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[perf] Remove cpuset warning for cairo-perf-trace

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These traces run for much longer than the original synthetic benchmarks
and seek to replicate 'real-world' applications, so the warning that the
xserver and cairo-perf are not bound to any cpu is false.
This commit is contained in:
Chris Wilson 2009-08-22 12:09:25 +01:00
parent d07ed5d990
commit 9c8e60f771
1 changed files with 0 additions and 47 deletions
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47
perf/cairo-perf-trace.c
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@ -55,10 +55,6 @@
#include <fontconfig/fontconfig.h>
#endif
#ifdef HAVE_SCHED_H
#include <sched.h>
#endif
#define CAIRO_PERF_ITERATIONS_DEFAULT 15
#define CAIRO_PERF_LOW_STD_DEV 0.05
#define CAIRO_PERF_MIN_STD_DEV_COUNT 3
@ -544,37 +540,6 @@ parse_options (cairo_perf_t *perf, int argc, char *argv[])
}
}
static int
check_cpu_affinity (void)
{
#ifdef HAVE_SCHED_GETAFFINITY
cpu_set_t affinity;
int i, cpu_count;
if (sched_getaffinity (0, sizeof (affinity), &affinity)) {
perror ("sched_getaffinity");
return -1;
}
for (i = 0, cpu_count = 0; i < CPU_SETSIZE; ++i) {
if (CPU_ISSET (i, &affinity))
++cpu_count;
}
if (cpu_count > 1) {
fputs ("WARNING: cairo-perf has not been bound to a single CPU.\n",
stderr);
return -1;
}
return 0;
#else
fputs ("WARNING: Cannot check CPU affinity for this platform.\n",
stderr);
return -1;
#endif
}
static void
cairo_perf_fini (cairo_perf_t *perf)
{
@ -705,18 +670,6 @@ main (int argc, char *argv[])
parse_options (&perf, argc, argv);
if (! perf.list_only && check_cpu_affinity ()) {
fputs ("NOTICE: cairo-perf and the X server should be bound to CPUs (either the same\n"
"or separate) on SMP systems. Not doing so causes random results when the X\n"
"server is moved to or from cairo-perf's CPU during the benchmarks:\n"
"\n"
" $ sudo taskset -cp 0 $(pidof X)\n"
" $ taskset -cp 1 $$\n"
"\n"
"See taskset(1) for information about changing CPU affinity.\n\n",
stderr);
}
signal (SIGINT, interrupt);
if (getenv ("CAIRO_TRACE_DIR") != NULL)