diff options
| author | Len Brown <len.brown@intel.com> | 2020-03-21 00:47:47 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2020-03-21 00:47:47 -0400 |
| commit | abdcbdb265264f736df316622a695ad30019c05f (patch) | |
| tree | 01d7dbcd142d2de09131d7175f66e031d8525bfa /tools/power/x86 | |
| parent | fcaa681c03ea82193e60d7f2cdfd94fbbcd4cae9 (diff) | |
tools/power turbostat: Print cpuidle information
Print cpuidle driver and governor.
Originally-by: Antti Laakso <antti.laakso@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools/power/x86')
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 77f89371ec5f..05dbe23570d4 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -3503,6 +3503,23 @@ dump_cstate_pstate_config_info(unsigned int family, unsigned int model) dump_nhm_cst_cfg(); } +static void dump_sysfs_file(char *path) +{ + FILE *input; + char cpuidle_buf[64]; + + input = fopen(path, "r"); + if (input == NULL) { + if (debug) + fprintf(outf, "NSFOD %s\n", path); + return; + } + if (!fgets(cpuidle_buf, sizeof(cpuidle_buf), input)) + err(1, "%s: failed to read file", path); + fclose(input); + + fprintf(outf, "%s: %s", strrchr(path, '/') + 1, cpuidle_buf); +} static void dump_sysfs_cstate_config(void) { @@ -3516,6 +3533,15 @@ dump_sysfs_cstate_config(void) if (!DO_BIC(BIC_sysfs)) return; + if (access("/sys/devices/system/cpu/cpuidle", R_OK)) { + fprintf(outf, "cpuidle not loaded\n"); + return; + } + + dump_sysfs_file("/sys/devices/system/cpu/cpuidle/current_driver"); + dump_sysfs_file("/sys/devices/system/cpu/cpuidle/current_governor"); + dump_sysfs_file("/sys/devices/system/cpu/cpuidle/current_governor_ro"); + for (state = 0; state < 10; ++state) { sprintf(path, "/sys/devices/system/cpu/cpu%d/cpuidle/state%d/name", |