1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* Copyright (c) 2003-2010, Mark Borgerding. All rights reserved.
* This file is part of KISS FFT - https://github.com/mborgerding/kissfft
*
* SPDX-License-Identifier: BSD-3-Clause
* See COPYING file for more information.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/times.h>
#include <sys/types.h>
#include <unistd.h>
#include "pstats.h"
static struct tms tms_beg;
static struct tms tms_end;
static int has_times = 0;
void pstats_init(void)
{
has_times = times(&tms_beg) != -1;
}
static void tms_report(void)
{
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(void)
{
char buf[1024];
#ifdef __APPLE__ /* MAC OS X */
sprintf(buf,"ps -o command,majflt,minflt,rss,pagein,vsz -p %d 1>&2",getpid() );
#else /* GNU/Linux */
sprintf(buf,"ps -o comm,majflt,minflt,rss,drs,pagein,sz,trs,vsz %d 1>&2",getpid() );
#endif
if (system( buf )==-1) {
perror("system call to ps failed");
}
}
void pstats_report()
{
ps_report();
tms_report();
}
|
