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Diffstat (limited to 'src/xine-engine/monitor.c')
-rw-r--r-- | src/xine-engine/monitor.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/xine-engine/monitor.c b/src/xine-engine/monitor.c new file mode 100644 index 000000000..6fb23340e --- /dev/null +++ b/src/xine-engine/monitor.c @@ -0,0 +1,84 @@ +/* + * 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 1.1 2001/04/18 22:36:04 f1rmb Exp $ + * + * debug print and profiling functions - implementation + * + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "monitor.h" +#include <stdio.h> + +#define MAX_ID 5 + +#ifdef DEBUG + +long long int profiler_times[MAX_ID+1] ; +long long int profiler_start[MAX_ID+1] ; +char * profiler_label[MAX_ID+1] ; + +void profiler_init () { + int i; + for (i=0; i<MAX_ID; i++) { + profiler_times[i] = 0; + profiler_start[i] = 0; + profiler_label[i] = "??"; + } +} + +void profiler_set_label (int id, char *label) { + profiler_label[id] = label; +} + +#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) { +#ifdef ARCH_X86 + profiler_start[id] = rdtsc(); +#endif +} + +void profiler_stop_count (int id) { +#ifdef ARCH_X86 + profiler_times[id] += rdtsc() - profiler_start[id]; +#endif +} + +void profiler_print_results () { + int i; + + printf ("\n\nPerformance analysis (cpu cycles):\n\n"); + for (i=0; i<MAX_ID; i++) { + printf ("%d:\t%s\t%12lld\n", i, profiler_label[i], profiler_times[i]); + } +} + +#endif |