Re: [pure-lang-users] llvm 2.3 - good news

[Jiri S. <jir...@bl...>]

Libor Spacek wrote:
> Nice work! Incidentally, I find clock() to be a pretty blunt tool with its
> resolution of 10ms, which is way too long timelapse to measure most executions
> on modern machines, apart from pretty massive tasks. For example, in real-time
> image processing, you would process a whole image in no more than five ticks
> of the clock(). gettimeofday is a lot more accurate but measures the elapsed time.
> I am not even sure if clock() internally does any rounding, from what I can see
> it is just a discrete counter running in 10ms units, meaning that CPU time of 
> as much as 9ms can register as 0 (zilch).
> 
Hi Libor,
I am not sure but I think you mentioned somewhere you are using Ubuntu 
8.04. If so, then you can try to install the 'RT' (real time) Linux 
image. It contains timers with higher resolution.

Jiri