| Subject | Re: [thiscpuops upgrade 10/10] Lockless (and preemptless) fastpaths for slub | From | Peter Zijlstra <> | Date | Wed, 24 Nov 2010 09:15:12 +0100 |
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On Tue, 2010-11-23 at 17:51 -0600, Christoph Lameter wrote: > So there is no need even to disable preemption which will make the allocations > scale well in a RT environment.
The RT thing isn't particularly about scaling per-se, its mostly about working at all.
This thing still relies on disabling IRQs in the slow path, which means its still going to be a lot of work to make it work on -rt.
It also heavily relies on bit-spinlocks, which again is going to need changes for -rt.
But yes, the lockless fast path is nice, I'll try and get around to reading it.
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