From: Christoph Lameter <cl@linux-foundation.org>
To: Andrea Arcangeli <andrea@qumranet.com>
Cc: Nick Piggin <npiggin@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>,
linux-arch@vger.kernel.org, steiner@sgi.com
Subject: Re: MMU notifiers review and some proposals
Date: Wed, 30 Jul 2008 10:42:12 -0500 [thread overview]
Message-ID: <48908BD4.10408@linux-foundation.org> (raw)
In-Reply-To: <20080730145436.GJ11494@duo.random>
Andrea Arcangeli wrote:
> I think the current implementation is fine for the long run, it can
> provide the fastest performance when armed, and each invalidate either
> requires IPIs or it may may need to access the southbridge, so when
> freeing large areas of memory it's good being able to do a single
> invalidate.
Right. A couple of months ago we had this discussion and agreed that the begin / end was the way to go. I still support that decision.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Lameter <cl@linux-foundation.org>
To: Andrea Arcangeli <andrea@qumranet.com>
Cc: Nick Piggin <npiggin@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>,
linux-arch@vger.kernel.org, steiner@sgi.com
Subject: Re: MMU notifiers review and some proposals
Date: Wed, 30 Jul 2008 10:42:12 -0500 [thread overview]
Message-ID: <48908BD4.10408@linux-foundation.org> (raw)
In-Reply-To: <20080730145436.GJ11494@duo.random>
Andrea Arcangeli wrote:
> I think the current implementation is fine for the long run, it can
> provide the fastest performance when armed, and each invalidate either
> requires IPIs or it may may need to access the southbridge, so when
> freeing large areas of memory it's good being able to do a single
> invalidate.
Right. A couple of months ago we had this discussion and agreed that the begin / end was the way to go. I still support that decision.
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next prev parent reply other threads:[~2008-07-30 15:42 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-24 14:39 MMU notifiers review and some proposals Nick Piggin
2008-07-24 14:39 ` Nick Piggin
2008-07-24 14:39 ` Nick Piggin
2008-07-25 21:45 ` Andrea Arcangeli
2008-07-25 21:45 ` Andrea Arcangeli
2008-07-26 3:08 ` Nick Piggin
2008-07-26 3:08 ` Nick Piggin
2008-07-26 11:38 ` Andrea Arcangeli
2008-07-26 11:38 ` Andrea Arcangeli
2008-07-26 12:28 ` Nick Piggin
2008-07-26 12:28 ` Nick Piggin
2008-07-26 13:02 ` Andrea Arcangeli
2008-07-26 13:02 ` Andrea Arcangeli
2008-07-26 13:10 ` Nick Piggin
2008-07-26 13:10 ` Nick Piggin
2008-07-26 13:35 ` Andrea Arcangeli
2008-07-26 13:35 ` Andrea Arcangeli
2008-07-27 12:25 ` Nick Piggin
2008-07-27 12:25 ` Nick Piggin
2008-07-26 13:14 ` Nick Piggin
2008-07-26 13:14 ` Nick Piggin
2008-07-26 13:49 ` Andrea Arcangeli
2008-07-26 13:49 ` Andrea Arcangeli
2008-07-27 12:32 ` Nick Piggin
2008-07-27 12:32 ` Nick Piggin
2008-07-30 14:19 ` Christoph Lameter
2008-07-30 14:19 ` Christoph Lameter
2008-07-30 14:54 ` Andrea Arcangeli
2008-07-30 14:54 ` Andrea Arcangeli
2008-07-30 15:42 ` Christoph Lameter [this message]
2008-07-30 15:42 ` Christoph Lameter
2008-07-31 6:14 ` Nick Piggin
2008-07-31 6:14 ` Nick Piggin
2008-07-31 14:19 ` Christoph Lameter
2008-07-31 14:19 ` Christoph Lameter
2008-07-26 12:33 ` Nick Piggin
2008-07-26 12:33 ` Nick Piggin
2008-07-26 13:04 ` Nick Piggin
2008-07-26 13:04 ` Nick Piggin
2008-07-26 13:16 ` Andrea Arcangeli
2008-07-26 13:16 ` Andrea Arcangeli
2008-07-27 12:08 ` Nick Piggin
2008-07-27 12:08 ` Nick Piggin
2008-07-25 23:29 ` Jack Steiner
2008-07-25 23:29 ` Jack Steiner
2008-07-26 3:18 ` Nick Piggin
2008-07-26 3:18 ` Nick Piggin
2008-07-27 9:45 ` Andrew Morton
2008-07-27 9:45 ` Andrew Morton
2008-07-27 12:38 ` Nick Piggin
2008-07-27 12:38 ` Nick Piggin
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