tools/power turbostat: harden against cpu hotplug

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turbostat tends to get confused when CPUs are added and removed
while it is running.

There are races, such as checking the current cpu, and then
reading a sysfs file that depends on that cpu number.

Close the two issues that seem to come up the most.
First, there is an infinite reset loop detector --
change that to allow more resets before giving up.
Secondly, one of those file reads didn't really need
to exit the program on failure...

Signed-off-by: Len Brown <len.brown@intel.com>

...

This commit is contained in:

Len Brown 2020-09-30 20:58:15 -04:00

parent 6ff7cb371c

commit 3d7772ea56

1 changed files with 14 additions and 9 deletions

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tools/power/x86/turbostat/turbostat.c

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