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From: Nick Piggin <piggin@cyberone.com.au>
To: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@osdl.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/5] 2.6.0 sched migrate comment
Date: Sun, 21 Dec 2003 10:19:18 +1100	[thread overview]
Message-ID: <3FE4D8F6.60100@cyberone.com.au> (raw)
In-Reply-To: <20031220202611.GB32320@elte.hu>



Ingo Molnar wrote:

>* Nick Piggin <piggin@cyberone.com.au> wrote:
>
>  
>
>>Some comments were lost during minor surgery here...
>>    
>>
>
>this patch collides with John Hawkes' sched_clock() fix-patch which goes
>in first. Also, the patch does more than just comment fixups. It changes
>the order of tests, where a bug slipped in:
>
>+       if (!idle && (delta <= cache_decay_ticks))
>
>This will cause the cache-hot test to almost never trigger, which is
>clearly incorrect. The correct test is:
>
>        if (!idle && (delta <= JIFFIES_TO_NS(cache_decay_ticks)))
>
>anyway, i've fixed it all up (patch attached).
>  
>

Yep, thanks again.



  reply	other threads:[~2003-12-20 23:19 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-20 15:19 [PATCH 1/5] 2.6.0 fix preempt ctx switch accounting Nick Piggin
2003-12-20 15:20 ` [PATCH 2/5] 2.6.0 sched fork cleanup Nick Piggin
2003-12-20 15:21   ` [PATCH 3/5] 2.6.0 sched migrate comment Nick Piggin
2003-12-20 15:22     ` [PATCH 4/5] 2.6.0 sched style fixes Nick Piggin
2003-12-20 15:24       ` [PATCH 5/5] 2.6.0 sched affinity race Nick Piggin
2003-12-20 21:07       ` [PATCH 4/5] 2.6.0 sched style fixes Ingo Molnar
2003-12-20 20:26     ` [PATCH 3/5] 2.6.0 sched migrate comment Ingo Molnar
2003-12-20 23:19       ` Nick Piggin [this message]
2003-12-20 19:55   ` [PATCH 2/5] 2.6.0 sched fork cleanup Ingo Molnar
2003-12-20 23:17     ` Nick Piggin
2003-12-20 19:22 ` [PATCH 1/5] 2.6.0 fix preempt ctx switch accounting Ingo Molnar
2003-12-20 19:52   ` Rob Love
2003-12-20 20:07   ` Linus Torvalds
2003-12-20 21:32     ` Ingo Molnar
2003-12-20 23:15     ` Nick Piggin

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