From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <46134124.2040705@yahoo.com.au> Date: Wed, 04 Apr 2007 16:09:40 +1000 From: Nick Piggin MIME-Version: 1.0 Subject: [patches] threaded vma patches (was Re: missing madvise functionality) References: <46128051.9000609@redhat.com> <46128CC2.9090809@redhat.com> <20070403172841.GB23689@one.firstfloor.org> <20070403125903.3e8577f4.akpm@linux-foundation.org> <4612B645.7030902@redhat.com> <20070403202937.GE355@devserv.devel.redhat.com> <20070403144948.fe8eede6.akpm@linux-foundation.org> <4612DCC6.7000504@cosmosbay.com> <46130BC8.9050905@yahoo.com.au> <46133A8B.50203@cosmosbay.com> In-Reply-To: <46133A8B.50203@cosmosbay.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Return-Path: To: Eric Dumazet Cc: Andrew Morton , Ulrich Drepper , Andi Kleen , Rik van Riel , Linux Kernel , linux-mm@kvack.org, Hugh Dickins List-ID: Eric Dumazet wrote: > Nick Piggin a ecrit : > >> 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org