[Skiboot] [PATCH v5 0/9]OPAL support for Nest instrumentation
mpe at ellerman.id.au
Tue Sep 29 19:59:17 AEST 2015
On Mon, 2015-09-28 at 15:15 +1000, Stewart Smith wrote:
> Madhavan Srinivasan <maddy at linux.vnet.ibm.com> writes:
> > On Friday 25 September 2015 07:24 AM, Stewart Smith wrote:
> >> Madhavan Srinivasan <maddy at linux.vnet.ibm.com> writes:
> >>> Patchset adds support for Nest instrumentation services
> >>> in OPAL. Power8 has Nest instrumentation enabled with which
> >>> per-chip metrics like memory bandwidth, Powerbus, Xlink and
> >>> Alink metrics can be obtained.
> >> I've heard things about the hardware possibly having some issues? What's
> >> the status with this?
> > We dont have any hardware issues related to this feature, but due
> > to a regression bug in PTS (PORE Thread scheduler), the feature got
> > disabled and we are in the process of enabling the feature.
> Okay - so I should hold off on merging until some other code hits both
> FSP FW and openpower?
Depending on what happens on the firmware side the whole interface could become
unused, so it would be a pity to merge it if that ends up being the case.
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