From: Con Kolivas <kernel@kolivas.org>
To: Peter Williams <pwil3058@bigpond.net.au>
Cc: "Martin J. Bligh" <mbligh@google.com>,
Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
Andy Whitcroft <apw@shadowen.org>,
Nick Piggin <nickpiggin@yahoo.com.au>
Subject: Re: -mm seems significanty slower than mainline on kernbench
Date: Sun, 15 Jan 2006 13:04:50 +1100 [thread overview]
Message-ID: <200601151304.52345.kernel@kolivas.org> (raw)
In-Reply-To: <43C991D0.3040808@bigpond.net.au>
On Sunday 15 January 2006 11:05, Peter Williams wrote:
> Martin J. Bligh wrote:
> >> Attached is a new patch to fix the excessive idle problem. This patch
> >> takes a new approach to the problem as it was becoming obvious that
> >> trying to alter the load balancing code to cope with biased load was
> >> harder than it seemed.
> >>
> >> This approach reverts to the old load values but weights them
> >> according to tasks' bias_prio values. This means that any assumptions
> >> by the load balancing code that the load generated by a single task is
> >> SCHED_LOAD_SCALE will still hold. Then, in find_busiest_group(), the
> >> imbalance is scaled back up to bias_prio scale so that move_tasks()
> >> can move biased load rather than tasks.
> >
> > OK, this one seems to fix the issue that I had, AFAICS. Congrats, and
> > thanks,
>
> Terrific, thanks for testing.
>
> Con,
> Attached is a cleaned up version of this patch against 2.6.15-mm4 with
> some (hopefully helpful) comments added.
Great! Well done.
> Signed-off-by: Peter Williams <pwil3058@bigpond.com.au>
Acked-by: Con Kolivas <kernel@kolivas.org>
next prev parent reply other threads:[~2006-01-15 2:05 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-11 1:14 -mm seems significanty slower than mainline on kernbench Martin Bligh
2006-01-11 1:31 ` Andrew Morton
2006-01-11 1:41 ` Martin Bligh
2006-01-11 1:48 ` Andrew Morton
2006-01-11 1:49 ` Con Kolivas
2006-01-11 2:38 ` Peter Williams
2006-01-11 3:07 ` Con Kolivas
2006-01-11 3:12 ` Martin Bligh
2006-01-11 3:40 ` Peter Williams
2006-01-11 3:49 ` Con Kolivas
2006-01-11 4:33 ` Peter Williams
2006-01-11 5:14 ` Peter Williams
2006-01-11 6:21 ` Martin J. Bligh
2006-01-11 12:24 ` Peter Williams
2006-01-11 14:29 ` Con Kolivas
2006-01-11 22:05 ` Peter Williams
2006-01-12 0:54 ` Peter Williams
2006-01-12 1:18 ` Con Kolivas
2006-01-12 1:29 ` Peter Williams
2006-01-12 1:36 ` Con Kolivas
2006-01-12 2:23 ` Peter Williams
2006-01-12 2:26 ` Martin Bligh
2006-01-12 6:39 ` Con Kolivas
2006-01-23 19:28 ` Martin Bligh
2006-01-24 1:25 ` Peter Williams
2006-01-24 3:50 ` Peter Williams
2006-01-24 4:41 ` Martin J. Bligh
2006-01-24 6:22 ` Peter Williams
2006-01-24 6:42 ` Martin J. Bligh
2006-01-28 23:20 ` Peter Williams
2006-01-29 0:52 ` Martin J. Bligh
2006-01-12 2:27 ` Con Kolivas
2006-01-12 2:04 ` Martin Bligh
2006-01-12 6:35 ` Martin J. Bligh
2006-01-12 6:41 ` Con Kolivas
2006-01-12 6:54 ` Peter Williams
2006-01-12 18:39 ` Martin Bligh
2006-01-12 20:03 ` Peter Williams
2006-01-12 22:20 ` Peter Williams
2006-01-13 7:06 ` Peter Williams
2006-01-13 12:00 ` Peter Williams
2006-01-13 16:15 ` Martin J. Bligh
2006-01-13 16:26 ` Andy Whitcroft
2006-01-13 17:54 ` Andy Whitcroft
2006-01-13 20:41 ` Martin Bligh
2006-01-14 0:23 ` Peter Williams
2006-01-14 5:03 ` Nick Piggin
2006-01-14 5:40 ` Con Kolivas
2006-01-14 6:05 ` Nick Piggin
2006-01-14 5:53 ` Peter Williams
2006-01-14 6:13 ` Nick Piggin
2006-01-13 22:59 ` Peter Williams
2006-01-14 18:48 ` Martin J. Bligh
2006-01-15 0:05 ` Peter Williams
2006-01-15 2:04 ` Con Kolivas [this message]
2006-01-15 2:09 ` [PATCH] sched - remove unnecessary smpnice ifdefs Con Kolivas
2006-01-15 3:50 ` -mm seems significanty slower than mainline on kernbench Ingo Molnar
2006-01-12 1:25 ` Peter Williams
2006-01-11 1:52 ` Andrew Morton
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