Question about writing perl subroutines in c

[2weird]

I have read about writing perl subroutines in c and plan to try it out.
One question i need to ask is, by writing the subroutines in c does that mean my sub routines will run with c like efficiency?

[jimi_hendrix]

try it out...make a routine that does:

get current time

do large amount of math

get current time

print difference in time

then run it in C and run it in Perl

[snova]

I have read about writing perl subroutines in c and plan to try it out.
One question i need to ask is, by writing the subroutines in c does that mean my sub routines will run with c like efficiency?

If you write it in C, you get the speed of C...

Tempered by any Perl code you call, of course. But that may be negligible.

[2weird]

For those who would like to know: I have done some tests and it turns out that on first time run c code takes longer than perl. On the Second time it runs faster.