeeping code to see which timeouts take a long J> time to execute. The THREAD_NO_SLEEPING() stuff was added just before 6.0 J> was released and replaced a couple of "special" mutexes that were held just J> to provoke WITNESS warnings.
To take a long time to execute one doesn't need to sleep, it can also do a lot of job. I know at least two examples of heavy callouts: dummynet and pf. Under heavy traffic both subsystems process a lot of packets during one callout. I have patches to move their job to a separate taskqueue. The dummynet patch needs some testing and the pf patch waits for Max Laier to decide what to chose: taskqueue API or kthread_create() as newest pf in OpenBSD does. -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
