[Skiboot] [RFC PATCH] core/opal: Add OPAL call statistics

Nicholas Piggin npiggin at gmail.com
Sat Feb 29 20:27:35 AEDT 2020

Cédric Le Goater's on February 29, 2020 4:34 am:
> Here is a proposal to collect OPAL call statistics, counts and duration,
> and track areas we could possibly improve.
> With a small Linux driver to dump the stats in debugfs, here is what
> we get on a P9 after boot:

Seems interesting... you could just do it all on the Linux side though.
Any reason you want these stats? I'd like to try get basic perf and
possibly even ftrace support for OPAL (driven from Linux). It's still
a way off but coming along slowly.


More information about the Skiboot mailing list