From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
To: Dave Hansen <dave@sr71.net>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] mm: vmstats: tlb flush counters
Date: Wed, 17 Jul 2013 07:36:32 +0800 [thread overview]
Message-ID: <20130716233632.GD30164@hacker.(null)> (raw)
In-Reply-To: <20130716155304.AF1A88F8@viggo.jf.intel.com>
On Tue, Jul 16, 2013 at 08:53:04AM -0700, Dave Hansen wrote:
>I was investigating some TLB flush scaling issues and realized
>that we do not have any good methods for figuring out how many
>TLB flushes we are doing.
>
>It would be nice to be able to do these in generic code, but the
>arch-independent calls don't explicitly specify whether we
>actually need to do remote flushes or not. In the end, we really
>need to know if we actually _did_ global vs. local invalidations,
>so that leaves us with few options other than to muck with the
>counters from arch-specific code.
>
>Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
>
There is no context in the patch?
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next prev parent reply other threads:[~2013-07-16 23:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-16 15:53 [PATCH] mm: vmstats: tlb flush counters Dave Hansen
2013-07-16 15:53 ` Dave Hansen
2013-07-16 23:36 ` Wanpeng Li
2013-07-16 23:36 ` Wanpeng Li [this message]
2013-07-16 23:43 ` Dave Hansen
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