linux-kernel - Re: [PATCH 1/4] perf, x86: Avoid checkpointed counters causing excessive TSX aborts v4

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Message-ID: <20130831154223.GD19750@two.firstfloor.org>
Date:	Sat, 31 Aug 2013 17:42:23 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Andi Kleen <ak@...ux.intel.com>, Andi Kleen <andi@...stfloor.org>,
	mingo@...nel.org, acme@...radead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] perf, x86: Avoid checkpointed counters causing
 excessive TSX aborts v4

> > So can just drop the XXX comment. Ok?
> 
> How about hiding the entire thing in a hsw function. I'm fairly sure
> that eventually we'll need to check all counters for this nonsense.

AFAIK there are no plans to do so.

> 
> Something like so perhaps?

It's ok for me, except it's not for TSX (that's intx), but only for
intx_checkpointed.

Should I send a new patch?

-Andi
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