Messages in this thread | | | Date | Thu, 21 Mar 2013 23:40:09 -0400 | From | Rik van Riel <> | Subject | Re: ipc,sem: sysv semaphore scalability |
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On 03/21/2013 09:23 PM, Linus Torvalds wrote: > On Thu, Mar 21, 2013 at 6:12 PM, Davidlohr Bueso <davidlohr.bueso@hp.com> wrote: >> >> ipc lock contention: >> 100 users: 8,74% (vanilla) 3.17% (v3 patchset) >> 400 users: 21,86% (vanilla) 5.23% (v3 patchset) >> 800 users 84,35% (vanilla) 7.39% (v3 patchset) > > Ok, I'd call that pretty much "solved". Sure, it's still visible, but > for being a benchmark that apparently does little else than pound on > those sysv semaphores, I think we can consider it pretty much fine. > I'm going to assume that anybody who actually then does any real work > (ie a database) is never going to see even close to this bad > contention. > > Good job, Rik. I'm assuming we'll be merging this during the 3.10 > merge window, and hopefully the merge conflicts will be sorted out > too. Rik, Peter, can you look at each others patches and see if you > can get that sorted out for Andrew?
Will do.
I will rebase this series on top of what is in linux-next.
-- All rights reversed.
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