From: Len Brown Date: Sun, 6 Apr 2025 16:23:22 +0000 (-0400) Subject: tools/power turbostat: Document GNR UncMHz domain convention X-Git-Tag: v6.15-rc1~2^2~4 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3ae8508663372b93c5556a887e96ed0ca5df0711;p=thirdparty%2Flinux.git tools/power turbostat: Document GNR UncMHz domain convention Document that on Intel Granite Rapids Systems, Uncore domains 0-2 are CPU domains, and uncore domains 3-4 are IO domains. Signed-off-by: Len Brown --- diff --git a/tools/power/x86/turbostat/turbostat.8 b/tools/power/x86/turbostat/turbostat.8 index 144565151e1ee..e86493880c163 100644 --- a/tools/power/x86/turbostat/turbostat.8 +++ b/tools/power/x86/turbostat/turbostat.8 @@ -205,6 +205,7 @@ The system configuration dump (if --quiet is not used) is followed by statistics \fBUncMHz\fP per-package uncore MHz, instantaneous sample. .PP \fBUMHz1.0\fP per-package uncore MHz for domain=1 and fabric_cluster=0, instantaneous sample. System summary is the average of all packages. +Intel Granite Rapids systems use domains 0-2 for CPUs, and 3-4 for IO, with cluster always 0. For the "--show" and "--hide" options, use "UncMHz" to operate on all UMHz*.* as a group. .SH TOO MUCH INFORMATION EXAMPLE By default, turbostat dumps all possible information -- a system configuration header, followed by columns for all counters.