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SubjectRe: ipc,sem: sysv semaphore scalability
On 03/21/2013 06:01 PM, Andrew Morton wrote:
> 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...

I'll be happy to rebase the series onto linux-next, to make
merging easier for you.

--
All rights reversed.


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