mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
/*******************************************************************************
|
|
|
|
COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
|
|
|
|
This program is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the Free
|
|
Software Foundation, either version 3 of the License, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
benchsyscall.cpp
|
|
Benchmarks the speed of system calls.
|
|
|
|
*******************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
int main(int /*argc*/, char* /*argv*/[])
|
|
{
|
|
uintmax_t start;
|
|
if ( uptime(&start) ) { perror("uptime"); return 1; }
|
|
uintmax_t end = start + 1ULL * 1000ULL * 1000ULL; // 1 second
|
|
size_t count = 0;
|
|
uintmax_t now;
|
|
while ( !uptime(&now) && now < end ) { count++; }
|
|
printf("Made %zu system calls in 1 second\n", count);
|
|
return 0;
|
|
}
|