[Mesa-dev] [PATCH 0/8] i965: Don't recycle BOs until they are idle

[Jason Ekstrand]

On Fri, Jun 15, 2018 at 8:31 AM, Michel Dänzer <michel at daenzer.net> wrote:

> On 2018-06-15 05:25 PM, Jason Ekstrand wrote:
> > On June 15, 2018 01:14:24 Michel Dänzer <michel at daenzer.net> wrote:
> >> On 2018-06-15 07:31 AM, Jason Ekstrand wrote:
> >>>
> >>> I did some testing and x11perf -copywinwin500 is... exactly the same
> >>> with
> >>> or without my patches.  If anything they might improve it by just a
> >>> hair.
> >>
> >> Possible explanations I can think of:
> >>
> >> 1. Your glamor still has its own FBO cache. Which version of xserver are
> >> you testing with?
> >>
> > 1.19 I think
>
> Okay, that doesn't have the glamor FBO cache anymore.
>
>
> >> 2. The i965 driver cache isn't hit even before these changes.
> >
> > It's definitely getting hit in both cases, it just may require a
> > slightly larger cache of we aren't recycling BOs until they're idle.
>
> It might be more than just slightly, -copywinwin500 can queue many
> overlapping copies between flushes. Can you compare the maximum total
> cache size with and without this series?
>

That should be possible.  I'll see what I can do.  It's always a bit
annoying getting stuff out of X because printf gets weird but I should be
able to come up with something.
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