Hi there,

I'd like to time some functions using Tango, but only including the really used CPU-time. StopWatch and the other time functions I've found don't mind on the CPU usage, which means if I time multiple processes at once which share a single CPU, their times increase...

Best regards
Matthias Walter

On Tue, Feb 3, 2009 at 5:54 PM, Matthias Walter <walter@mail.math.uni-magdeburg.de> wrote:
> Hi there,
>
> I'd like to time some functions using Tango, but only including the really used CPU-time. StopWatch and the other time functions I've found don't mind on the CPU usage, which means if I time multiple processes at once which share a single CPU, their times increase...
>
> Best regards
> Matthias Walter
>

That's something that the OS could do for you, like the "timex" command on unix.  There's probably something magical in /proc/ that you can use.  I have no idea what the corresponding functionality would be in Windows, but it probably has something.

Jarrett Billingsley wrote:
> On Tue, Feb 3, 2009 at 5:54 PM, Matthias Walter
> <walter@mail.math.uni-magdeburg.de> wrote:
>> Hi there,
>>
>> I'd like to time some functions using Tango, but only including the really used CPU-time. StopWatch and the other time functions I've found don't mind on the CPU usage, which means if I time multiple processes at once which share a single CPU, their times increase...
>>
>> Best regards
>> Matthias Walter
>>
> 
> That's something that the OS could do for you, like the "timex"
> command on unix.  There's probably something magical in /proc/ that
> you can use.  I have no idea what the corresponding functionality
> would be in Windows, but it probably has something.

If he had to use OS specific APIs (which would be another sad thing about Tango), I'd suggest to use clock_gettime() with CLOCK_THREAD_CPUTIME_ID under Unix.

What is timex?

On Tue, Feb 3, 2009 at 7:15 PM, grauzone <none@example.net> wrote:
> If he had to use OS specific APIs (which would be another sad thing about
> Tango), I'd suggest to use clock_gettime() with CLOCK_THREAD_CPUTIME_ID
> under Unix.
>
> What is timex?

http://en.wikipedia.org/wiki/Timex_(Unix)

On Tue, Feb 3, 2009 at 7:40 PM, Jarrett Billingsley <jarrett.billingsley@gmail.com> wrote:
> On Tue, Feb 3, 2009 at 7:15 PM, grauzone <none@example.net> wrote:
>> If he had to use OS specific APIs (which would be another sad thing about
>> Tango), I'd suggest to use clock_gettime() with CLOCK_THREAD_CPUTIME_ID
>> under Unix.
>>
>> What is timex?
>
> http://en.wikipedia.org/wiki/Timex_(Unix)

I realize why I know it as timex and not as time - our school uses Solaris on many of its machines.