Hi!
> The /proc/bus/input/devices has an extensible structure. You can just
> add an "A:" line (for Activity) instead of adding a new proc file.
>
> I know, but IMO there is too much stuff to parse in there. Activity counters
> are frequently accessed by daemons, and four or five concurrent daemons are the
> norm in a typical X11 linux box...
Syscalls are fast enough, and the file is _very_ easy (=> fast) to parse.
> Also, the activity counters should IMO coincide with the event times
> passed through /dev/input/event, and should not be jiffies based.
> Ideally, both should be based on clock_gettime(CLOCK_MONOTONIC).
>
> In evdev.c do_gettimeofday() is used. Anyway I just need of a monotonic
> counter, so get_jiffies_64() wouldn't be better? It isn't affected by wrapping
> issues and it is probably faster than do_gtod().
Just use same time source rest of inputs already do...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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