Messages in this thread | | | Date | Thu, 21 Mar 2013 15:01:27 -0700 | From | Andrew Morton <> | Subject | Re: ipc,sem: sysv semaphore scalability |
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On Thu, 21 Mar 2013 17:50:05 -0400 Peter Hurley <peter@hurleysoftware.com> wrote:
> On Thu, 2013-03-21 at 14:10 -0700, Andrew Morton wrote: > > On Wed, 20 Mar 2013 15:55:30 -0400 Rik van Riel <riel@surriel.com> wrote: > > > > > This series makes the sysv semaphore code more scalable, > > > by reducing the time the semaphore lock is held, and making > > > the locking more scalable for semaphore arrays with multiple > > > semaphores. > > > > > > The first four patches were written by Davidlohr Buesso, and > > > reduce the hold time of the semaphore lock. > > > > > > The last three patches change the sysv semaphore code locking > > > to be more fine grained, providing a performance boost when > > > multiple semaphores in a semaphore array are being manipulated > > > simultaneously. > > > > These patches conflict pretty badly with Peter's: > > On one point I'm a little confused: my series has been in linux-next for > a while. On what tree is this series based?
It'll be based on mainline. People often forget to peek into linux-next when preparing patches. In the great majority of cases that's OK. Occasionally, we lose...
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