Hello, everybody!

I am using the C function clock() as a counter
of number of ticks of my programm. I am newbie in benchmarking
architectures so please let me know  if i am the
right thing. I am using a Ultra-Sparc 5

thanks in advance!

The function is described here:

http://htmlhelp.sunsite.dk/page.php/9/ch22s03.html

Leonardo


=09"A gente s=F3 sabe bem aquilo que n=E3o entende".
=09=09=09=09 Guimar=E3es Rosa

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Leonardo Barbosa e Oliveira wrote:
>=20
> Hello, everybody!
>=20
> I am using the C function clock() as a counter
> of number of ticks of my programm. I am newbie in benchmarking
> architectures so please let me know  if i am the
> right thing. I am using a Ultra-Sparc 5
>=20
> thanks in advance!
>=20
> The function is described here:
>=20
> http://htmlhelp.sunsite.dk/page.php/9/ch22s03.html
>=20
>      Leonardo
>=20
>=20
> 	"A gente s=F3 sabe bem aquilo que n=E3o entende".
> 				 Guimar=E3es Rosa

clock() is OK, but I prefer all the extra data
that getrusage() provides, like the split
between user time and system time, messages
sent/recieved, etc.

At first you won't know which other stuff
that getrusage() gives you is important to
you or not, but you'll have the info without
having to swap our one subroutine call for
another.

NPL

--=20
"It is impossible to make anything foolproof
because fools are so ingenious"
- A. Bloch

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Leonardo Barbosa e Oliveira <leob@dcc.ufmg.br> wrote:

>
>
>Hello, everybody!
>
>I am using the C function clock() as a counter
>of number of ticks of my programm. I am newbie in benchmarking
>architectures so please let me know  if i am the
>right thing. I am using a Ultra-Sparc 5
>
I generally use time(1). It has the advantage that you need not alter any co
de
and that it gives a more detailed output of user and system time.

If you want to benchmark individual functions as opposed to your whole progr
am
then you might be better using getruseage(). You could also look into using
gprof if it is available on your platform.

Pete

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