Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu access

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To: Matthew Wilcox <matthew@...>

Cc: Mike Travis <travis@...>, Andrew Morton <akpm@...>, <linux-arch@...>, <linux-kernel@...>, David Miller <davem@...>, Eric Dumazet <dada1@...>, Peter Zijlstra <peterz@...>, Rusty Russell <rusty@...>

Subject: Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu access

Date: Friday, May 30, 2008 - 2:12 pm

On Fri, 30 May 2008, Matthew Wilcox wrote:

quoted text> On Fri, May 30, 2008 at 10:50:04AM -0700, Christoph Lameter wrote:
> > cpu alloc v2 had an extendable per cpu space. You have the patches. We 
> > could put this on top of this patchset if necessary. But then it not so 
> > nice and simple anymore. Maybe we can rstrict the use of cpu alloc 
> > instead to users with objects < cache_line_size() or so?
> 
> Restricting the use of cpu_alloc based on size of object is no good when
> you're trying to allocate 45,000 objects.  Extending the per CPU space
> is the only option.

Ok guess we need to bring the virtually mapped per cpu patches forward.

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Messages in current thread:

[patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu access, Christoph Lameter, (Thu May 29, 11:56 pm)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Andrew Morton, (Fri May 30, 12:58 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Mike Travis, (Wed Jun 4, 11:07 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Eric Dumazet, (Fri Jun 6, 1:33 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Christoph Lameter, (Mon Jun 9, 2:44 pm)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Andi Kleen, (Mon Jun 9, 3:11 pm)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Eric Dumazet, (Mon Jun 9, 4:15 pm)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Rusty Russell, (Sun Jun 8, 2:00 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Mike Travis, (Fri Jun 6, 9:08 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Christoph Lameter, (Fri May 30, 1:03 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Andrew Morton, (Fri May 30, 1:21 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Christoph Lameter, (Fri May 30, 1:27 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Mike Travis, (Fri May 30, 10:38 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Christoph Lameter, (Fri May 30, 1:50 pm)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Matthew Wilcox, (Fri May 30, 2:00 pm)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Christoph Lameter, (Fri May 30, 2:12 pm)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Andrew Morton, (Fri May 30, 1:49 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Christoph Lameter, (Fri May 30, 2:16 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., KAMEZAWA Hiroyuki, (Fri May 30, 2:51 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Eric Dumazet, (Fri May 30, 2:01 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Andrew Morton, (Fri May 30, 2:16 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Christoph Lameter, (Fri May 30, 2:22 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Andrew Morton, (Fri May 30, 2:37 am)

Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu a..., Matthew Wilcox, (Fri May 30, 7:32 am)

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