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authorLen Brown <len.brown@intel.com>2017-02-22 08:11:12 +0300
committerLen Brown <len.brown@intel.com>2017-03-01 08:14:25 +0300
commit7293fccdffdec0ab0c36c4e4cffacb3ff114928e (patch)
tree4788e062c2d98fa6162368526a5eacc35dd282e6 /tools
parent7da6e3e2125d24040b3648ddc61edf70eb533849 (diff)
downloadlinux-7293fccdffdec0ab0c36c4e4cffacb3ff114928e.tar.xz
tools/power turbostat: dump p-state software config
cpu1: cpufreq driver: acpi-cpufreq cpu1: cpufreq governor: ondemand cpufreq boost: 1 or cpu0: cpufreq driver: intel_pstate cpu0: cpufreq governor: powersave cpufreq intel_pstate no_turbo: 0 Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/power/x86/turbostat/turbostat.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 2c674ad5ab80..7af5f42a9792 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2979,6 +2979,54 @@ dump_sysfs_cstate_config(void)
fclose(input);
}
}
+static void
+dump_sysfs_pstate_config(void)
+{
+ char path[64];
+ char driver_buf[64];
+ char governor_buf[64];
+ FILE *input;
+ int turbo;
+
+ sprintf(path, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_driver",
+ base_cpu);
+ input = fopen(path, "r");
+ if (input == NULL) {
+ fprintf(stderr, "NSFOD %s\n", path);
+ return;
+ }
+ fgets(driver_buf, sizeof(driver_buf), input);
+ fclose(input);
+
+ sprintf(path, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_governor",
+ base_cpu);
+ input = fopen(path, "r");
+ if (input == NULL) {
+ fprintf(stderr, "NSFOD %s\n", path);
+ return;
+ }
+ fgets(governor_buf, sizeof(governor_buf), input);
+ fclose(input);
+
+ fprintf(outf, "cpu%d: cpufreq driver: %s", base_cpu, driver_buf);
+ fprintf(outf, "cpu%d: cpufreq governor: %s", base_cpu, governor_buf);
+
+ sprintf(path, "/sys/devices/system/cpu/cpufreq/boost");
+ input = fopen(path, "r");
+ if (input != NULL) {
+ fscanf(input, "%d", &turbo);
+ fprintf(outf, "cpufreq boost: %d\n", turbo);
+ fclose(input);
+ }
+
+ sprintf(path, "/sys/devices/system/cpu/intel_pstate/no_turbo");
+ input = fopen(path, "r");
+ if (input != NULL) {
+ fscanf(input, "%d", &turbo);
+ fprintf(outf, "cpufreq intel_pstate no_turbo: %d\n", turbo);
+ fclose(input);
+ }
+}
/*
@@ -4168,6 +4216,8 @@ void process_cpuid()
if (!quiet)
dump_sysfs_cstate_config();
+ if (!quiet)
+ dump_sysfs_pstate_config();
if (has_skl_msrs(family, model))
calculate_tsc_tweak();