ping Re: [PATCH v5 01/17] perf: Add SNOOP_PEER flag to perf mem data struct
Arnaldo Carvalho de Melo
acme at kernel.org
Mon Aug 8 09:40:43 PDT 2022
Em Thu, Jul 21, 2022 at 08:27:19AM +0800, Leo Yan escreveu:
> On Wed, Jul 20, 2022 at 03:46:49PM -0300, Arnaldo Carvalho de Melo wrote:
> > Em Wed, Jul 20, 2022 at 03:45:51PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Sat, Jun 04, 2022 at 12:28:04PM +0800, Leo Yan escreveu:
> > > > From: Ali Saidi <alisaidi at amazon.com>
> > > >
> > > > Add a flag to the perf mem data struct to signal that a request caused a
> > > > cache-to-cache transfer of a line from a peer of the requestor and
> > > > wasn't sourced from a lower cache level. The line being moved from one
> > > > peer cache to another has latency and performance implications. On Arm64
> > > > Neoverse systems the data source can indicate a cache-to-cache transfer
> > > > but not if the line is dirty or clean, so instead of overloading HITM
> > > > define a new flag that indicates this type of transfer.
> > > >
> > > > Signed-off-by: Ali Saidi <alisaidi at amazon.com>
> > > > Reviewed-by: Leo Yan <leo.yan at linaro.org>
> > > > Reviewed-by: Kajol Jain<kjain at linux.ibm.com>
> > >
> > > Hey, any knews about this going upstream? PeterZ?
> >
> > Just took a look and it isn't in tip/master.
>
> Yeah, this patch is not picked by maintainers.
>
> I confirmed that this patch can be applied cleanly on tip/master
> branch. Peter.Z, could you pick this patch?
ping.
- Arnaldo
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