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Date: Fri, 30 May 2008 12:00:22 -0600 From: Matthew Wilcox <matthew@....cx> To: Christoph Lameter <clameter@....com> Cc: Mike Travis <travis@....com>, Andrew Morton <akpm@...ux-foundation.org>, linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org, David Miller <davem@...emloft.net>, Eric Dumazet <dada1@...mosbay.com>, Peter Zijlstra <peterz@...radead.org>, Rusty Russell <rusty@...tcorp.com.au> Subject: Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu access 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. -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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