mirror/kissfft
1
0
Fork 0
mirror of https://github.com/mborgerding/kissfft.git synced 2025-07-18 21:14:24 -04:00
Code Issues Packages Projects Releases Wiki Activity

benchmark utilities now give memory info

Browse Source
This commit is contained in:
Mark Borgerding
2003-11-08 02:48:02 +00:00
parent bd23fe8d23
commit 140f106743
6 changed files with 69 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
test/pstats.c Normal file
View File

@ -0,0 +1,41 @@
#include <stdio.h>
#include <stdlib.h>
#include <sys/times.h>
#include <sys/types.h>
#include <unistd.h>
static struct tms tms_beg;
static struct tms tms_end;
static int has_times = 0;
void pstats_init()
{
has_times = times(&tms_beg) != -1;
}
static void tms_report()
{
double cputime;
if (! has_times )
return;
times(&tms_end);
cputime = ( ((float)tms_end.tms_utime + tms_end.tms_stime + tms_end.tms_cutime + tms_end.tms_cstime ) -
((float)tms_beg.tms_utime + tms_beg.tms_stime + tms_beg.tms_cutime + tms_beg.tms_cstime ) )
/ sysconf(_SC_CLK_TCK);
fprintf(stderr,"\tcputime=%.3f\n" , cputime);
}
static void ps_report()
{
char buf[1024];
sprintf(buf,"ps -o comm,majflt,minflt,rss,drs,pagein,sz,trs,vsz %d 1>&2",getpid() );
system( buf );
}
void pstats_report()
{
ps_report();
tms_report();
fprintf(stderr,"\n");
}