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Hi,
So IIUC the below logs correctly, you are never hitting boost frequency (with or without this patch series). Is that correct ?
w.r.t temperature , how are you measuring it? Do you have LMh enabled or are you using tsens to mitigate cpu temperature ?
Hi,
I was wrong - it does indeed go boost with the patchset applied, it's just that it doesn't boost up to 2.96GHz very often at all. As noted by the 0.03% when i ran it while compiling zellij; I reapplied the patches (and the 6th patch from Lukasz's email) and after boot, 2.96GHz was showing at 0.39%.
Most tools that read the cpu frequency don't really seem to be well suited for big.LITTLE, and seem to throw an average of the speed, so cpufreq-info was the best I have. We're apparently supposed to be using cpupower these days, but it doesn't seem to know anything about arm64 devices.
Temperature wise, I'm just getting from the sensors, and I am using LMh.
Now, I have to admit, while I've thrown a patch here or there, I'm not exactly a kernel developer, just enough knowledge to be somewhat dangerous and know how to backport things. In my mind, and my line of thinking, I would expect with boost enabled, that the cpu would boost up to that as often as possible, not require a specific workload to actually hit it. But then again, I would expect multiple compilation jobs to be one of the workloads that would?
So I think, the part about never hitting 2.96GHz can be dismissed, and was simply my lack of knowledge about the cpufreq-info tool's averages. It does seem however to rarely ever hit 2.96GHz and I would actually expect it to hit it far more often.