Messages in this thread | | | Date | Tue, 21 Apr 2020 04:18:49 -0700 | From | Matthew Wilcox <> | Subject | Re: [PATCH V2] kmalloc_index optimization(code size & runtime stable) |
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On Mon, Apr 20, 2020 at 08:25:01PM -0700, Bernard Zhao wrote: > kmalloc_index inline function code size optimization and runtime > performance stability optimization. After optimization, the function > kmalloc_index is more stable, the size will never affecte the function`s > execution efficiency.
Please stop posting this patch until it's faster *for small sizes*. As I explained last time you posted it, it's not an optimisation.
> size time/Per 100 million times > old fun new fun with optimise > 8 203777 241934 > 16 245611 409278 > 32 236384 408419 > 64 275499 447732 > 128 354909 416439
^^^^ these are the important cases that need to be fast.
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