Assistance with >~95% CPU usage when calling pread64 when using LUKS

abraunegg alex.braunegg at gmail.com
Mon Mar 11 17:32:10 UTC 2019


On Monday, 11 March 2019 at 08:29:56 UTC, Boris-Barboris wrote:
> Sorry, I skimmed through the issues quickly. Given the sparsity 
> of info in the logs, I would be caughtious in assuming the 
> program internal state.

Agreed there - I have a feeling it is related to the use of 
encryption & the overheads with that.

> I can recommend trying to compile an easy to use instruction 
> for "callgrind" trace generation (there is a good page on dlang 
> wiki about it), wich, given a debug build of a program, should 
> give you an insight about what's happening.
>
> I don't think there's much use of statically analyzing a source 
> code, you should try to extract more runtime info from the 
> issue reporters.

Thanks - will look into that.


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