From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Stephane Eranian <eranian@google.com>,
Anton Blanchard <anton@samba.org>,
linux-kernel@vger.kernel.org, peterz@infradead.org,
mingo@elte.hu, gleb@redhat.com, wcohen@redhat.com,
vince@deater.net, asharma@fb.com, andi@firstfloor.org,
paulus@samba.org, emunson@mgebm.net, imunsie@au1.ibm.com
Subject: Re: [PATCH] perf_events: fix broken intr throttling (v3)
Date: Fri, 10 Feb 2012 17:15:19 +1100 [thread overview]
Message-ID: <1328854519.3019.3.camel@pasglop> (raw)
In-Reply-To: <20120210031930.GA28023@us.ibm.com>
On Thu, 2012-02-09 at 19:19 -0800, Sukadev Bhattiprolu wrote:
> Stephane Eranian [eranian@google.com] wrote:
> | On Wed, Feb 8, 2012 at 12:32 PM, Anton Blanchard <anton@samba.org> wrote:
> | >
> | > Hi,
> | >
> | > On Thu, 26 Jan 2012 17:03:19 +0100
> | > Stephane Eranian <eranian@google.com> wrote:
> | >
> | >> This patch fixes the throttling mechanism. It was broken
> | >> in 3.2.0. Events were not being unthrottled. The unthrottling
> | >> mechanism required that events be checked at each timer tick.
> | >
> | > This patch breaks perf on POWER. I haven't had a chance to work out why
> | > yet, but will investigate tomorrow.
> | >
> | Did you apply the subsequent patch I posted yesterday:
> |
> | https://lkml.org/lkml/2012/2/7/185
>
> I applied both patches to the powerpc.git tree - following hunk already
> exists in the powerpc tree (and even Jan 27 mainline) so I skipped this
> hunk.
The powerpc .git tree is not useful at this point, I haven't opened
powerpc -next yet so it's just all old stale stuff. Please work with
upstream always unless you have a very good reason to use my tree. It's
really only meant as a conduit between me and Linus or for -next.
Cheers,
Ben.
next prev parent reply other threads:[~2012-02-10 6:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-26 16:03 [PATCH] perf_events: fix broken intr throttling (v3) Stephane Eranian
2012-01-26 16:16 ` Peter Zijlstra
2012-01-26 18:22 ` Arun Sharma
2012-01-28 12:04 ` [tip:perf/urgent] perf: Fix broken interrupt rate throttling tip-bot for Stephane Eranian
2012-02-08 11:32 ` [PATCH] perf_events: fix broken intr throttling (v3) Anton Blanchard
2012-02-08 11:43 ` Stephane Eranian
2012-02-10 3:19 ` Sukadev Bhattiprolu
2012-02-10 6:15 ` Benjamin Herrenschmidt [this message]
2012-02-15 2:37 ` Sukadev Bhattiprolu
2012-02-19 11:26 ` Stephane Eranian
2012-02-20 19:01 ` Sukadev Bhattiprolu
2012-02-09 5:23 ` Anshuman Khandual
2012-02-09 22:45 ` Stephane Eranian
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