[PATCH] ARM: mm: try to re-use old ASID assignments following a rollover
catalin.marinas at arm.com
Thu Nov 13 09:02:17 PST 2014
On Thu, Oct 30, 2014 at 04:55:58PM +0000, Will Deacon wrote:
> Rather than unconditionally allocating a fresh ASID to an mm from an
> older generation, attempt to re-use the old assignment where possible.
> This can bring performance benefits on systems where the ASID is used to
> tag things other than the TLB (e.g. branch prediction resources).
> Signed-off-by: Will Deacon <will.deacon at arm.com>
Just curious, have you seen any improvements with this patch?
Anyway, it makes sense. Unless you sent it already to Russell:
Reviewed-by: Catalin Marinas <catalin.marinas at arm.com>
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