Messages in this thread | | | Subject | Re: [PATCH] cpufreq: powernv: Export frequency throttle state of the chip through sysfs | From | Michael Ellerman <> | Date | Thu, 27 Aug 2015 19:31:30 +1000 |
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On Thu, 2015-08-27 at 14:43 +0530, Shilpasri G Bhat wrote: > Create a sysfs 'throttle' attribute per-chip(per-numa-node) to reflect > the throttle state of the chip. The usersapce programs can poll on > this attribute to keep an eye on the throttle state. Currently we > print a log message to notify the user of throttling event. The > performance-sensitive applications can monitor the throttle state > using this attribute.
Performance sensitive applications can *poll* on a sysfs file, which does a loop over all chips and potentially spams the console with pr_crit() messages ?
That does not sound like a recipe for success.
What problem are we actually trying to solve here?
cheers
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