From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 9/9] Scheduler profiling - Use conditional calls
Date: Thu, 31 May 2007 17:12:58 -0400 [thread overview]
Message-ID: <20070531211258.GB904@Krystal> (raw)
In-Reply-To: <20070530205927.GE6909@holomorphy.com>
* William Lee Irwin III (wli@holomorphy.com) wrote:
> On Wed, May 30, 2007 at 10:00:34AM -0400, Mathieu Desnoyers wrote:
> > Use conditional calls with lower d-cache hit in optimized version as a
> > condition for scheduler profiling call.
> [...]
> > + if (prof_on)
> > + BUG_ON(cond_call_arm("profile_on"));
>
> What's the point of this BUG_ON()? The condition is a priori impossible.
>
Not impossible: hash_add_cond_call() can return -ENOMEM if kmalloc lacks
memory.
Mathieu
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next prev parent reply other threads:[~2007-05-31 21:13 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-30 14:00 [patch 0/9] Conditional Calls - for 2.6.22-rc2-mm1 Mathieu Desnoyers
2007-05-30 14:00 ` [patch 1/9] Conditional Calls - Architecture Independent Code Mathieu Desnoyers
2007-05-30 20:32 ` Andrew Morton
2007-05-31 16:34 ` Mathieu Desnoyers
2007-05-31 13:47 ` Andi Kleen
2007-06-05 18:40 ` Mathieu Desnoyers
2007-06-04 19:01 ` Adrian Bunk
2007-06-13 15:57 ` Mathieu Desnoyers
2007-06-13 21:51 ` Adrian Bunk
2007-06-14 16:02 ` Mathieu Desnoyers
2007-06-14 21:06 ` Adrian Bunk
2007-06-20 21:59 ` Mathieu Desnoyers
2007-06-21 13:00 ` Adrian Bunk
2007-06-21 13:55 ` Mathieu Desnoyers
2007-05-30 14:00 ` [patch 2/9] Conditional Calls - Hash Table Mathieu Desnoyers
2007-05-30 20:32 ` Andrew Morton
2007-05-31 13:42 ` Andi Kleen
2007-06-01 16:08 ` Matt Mackall
2007-06-01 16:46 ` Mathieu Desnoyers
2007-06-01 17:07 ` Matt Mackall
2007-06-01 17:45 ` Andi Kleen
2007-06-01 18:06 ` Mathieu Desnoyers
2007-06-01 18:49 ` Matt Mackall
2007-06-01 19:35 ` Andi Kleen
2007-06-01 20:33 ` Mathieu Desnoyers
2007-06-01 20:44 ` Andi Kleen
2007-06-04 22:26 ` Mathieu Desnoyers
2007-06-01 18:03 ` Mathieu Desnoyers
2007-05-30 14:00 ` [patch 3/9] Conditional Calls - Non Optimized Architectures Mathieu Desnoyers
2007-05-30 14:00 ` [patch 4/9] Conditional Calls - Add kconfig menus Mathieu Desnoyers
2007-05-30 14:00 ` [patch 5/9] Conditional Calls - i386 Optimization Mathieu Desnoyers
2007-05-30 20:33 ` Andrew Morton
2007-05-31 13:54 ` Andi Kleen
2007-06-05 19:02 ` Mathieu Desnoyers
2007-05-30 14:00 ` [patch 6/9] Conditional Calls - PowerPC Optimization Mathieu Desnoyers
2007-05-30 14:00 ` [patch 7/9] Conditional Calls - Documentation Mathieu Desnoyers
2007-05-30 14:00 ` [patch 8/9] F00F bug fixup for i386 - use conditional calls Mathieu Desnoyers
2007-05-30 20:33 ` Andrew Morton
2007-05-31 21:07 ` Mathieu Desnoyers
2007-05-31 21:21 ` Andrew Morton
2007-05-31 21:38 ` Mathieu Desnoyers
2007-05-30 14:00 ` [patch 9/9] Scheduler profiling - Use " Mathieu Desnoyers
2007-05-30 20:34 ` Andrew Morton
2007-06-01 15:54 ` Mathieu Desnoyers
2007-06-01 16:19 ` Andrew Morton
2007-06-01 16:33 ` Mathieu Desnoyers
2007-05-30 20:59 ` William Lee Irwin III
2007-05-31 21:12 ` Mathieu Desnoyers [this message]
2007-05-31 23:41 ` William Lee Irwin III
2007-06-04 22:20 ` Mathieu Desnoyers
2007-05-30 21:44 ` Matt Mackall
2007-05-31 21:36 ` Mathieu Desnoyers
2007-05-31 13:39 ` Andi Kleen
2007-05-31 22:07 ` Mathieu Desnoyers
2007-05-31 22:33 ` Andi Kleen
2007-06-04 22:20 ` Mathieu Desnoyers
-- strict thread matches above, loose matches on Subject: below --
2007-05-29 18:33 [patch 0/9] Conditional Calls Mathieu Desnoyers
2007-05-29 18:34 ` [patch 9/9] Scheduler profiling - Use conditional calls Mathieu Desnoyers
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