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From: "Stephen C. Tweedie" <sct@redhat.com>
To: lord@sgi.com
Cc: "Benjamin C.R. LaHaise" <blah@kvack.org>,
	David Woodhouse <dwmw2@infradead.org>,
	linux-kernel@vger.rutgers.edu, linux-mm@kvack.org
Subject: Re: kmap_kiobuf()
Date: Wed, 28 Jun 2000 19:06:12 +0100	[thread overview]
Message-ID: <20000628190612.E2392@redhat.com> (raw)
In-Reply-To: <200006281652.LAA19162@jen.americas.sgi.com>; from lord@sgi.com on Wed, Jun 28, 2000 at 11:52:40AM -0500

Hi,

On Wed, Jun 28, 2000 at 11:52:40AM -0500, lord@sgi.com wrote:
> 
> I am not a VM guy either, Ben, is the cost of the TLB flush mostly in
> the synchronization between CPUs, or is it just expensive anyway you
> look at it?

The TLB IPI is by far the biggest factor here.

--Stephen
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  reply	other threads:[~2000-06-28 18:06 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-06-28 16:52 kmap_kiobuf() lord
2000-06-28 18:06 ` Stephen C. Tweedie [this message]
2000-06-28 19:06   ` kmap_kiobuf() Manfred Spraul
2000-06-28 21:05   ` kmap_kiobuf() Andi Kleen
  -- strict thread matches above, loose matches on Subject: below --
2000-06-28 20:16 kmap_kiobuf() lord
2000-06-28 21:22 ` kmap_kiobuf() Benjamin C.R. LaHaise
2000-06-29  9:34 ` kmap_kiobuf() Stephen C. Tweedie
2000-06-29 13:45   ` kmap_kiobuf() Steve Lord
2000-06-28 15:54 kmap_kiobuf() lord
2000-06-28 16:06 ` kmap_kiobuf() David Woodhouse
2000-06-28 16:24   ` kmap_kiobuf() Benjamin C.R. LaHaise
2000-06-28 18:07   ` kmap_kiobuf() Stephen C. Tweedie
2000-06-28 18:45     ` kmap_kiobuf() David Woodhouse
2000-06-29  9:09       ` kmap_kiobuf() Stephen C. Tweedie
2000-06-28 17:46 ` kmap_kiobuf() Stephen C. Tweedie
2000-06-28 15:41 kmap_kiobuf() David Woodhouse
2000-06-28 17:44 ` kmap_kiobuf() Stephen C. Tweedie
2000-06-29 10:52 ` kmap_kiobuf() Stephen C. Tweedie

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