Hey Brian - For Solaris 9 and 10 (and optionally in Solaris 8), the thread model is 1 level - all user threads are essentially "bound" threads, with a corresponding LWP/kthread. As such, they are simply scheduled by the kernel based on their scheduling class and global priority.
If your question is on unbound threads (Solaris 8 default thread lib and earlier) let us know. That's a much more involved answer, but the summary statement is a libthread used to have its own scheduler, responsible for scheduling user threads on LWPs. I wrote about how this works many years ago in a SunWorld column, and I think they're online somewhere (but I need to look around). Thanks, /jim Brian Gupta wrote: > Is there a "How user threads are scheduled across LWP/kthreads." for > dummies doc floating around? Or possibly a "How does the user thread > library decide how many LWPs to spawn for a given process" doc? > > Thanks, > Brian > > P.S. - Forgive me if this is the wrong mailing list.. > ------------------------------------------------------------------------ > > _______________________________________________ > perf-discuss mailing list > perf-discuss@opensolaris.org > _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
