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Date: Wed, 04 Apr 2007 16:09:40 +1000 From: Nick Piggin <nickpiggin@...oo.com.au> To: Eric Dumazet <dada1@...mosbay.com> CC: Andrew Morton <akpm@...ux-foundation.org>, Ulrich Drepper <drepper@...hat.com>, Andi Kleen <andi@...stfloor.org>, Rik van Riel <riel@...hat.com>, Linux Kernel <linux-kernel@...r.kernel.org>, linux-mm@...ck.org, Hugh Dickins <hugh@...itas.com> Subject: [patches] threaded vma patches (was Re: missing madvise functionality) Eric Dumazet wrote: > Nick Piggin a écrit : > >> Eric Dumazet wrote: >> >>> >>> I do think such workloads might benefit from a vma_cache not shared >>> by all threads but private to each thread. A sequence could >>> invalidate the cache(s). >>> >>> ie instead of a mm->mmap_cache, having a mm->sequence, and each >>> thread having a current->mmap_cache and current->mm_sequence >> >> >> I have a patchset to do exactly this, btw. > > > Could you repost it please ? Sure. I'll send you them privately because they're against an older kernel. >> Anyway what is the status of the private futex work. I don't think that >> is very intrusive or complicated, so it should get merged ASAP (so then >> at least we have the interface there). >> > > It seems nobody but you and me cared. Sad. Although Ulrich did seem interested at one point I think? Ulrich, do you agree at least with the interface that Eric is proposing? If yes, then Andrew, do you have any objections to putting Eric's fairly important patch at least into -mm? -- SUSE Labs, Novell Inc. - 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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