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tools/power turbostat: Clustered Uncore MHz counters should honor show/hide options

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The clustered uncore frequency counters, UMHz*.*
should honor the --show and --hide options.

All non-specified counters should be implicityly hidden.
But when --show was used, UMHz*.* showed up anyway:

$ sudo turbostat -q -S --show Busy%
Busy%  UMHz0.0  UMHz1.0  UMHz2.0  UMHz3.0  UMHz4.0

Indeed, there was no string that can be used to explicitly
show or hide clustered uncore counters.

Even through they are dynamically probed and added,
group the clustered UMHz*.* counters with the legacy
built-in-counter "UncMHz" for show/hide.

turbostat --show Busy%
	does not show UMHz*.*.
turbostat --show UncMHz
	shows either UncMHz or UMHz*.*, if present
turbostat --hide UncMHz
	hides either UncMHz or UMHz*.*, if present

Reported-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Tested-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
This commit is contained in:
Len Brown 2025-02-06 21:46:24 -06:00
parent 2c4627c8ce
commit 1c7c7388e6
2 changed files with 13 additions and 1 deletions
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1
tools/power/x86/turbostat/turbostat.8
View File

@ -199,6 +199,7 @@ 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.
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.
This is ideal for remote debugging, use the "--out" option to save everything to a text file, and get that file to the expert helping you debug.

13
tools/power/x86/turbostat/turbostat.c
View File

@ -6703,7 +6703,18 @@ static void probe_intel_uncore_frequency_cluster(void)
sprintf(path, "%s/current_freq_khz", path_base);
sprintf(name_buf, "UMHz%d.%d", domain_id, cluster_id);
add_counter(0, path, name_buf, 0, SCOPE_PACKAGE, COUNTER_K2M, FORMAT_AVERAGE, 0, package_id);
/*
* Once add_couter() is called, that counter is always read
* and reported -- So it is effectively (enabled & present).
* Only call add_counter() here if legacy BIC_UNCORE_MHZ (UncMHz)
* is (enabled). Since we are in this routine, we
* know we will not probe and set (present) the legacy counter.
*
* This allows "--show/--hide UncMHz" to be effective for
* the clustered MHz counters, as a group.
*/
if BIC_IS_ENABLED(BIC_UNCORE_MHZ)
add_counter(0, path, name_buf, 0, SCOPE_PACKAGE, COUNTER_K2M, FORMAT_AVERAGE, 0, package_id);
if (quiet)
continue;