Re: [patch 1/4] ipc: sem optimise undo list search

[Manfred Spraul]

On 08/11/2009 01:09 PM, npiggin@xxxxxxx wrote:
> Move last looked up sem_undo struct to the head of the task's undo list.
> Attempt to move common entries to the front of the list so search time is
> reduced. This reduces lookup_undo on oprofile of problematic SAP workload
> by 30% (see patch 4 for a description of SAP workload).
>
> Signed-off-by: Nick Piggin<npiggin@xxxxxxx>
>    
Signed-off-by: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/