Re: [Qemu-devel] [PATCH] target-sparc: Store mmu index in TB flags

[Artyom Tarasenko]

On Tue, Aug 25, 2015 at 4:25 PM, Richard Henderson <address@hidden> wrote:
> On 08/24/2015 11:44 PM, Artyom Tarasenko wrote:
>>
>> This is very surprising: the patch should have no effect on a sun4u
>> machine.
>
>
> Er, no, it should.  The primary vector by which I expect improvement is via
> not encoding dmmu.mmu_primary_context into the TB flags.  I.e. ASI_DMMU,
> which sun4u certainly uses.
>
> The fact that the patch _also_ fixes a sun4v problem is secondary.

Sorry, my bad, I haven't noticed that.

Applied it on top of the tcg-indirect branch, but see no measurable impact:
my reference g++ run still takes ~ 17 minutes.

Artyom

-- 
Regards,
Artyom Tarasenko

SPARC and PPC PReP under qemu blog: http://tyom.blogspot.com/search/label/qemu