49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <sys/times.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "pstats.h"
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static struct tms tms_beg;
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static struct tms tms_end;
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static int has_times = 0;
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void pstats_init(void)
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{
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has_times = times(&tms_beg) != -1;
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}
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static void tms_report(void)
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{
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double cputime;
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if (! has_times )
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return;
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times(&tms_end);
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cputime = ( ((float)tms_end.tms_utime + tms_end.tms_stime + tms_end.tms_cutime + tms_end.tms_cstime ) -
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((float)tms_beg.tms_utime + tms_beg.tms_stime + tms_beg.tms_cutime + tms_beg.tms_cstime ) )
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/ sysconf(_SC_CLK_TCK);
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fprintf(stderr,"\tcputime=%.3f\n" , cputime);
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}
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static void ps_report(void)
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{
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char buf[1024];
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#ifdef __APPLE__ /* MAC OS X */
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sprintf(buf,"ps -o command,majflt,minflt,rss,pagein,vsz -p %d 1>&2",getpid() );
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#else /* GNU/Linux */
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sprintf(buf,"ps -o comm,majflt,minflt,rss,drs,pagein,sz,trs,vsz %d 1>&2",getpid() );
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#endif
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if (system( buf )==-1) {
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perror("system call to ps failed");
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}
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}
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void pstats_report()
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{
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ps_report();
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tms_report();
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}
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