int cmd_info(int argc, char **argv)
{
extern char *optarg;
extern int optind, opterr, optopt;
unsigned int cpu;
union {
struct {
int perf_bias:1;
};
int params;
} params = {};
int ret = 0;
setlocale(LC_ALL, "");
textdomain(PACKAGE);
/* parameter parsing */
while ((ret = getopt_long(argc, argv, "b", set_opts, NULL)) != -1) {
switch (ret) {
case 'b':
if (params.perf_bias)
print_wrong_arg_exit();
params.perf_bias = 1;
break;
default:
print_wrong_arg_exit();
}
};
if (!params.params)
params.params = 0x7;
/* Default is: show output of CPU 0 only */
if (bitmask_isallclear(cpus_chosen))
bitmask_setbit(cpus_chosen, 0);
/* Add more per cpu options here */
if (!params.perf_bias)
return ret;
if (params.perf_bias) {
if (!run_as_root) {
params.perf_bias = 0;
printf(_("Intel's performance bias setting needs root privileges\n"));
} else if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_PERF_BIAS)) {
printf(_("System does not support Intel's performance"
" bias setting\n"));
params.perf_bias = 0;
}
}
/* loop over CPUs */
for (cpu = bitmask_first(cpus_chosen);
cpu <= bitmask_last(cpus_chosen); cpu++) {
if (!bitmask_isbitset(cpus_chosen, cpu) ||
cpufreq_cpu_exists(cpu))
continue;
printf(_("analyzing CPU %d:\n"), cpu);
if (params.perf_bias) {
ret = msr_intel_get_perf_bias(cpu);
if (ret < 0) {
fprintf(stderr,
_("Could not read perf-bias value[%d]\n"), ret);
exit(EXIT_FAILURE);
} else
printf(_("perf-bias: %d\n"), ret);
}
}
return 0;
}
int cmd_info(int argc, char **argv)
{
extern char *optarg;
extern int optind, opterr, optopt;
unsigned int cpu;
union {
struct {
int sched_mc:1;
int sched_smt:1;
int perf_bias:1;
};
int params;
} params = {};
int ret = 0;
setlocale(LC_ALL, "");
textdomain(PACKAGE);
while ((ret = getopt_long(argc, argv, "msb", set_opts, NULL)) != -1) {
switch (ret) {
case 'b':
if (params.perf_bias)
print_wrong_arg_exit();
params.perf_bias = 1;
break;
case 'm':
if (params.sched_mc)
print_wrong_arg_exit();
params.sched_mc = 1;
break;
case 's':
if (params.sched_smt)
print_wrong_arg_exit();
params.sched_smt = 1;
break;
default:
print_wrong_arg_exit();
}
};
if (!params.params)
params.params = 0x7;
if (bitmask_isallclear(cpus_chosen))
bitmask_setbit(cpus_chosen, 0);
if (params.sched_mc) {
ret = sysfs_get_sched("mc");
printf(_("System's multi core scheduler setting: "));
if (ret < 0)
printf(_("not supported\n"));
else
printf("%d\n", ret);
}
if (params.sched_smt) {
ret = sysfs_get_sched("smt");
printf(_("System's thread sibling scheduler setting: "));
if (ret < 0)
printf(_("not supported\n"));
else
printf("%d\n", ret);
}
if (!params.perf_bias)
return ret;
if (params.perf_bias) {
if (!run_as_root) {
params.perf_bias = 0;
printf(_("Intel's performance bias setting needs root privileges\n"));
} else if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_PERF_BIAS)) {
printf(_("System does not support Intel's performance"
" bias setting\n"));
params.perf_bias = 0;
}
}
for (cpu = bitmask_first(cpus_chosen);
cpu <= bitmask_last(cpus_chosen); cpu++) {
if (!bitmask_isbitset(cpus_chosen, cpu) ||
cpufreq_cpu_exists(cpu))
continue;
printf(_("analyzing CPU %d:\n"), cpu);
if (params.perf_bias) {
ret = msr_intel_get_perf_bias(cpu);
if (ret < 0) {
printf(_("Could not read perf-bias value\n"));
break;
} else
printf(_("perf-bias: %d\n"), ret);
}
}
return ret;
}
