From: Valdis.Kletnieks@vt.edu
To: Ankita Garg <ankita@in.ibm.com>
Cc: linux-mm@kvack.org, svaidy@linux.vnet.ibm.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/5] mm,debug: VM framework to capture memory reference pattern
Date: Tue, 05 Jul 2011 19:33:24 -0400 [thread overview]
Message-ID: <64797.1309908804@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Tue, 05 Jul 2011 13:52:34 +0530." <1309854159-8277-1-git-send-email-ankita@in.ibm.com>
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On Tue, 05 Jul 2011 13:52:34 +0530, Ankita Garg said:
> by default) and scans through all pages of the specified tasks (including
> children/threads) running in the system. If the hardware reference bit in the
> page table is set, then the page is marked as accessed over the last sampling
> interval and the reference bit is cleared.
Does that cause any issues for other code in the mm subsystem that was
expecting to use the reference bit for something useful? (Similarly, if other
code in mm turns that bit *off* for its own reasons, does your code still
produce useful results?)
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next prev parent reply other threads:[~2011-07-05 23:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-05 8:22 Ankita Garg
2011-07-05 8:22 ` [PATCH 1/5] Core kernel backend to capture the " Ankita Garg
2011-07-05 8:22 ` [PATCH 2/5] memref module to walk the process page table Ankita Garg
2011-07-05 8:22 ` [PATCH 3/5] Capture kernel memory references Ankita Garg
2011-07-05 8:22 ` [PATCH 4/5] Capture references to page cache pages Ankita Garg
2011-07-05 8:22 ` [PATCH 5/5] Logging the captured reference data Ankita Garg
2011-07-05 23:33 ` Valdis.Kletnieks [this message]
2011-07-06 4:27 ` [PATCH 0/5] mm,debug: VM framework to capture memory reference pattern Ankita Garg
2011-07-06 9:01 ` Andrew Morton
2011-07-06 9:31 ` Ankita Garg
2011-07-06 13:36 ` Matt Mackall
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