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Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention in semtimedop

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From: Zach Brown
Subject: Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention in semtimedop
Date: Tuesday, April 13, 2010 - 11:24 am

> What about Zach's simpler wakeup API?

It's making slow progress in the background as a longer-term experiment.

http://oss.oracle.com/~zab/wake-many/

That URL still has an API description, patches, and little test  
utilities for the simple first draft.

- z
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Messages in current thread:
[PATCH RFC] Optimize semtimedop, Chris Mason, (Mon Apr 12, 11:49 am)
[PATCH 1/2] ipc semaphores: reduce ipc_lock contention in ..., Chris Mason, (Mon Apr 12, 11:49 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Manfred Spraul, (Tue Apr 13, 10:15 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Tue Apr 13, 10:39 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Nick Piggin, (Tue Apr 13, 11:09 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Tue Apr 13, 11:19 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Zach Brown, (Tue Apr 13, 11:24 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Nick Piggin, (Tue Apr 13, 11:57 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Tue Apr 13, 12:01 pm)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Nick Piggin, (Tue Apr 13, 12:25 pm)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Tue Apr 13, 12:38 pm)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Nick Piggin, (Tue Apr 13, 1:05 pm)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Manfred Spraul, (Wed Apr 14, 9:16 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Wed Apr 14, 10:33 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Manfred Spraul, (Wed Apr 14, 12:11 pm)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Wed Apr 14, 12:50 pm)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Manfred Spraul, (Thu Apr 15, 9:33 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Thu Apr 15, 9:34 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Manfred Spraul, (Fri Apr 16, 4:26 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Fri Apr 16, 4:45 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Manfred Spraul, (Sun May 16, 9:57 am)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Chris Mason, (Sun May 16, 3:40 pm)
Re: [PATCH 1/2] ipc semaphores: reduce ipc_lock contention ..., Nick Piggin, (Mon May 17, 12:20 am)