Re: [PATCH] mm: remove global locks from mm/highmem.c

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To: Ingo Molnar <mingo@...>

Cc: Christoph Hellwig <hch@...>, Peter Zijlstra <a.p.zijlstra@...>, <linux-kernel@...>, <linux-mm@...>, Andrew Morton <akpm@...>

Subject: Re: [PATCH] mm: remove global locks from mm/highmem.c

Date: Sunday, January 28, 2007 - 11:28 am

On Sun, Jan 28, 2007 at 04:17:00PM +0100, Ingo Molnar wrote:
quoted text> scalability. I did lock profiling on the -rt kernel, which exposes such 
> things nicely. Half of the lock contention events during kernel compile 
> were due to kmap(). (The system had 2 GB of RAM, so 40% lowmem, 60% 
> highmem.)

Numbers please, and not on -rt but on mainline.  Please show the profiles.

quoted text> ps. please fix your mailer to not emit Mail-Followup-To headers. In Mutt
>     you can do this via "set followup_to=no" in your .muttrc.

I have told you last time that this is absolutely intentional and I won't
change it.
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Messages in current thread:

[PATCH] mm: remove global locks from mm/highmem.c, Peter Zijlstra, (Sun Jan 28, 10:11 am)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Andrew Morton, (Sun Jan 28, 6:29 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Ingo Molnar, (Mon Jan 29, 3:08 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Nick Piggin, (Mon Jan 29, 10:02 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Ingo Molnar, (Mon Jan 29, 4:06 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Hugh Dickins, (Mon Jan 29, 3:19 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Ingo Molnar, (Mon Jan 29, 3:53 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Peter Zijlstra, (Mon Jan 29, 5:44 am)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Martin J. Bligh, (Mon Jan 29, 9:31 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Andrew Morton, (Mon Jan 29, 9:41 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Martin J. Bligh, (Mon Jan 29, 9:49 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Andrew Morton, (Mon Jan 29, 10:15 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, David Chinner, (Tue Jan 30, 8:44 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Andrew Morton, (Tue Jan 30, 9:11 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, David Chinner, (Tue Jan 30, 11:22 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Christoph Hellwig, (Fri Feb 2, 8:05 am)

Re: [PATCH] mm: remove global locks from mm/highmem.c, David Chinner, (Fri Feb 2, 7:14 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Matt Mackall, (Fri Feb 2, 3:24 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, David Chinner, (Fri Feb 2, 7:16 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Nick Piggin, (Sun Jan 28, 10:52 pm)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Christoph Hellwig, (Sun Jan 28, 10:49 am)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Ingo Molnar, (Sun Jan 28, 11:17 am)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Christoph Hellwig, (Sun Jan 28, 11:28 am)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Ingo Molnar, (Sun Jan 28, 11:48 am)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Christoph Hellwig, (Sun Jan 28, 11:54 am)

Re: [PATCH] mm: remove global locks from mm/highmem.c, Ingo Molnar, (Sun Jan 28, 2:19 pm)

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