syscalls performance

[Daniel Baluta]

On Fri, Feb 25, 2011 at 8:22 PM, Mauro Romano Trajber <trajber at gmail.com> wrote:
> Thanks Enrico and Daniel, you're right. glibc was caching getpid(); but this
> is not the root cause of this behavior.
> Going further, I decide to use call getpid without glibc, using
>  syscall(SYS_getpid) to test this behavior and it happened again.
> Calling it once, the test consumes about 7k CPU cycles and 10 calls consumes
> about 10k CPU cycles.
> Any ideas ?

Can you post a pointer to your code and information about how you got
this numbers?

thanks,
Daniel.