Messages in this thread | | | Date | Fri, 12 Dec 2003 02:51:32 +1100 | From | Nick Piggin <> | Subject | Re: [CFT][RFC] HT scheduler |
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William Lee Irwin III wrote:
>William Lee Irwin III wrote: > >>>Volano is all one process address space so it could be ->page_table_lock; >>>any chance you could find which spin_lock() call the pounded chunk of the >>>lock section jumps back to? >>> > >On Fri, Dec 12, 2003 at 02:30:27AM +1100, Nick Piggin wrote: > >>OK its in futex_wait, up_read(¤t->mm->mmap_sem) right after >>out_release_sem (line 517). >>So you get half points. Looks like its waiting on the bus rather than >>spinning on a lock. Or am I'm wrong? >> > >There is a spinloop in __up_read(), which is probably it. >
Oh I see - in rwsem_wake?
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