[Skiboot] [PATCH] SLW: Add idle state stop5 for DD2.0 and above

Stewart Smith stewart at linux.vnet.ibm.com
Tue Nov 14 18:52:09 AEDT 2017

Akshay Adiga <akshay.adiga at linux.vnet.ibm.com> writes:
> Adding stop5 idle state with rough residency and latency numbers.

How stable has stop5 proved? I gather this patch is an indication that
we're fairly confident we have stop5 working well enough for an OS to

Is there some way we could write a test from userspace to force a core
into stop5 and out again a bunch of times? Maybe disable all other stop
states, do nothing on it and then check?

Stewart Smith
OPAL Architect, IBM.

More information about the Skiboot mailing list