lkml.org 
[lkml]   [2021]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 3/3] perf/x86/rapl: Fix psys-energy event on Intel SPR platform

FWIW, your email is malformed, please wrap at 78 chars.

On Mon, Jan 25, 2021 at 06:11:14AM +0000, Zhang, Rui wrote:
> In short, the current code does not allow RAPL energy counter to
> return 0. And all the work I do is to allow Psys energy counter to
> return 0.

Ok.

> In this way, the Psys event is "valid" on all CPUs, so we don't need
> to handle the master thing.

So RAPL is mapped to DIEs, and IIRC we can have multiple DIEs per
Package. But the master thing is a Package.

Is this all moot because SPR has one DIE per Package? Because if it
would have more, there's be more interesting problems I suppose.

\
 
 \ /
  Last update: 2021-02-03 15:48    [W:0.698 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site