Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sat, 04 Oct 2003 06:05:02 +0200 | From | Hans-Georg Thien <> | Subject | Re: getting timestamp of last interrupt? |
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Karim Yaghmour wrote:
> > Hans-Georg Thien wrote: > >> I am looking for a possibility to read out the last timestamp when an >> interrupt has occured. >> >> e.g.: the user presses a key on the keyboard. Where can I read out the >> timestamp of this event? >> >> To be more precise, I 'm looking for >> >> ( )a function call >> ( ) a callback where I can register to be notified when an event occurs >> ( ) a global accessible variable >> ( ) a /proc entry >> >> or something like that. >> >> Any ideas ? > > > Have a look at the Linux Trace Toolkit: > http://www.opersys.com/LTT/ > It records micro-second time-stamps for quite a few events, including > interrupts. > thanke a lot for reply Karim,
but I think that LTT does not fit to my needs. It needs to modify the kernel - and that is what I want to avoid.
I'm looking for a already existing built-in capability.
Maybe signal SIGIO is a solution, if it does not
(x) give me *every* IO event (x) has to much overhead - I have to respond to keyboard/mouse events, *not* disk events grafic card events eth event etc. ...
- Hans
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