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Date: Fri, 7 Sep 2012 23:22:16 +0200 From: Linus Walleij <linus.walleij@...aro.org> To: Benjamin Gaignard <benjamin.gaignard@...aro.org> Cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, ying.huang@...el.com, Benjamin Gaignard <benjamin.gaignard@...ricsson.com> Subject: Re: [PATCH] genalloc: make possible to use a custom allocation algorithm On Fri, Sep 7, 2012 at 11:16 AM, Benjamin Gaignard <benjamin.gaignard@...aro.org> wrote: > From: Benjamin Gaignard <benjamin.gaignard@...ricsson.com> > > This patch allow to use another algorithm than the default first-fit one. > For example a custom algorithm could be used to manage alignment requirements. > > Add of best-fit algorithm function: > most of the time best-fit is slower then first-fit but memory fragmentation is lower. > Random buffer allocation/free tests don't show any arithmetic relation between > allocation time and fragmentation but best-fit algorithm is sometime able to perform the allocation when first-fit can't. > > This new algorithm help to solve fragmentation issues on ESRAM shared by multiple > hardware IP allocating and freeing dynamically memory region of various sizes. > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...ricsson.com> We really need this to manage our on-chip RAM (ESRAM) which is a scarce resource, so: Acked-by: Linus Walleij <linus.walleij@...aro.org> Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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