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/*
* Copyright (C) 2000-2001 the xine project
*
* This file is part of xine, a unix video player.
*
* xine 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 2 of the License, or
* (at your option) any later version.
*
* xine 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: monitor.c,v 1.5 2001/09/10 13:36:56 jkeil Exp $
*
* debug print and profiling functions - implementation
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <sys/time.h>
#include "utils.h"
#include "monitor.h"
#define MAX_ID 10
#ifdef DEBUG
long long int profiler_times[MAX_ID] ;
long long int profiler_start[MAX_ID] ;
long profiler_calls[MAX_ID] ;
char * profiler_label[MAX_ID] ;
void profiler_init () {
int i;
for (i=0; i<MAX_ID; i++) {
profiler_times[i] = 0;
profiler_start[i] = 0;
profiler_calls[i] = 0;
profiler_label[i] = NULL;
}
}
int profiler_allocate_slot (char *label) {
int id;
for (id = 0; id < MAX_ID && profiler_label[id] != NULL; id++)
;
if (id >= MAX_ID)
return -1;
profiler_label[id] = label;
return id;
}
#ifdef ARCH_X86
__inline__ unsigned long long int rdtsc()
{
unsigned long long int x;
__asm__ volatile (".byte 0x0f, 0x31" : "=A" (x));
return x;
}
#endif
void profiler_start_count (int id) {
if ((unsigned)id >= MAX_ID) return;
#ifdef ARCH_X86
profiler_start[id] = rdtsc();
#endif
}
void profiler_stop_count (int id) {
if ((unsigned)id >= MAX_ID) return;
#ifdef ARCH_X86
profiler_times[id] += rdtsc() - profiler_start[id];
#endif
profiler_calls[id]++;
}
void profiler_print_results () {
int i;
#ifdef ARCH_X86
static long long int cpu_speed; /* cpu cyles/usec */
if (!cpu_speed) {
long long int tsc_start, tsc_end;
struct timeval tv_start, tv_end;
tsc_start = rdtsc();
gettimeofday(&tv_start, NULL);
xine_usec_sleep(100000);
tsc_end = rdtsc();
gettimeofday(&tv_end, NULL);
cpu_speed = (tsc_end - tsc_start) /
((tv_end.tv_sec - tv_start.tv_sec) * 1e6 +
tv_end.tv_usec - tv_start.tv_usec);
}
#endif
printf ("\n\nPerformance analysis:\n\n"
"%-3s %-24.24s %12s %9s %12s %9s\n"
"----------------------------------------------------------------------------\n",
"ID", "name", "cpu cycles", "calls", "cycles/call", "usec/call");
for (i=0; i<MAX_ID; i++) {
if (profiler_label[i]) {
printf ("%2d: %-24.24s %12lld %9ld",
i, profiler_label[i], profiler_times[i], profiler_calls[i]);
if (profiler_calls[i]) {
printf(" %12lld", profiler_times[i] / profiler_calls[i]);
#ifdef ARCH_X86
printf(" %9lld", profiler_times[i] / (cpu_speed * profiler_calls[i]));
#endif
}
printf ("\n");
}
}
}
#endif
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