diff options
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.8 | 14 | ||||
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 281 |
2 files changed, 160 insertions, 135 deletions
diff --git a/tools/power/x86/turbostat/turbostat.8 b/tools/power/x86/turbostat/turbostat.8 index 7771eea3cdec..89a55d5e32f3 100644 --- a/tools/power/x86/turbostat/turbostat.8 +++ b/tools/power/x86/turbostat/turbostat.8 @@ -36,6 +36,9 @@ more than once may also enable internal turbostat debug information. .PP \fB--interval seconds\fP overrides the default 5.0 second measurement interval. .PP +\fB--out output_file\fP turbostat output is written to the specified output_file. +The file is truncated if it already exists, and it is created if it does not exist. +.PP \fB--help\fP displays usage for the most common parameters. .PP \fB--Joules\fP displays energy in Joules, rather than dividing Joules by time to print power in Watts. @@ -83,10 +86,11 @@ Note that multiple CPUs per core indicate support for Intel(R) Hyper-Threading T \fBRAM_%\fP percent of the interval that RAPL throttling was active on DRAM. .fi .PP -.SH EXAMPLE +.SH PERIODIC EXAMPLE Without any parameters, turbostat displays statistics ever 5 seconds. -(override interval with "-i sec" option, or specify a command -for turbostat to fork). +Periodic output goes to stdout, by default, unless --out is used to specify an output file. +The 5-second interval can be changed with th "-i sec" option. +Or a command may be specified as in "FORK EXAMPLE" below. .nf [root@hsw]# ./turbostat CPU Avg_MHz Busy% Bzy_MHz TSC_MHz @@ -171,7 +175,9 @@ The --debug option adds additional columns to the measurement ouput, including C See the field definitions above. .SH FORK EXAMPLE If turbostat is invoked with a command, it will fork that command -and output the statistics gathered when the command exits. +and output the statistics gathered after the command exits. +In this case, turbostat output goes to stderr, by default. +Output can instead be saved to a file using the --out option. eg. Here a cycle soaker is run on 1 CPU (see %c0) for a few seconds until ^C while the other CPUs are mostly idle: diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 947239b53e17..5f9f41a3bf91 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -44,6 +44,7 @@ #include <errno.h> char *proc_stat = "/proc/stat"; +FILE *outf; struct timespec interval_ts = {5, 0}; unsigned int debug; unsigned int rapl_joules; @@ -652,15 +653,24 @@ done: return 0; } -void flush_stdout() +void flush_output_stdout(void) { - fputs(output_buffer, stdout); - fflush(stdout); + FILE *filep; + + if (outf == stderr) + filep = stdout; + else + filep = outf; + + fputs(output_buffer, filep); + fflush(filep); + outp = output_buffer; } -void flush_stderr() +void flush_output_stderr(void) { - fputs(output_buffer, stderr); + fputs(output_buffer, outf); + fflush(outf); outp = output_buffer; } void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) @@ -752,9 +762,9 @@ delta_thread(struct thread_data *new, struct thread_data *old, } else { if (!aperf_mperf_unstable) { - fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); - fprintf(stderr, "* Frequency results do not cover entire interval *\n"); - fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); + fprintf(outf, "%s: APERF or MPERF went backwards *\n", progname); + fprintf(outf, "* Frequency results do not cover entire interval *\n"); + fprintf(outf, "* fix this by running Linux-2.6.30 or later *\n"); aperf_mperf_unstable = 1; } @@ -789,7 +799,8 @@ delta_thread(struct thread_data *new, struct thread_data *old, } if (old->mperf == 0) { - if (debug > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id); + if (debug > 1) + fprintf(outf, "cpu%d MPERF 0!\n", old->cpu_id); old->mperf = 1; /* divide by 0 protection */ } @@ -989,7 +1000,7 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) unsigned long long msr; if (cpu_migrate(cpu)) { - fprintf(stderr, "Could not migrate to CPU %d\n", cpu); + fprintf(outf, "Could not migrate to CPU %d\n", cpu); return -1; } @@ -1182,18 +1193,18 @@ dump_nhm_platform_info(void) get_msr(base_cpu, MSR_PLATFORM_INFO, &msr); - fprintf(stderr, "cpu%d: MSR_PLATFORM_INFO: 0x%08llx\n", base_cpu, msr); + fprintf(outf, "cpu%d: MSR_PLATFORM_INFO: 0x%08llx\n", base_cpu, msr); ratio = (msr >> 40) & 0xFF; - fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency frequency\n", + fprintf(outf, "%d * %.0f = %.0f MHz max efficiency frequency\n", ratio, bclk, ratio * bclk); ratio = (msr >> 8) & 0xFF; - fprintf(stderr, "%d * %.0f = %.0f MHz base frequency\n", + fprintf(outf, "%d * %.0f = %.0f MHz base frequency\n", ratio, bclk, ratio * bclk); get_msr(base_cpu, MSR_IA32_POWER_CTL, &msr); - fprintf(stderr, "cpu%d: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n", + fprintf(outf, "cpu%d: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n", base_cpu, msr, msr & 0x2 ? "EN" : "DIS"); return; @@ -1207,16 +1218,16 @@ dump_hsw_turbo_ratio_limits(void) get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT2, &msr); - fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT2: 0x%08llx\n", base_cpu, msr); + fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT2: 0x%08llx\n", base_cpu, msr); ratio = (msr >> 8) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 18 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 18 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 0) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 17 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 17 active cores\n", ratio, bclk, ratio * bclk); return; } @@ -1229,46 +1240,46 @@ dump_ivt_turbo_ratio_limits(void) get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT1, &msr); - fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", base_cpu, msr); + fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", base_cpu, msr); ratio = (msr >> 56) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 48) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 40) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 32) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 24) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 16) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 8) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 0) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", ratio, bclk, ratio * bclk); return; } @@ -1281,46 +1292,46 @@ dump_nhm_turbo_ratio_limits(void) get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT, &msr); - fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", base_cpu, msr); + fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", base_cpu, msr); ratio = (msr >> 56) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 48) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 40) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 32) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 24) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 16) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 8) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 0) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", + fprintf(outf, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", ratio, bclk, ratio * bclk); return; } @@ -1338,7 +1349,7 @@ dump_knl_turbo_ratio_limits(void) get_msr(base_cpu, MSR_NHM_TURBO_RATIO_LIMIT, &msr); - fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", + fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", base_cpu, msr); /** @@ -1379,7 +1390,7 @@ dump_knl_turbo_ratio_limits(void) for (i = buckets_no - 1; i >= 0; i--) if (i > 0 ? ratio[i] != ratio[i - 1] : 1) - fprintf(stderr, + fprintf(outf, "%d * %.0f = %.0f MHz max turbo %d active cores\n", ratio[i], bclk, ratio[i] * bclk, cores[i]); } @@ -1394,9 +1405,9 @@ dump_nhm_cst_cfg(void) #define SNB_C1_AUTO_UNDEMOTE (1UL << 27) #define SNB_C3_AUTO_UNDEMOTE (1UL << 28) - fprintf(stderr, "cpu%d: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", base_cpu, msr); + fprintf(outf, "cpu%d: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", base_cpu, msr); - fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n", + fprintf(outf, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n", (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "", (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "", (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "", @@ -1413,41 +1424,41 @@ dump_config_tdp(void) unsigned long long msr; get_msr(base_cpu, MSR_CONFIG_TDP_NOMINAL, &msr); - fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_NOMINAL: 0x%08llx", base_cpu, msr); - fprintf(stderr, " (base_ratio=%d)\n", (unsigned int)msr & 0xEF); + fprintf(outf, "cpu%d: MSR_CONFIG_TDP_NOMINAL: 0x%08llx", base_cpu, msr); + fprintf(outf, " (base_ratio=%d)\n", (unsigned int)msr & 0xEF); get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_1, &msr); - fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_LEVEL_1: 0x%08llx (", base_cpu, msr); + fprintf(outf, "cpu%d: MSR_CONFIG_TDP_LEVEL_1: 0x%08llx (", base_cpu, msr); if (msr) { - fprintf(stderr, "PKG_MIN_PWR_LVL1=%d ", (unsigned int)(msr >> 48) & 0xEFFF); - fprintf(stderr, "PKG_MAX_PWR_LVL1=%d ", (unsigned int)(msr >> 32) & 0xEFFF); - fprintf(stderr, "LVL1_RATIO=%d ", (unsigned int)(msr >> 16) & 0xEF); - fprintf(stderr, "PKG_TDP_LVL1=%d", (unsigned int)(msr) & 0xEFFF); + fprintf(outf, "PKG_MIN_PWR_LVL1=%d ", (unsigned int)(msr >> 48) & 0xEFFF); + fprintf(outf, "PKG_MAX_PWR_LVL1=%d ", (unsigned int)(msr >> 32) & 0xEFFF); + fprintf(outf, "LVL1_RATIO=%d ", (unsigned int)(msr >> 16) & 0xEF); + fprintf(outf, "PKG_TDP_LVL1=%d", (unsigned int)(msr) & 0xEFFF); } - fprintf(stderr, ")\n"); + fprintf(outf, ")\n"); get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_2, &msr); - fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_LEVEL_2: 0x%08llx (", base_cpu, msr); + fprintf(outf, "cpu%d: MSR_CONFIG_TDP_LEVEL_2: 0x%08llx (", base_cpu, msr); if (msr) { - fprintf(stderr, "PKG_MIN_PWR_LVL2=%d ", (unsigned int)(msr >> 48) & 0xEFFF); - fprintf(stderr, "PKG_MAX_PWR_LVL2=%d ", (unsigned int)(msr >> 32) & 0xEFFF); - fprintf(stderr, "LVL2_RATIO=%d ", (unsigned int)(msr >> 16) & 0xEF); - fprintf(stderr, "PKG_TDP_LVL2=%d", (unsigned int)(msr) & 0xEFFF); + fprintf(outf, "PKG_MIN_PWR_LVL2=%d ", (unsigned int)(msr >> 48) & 0xEFFF); + fprintf(outf, "PKG_MAX_PWR_LVL2=%d ", (unsigned int)(msr >> 32) & 0xEFFF); + fprintf(outf, "LVL2_RATIO=%d ", (unsigned int)(msr >> 16) & 0xEF); + fprintf(outf, "PKG_TDP_LVL2=%d", (unsigned int)(msr) & 0xEFFF); } - fprintf(stderr, ")\n"); + fprintf(outf, ")\n"); get_msr(base_cpu, MSR_CONFIG_TDP_CONTROL, &msr); - fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_CONTROL: 0x%08llx (", base_cpu, msr); + fprintf(outf, "cpu%d: MSR_CONFIG_TDP_CONTROL: 0x%08llx (", base_cpu, msr); if ((msr) & 0x3) - fprintf(stderr, "TDP_LEVEL=%d ", (unsigned int)(msr) & 0x3); - fprintf(stderr, " lock=%d", (unsigned int)(msr >> 31) & 1); - fprintf(stderr, ")\n"); + fprintf(outf, "TDP_LEVEL=%d ", (unsigned int)(msr) & 0x3); + fprintf(outf, " lock=%d", (unsigned int)(msr >> 31) & 1); + fprintf(outf, ")\n"); get_msr(base_cpu, MSR_TURBO_ACTIVATION_RATIO, &msr); - fprintf(stderr, "cpu%d: MSR_TURBO_ACTIVATION_RATIO: 0x%08llx (", base_cpu, msr); - fprintf(stderr, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0x7F); - fprintf(stderr, " lock=%d", (unsigned int)(msr >> 31) & 1); - fprintf(stderr, ")\n"); + fprintf(outf, "cpu%d: MSR_TURBO_ACTIVATION_RATIO: 0x%08llx (", base_cpu, msr); + fprintf(outf, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0x7F); + fprintf(outf, " lock=%d", (unsigned int)(msr >> 31) & 1); + fprintf(outf, ")\n"); } void free_all_buffers(void) @@ -1486,7 +1497,7 @@ void free_all_buffers(void) */ FILE *fopen_or_die(const char *path, const char *mode) { - FILE *filep = fopen(path, "r"); + FILE *filep = fopen(path, mode); if (!filep) err(1, "%s: open failed", path); return filep; @@ -1740,7 +1751,7 @@ restart: for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); compute_average(EVEN_COUNTERS); format_all_counters(EVEN_COUNTERS); - flush_stdout(); + flush_output_stdout(); nanosleep(&interval_ts, NULL); retval = for_all_cpus(get_counters, EVEN_COUNTERS); if (retval < -1) { @@ -1754,7 +1765,7 @@ restart: for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS); compute_average(ODD_COUNTERS); format_all_counters(ODD_COUNTERS); - flush_stdout(); + flush_output_stdout(); } } @@ -2022,7 +2033,7 @@ int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p) return 0; if (cpu_migrate(cpu)) { - fprintf(stderr, "Could not migrate to CPU %d\n", cpu); + fprintf(outf, "Could not migrate to CPU %d\n", cpu); return -1; } @@ -2043,7 +2054,7 @@ int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p) epb_string = "custom"; break; } - fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string); + fprintf(outf, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string); return 0; } @@ -2066,14 +2077,14 @@ int print_hwp(struct thread_data *t, struct core_data *c, struct pkg_data *p) return 0; if (cpu_migrate(cpu)) { - fprintf(stderr, "Could not migrate to CPU %d\n", cpu); + fprintf(outf, "Could not migrate to CPU %d\n", cpu); return -1; } if (get_msr(cpu, MSR_PM_ENABLE, &msr)) return 0; - fprintf(stderr, "cpu%d: MSR_PM_ENABLE: 0x%08llx (%sHWP)\n", + fprintf(outf, "cpu%d: MSR_PM_ENABLE: 0x%08llx (%sHWP)\n", cpu, msr, (msr & (1 << 0)) ? "" : "No-"); /* MSR_PM_ENABLE[1] == 1 if HWP is enabled and MSRs visible */ @@ -2083,7 +2094,7 @@ int print_hwp(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_HWP_CAPABILITIES, &msr)) return 0; - fprintf(stderr, "cpu%d: MSR_HWP_CAPABILITIES: 0x%08llx " + fprintf(outf, "cpu%d: MSR_HWP_CAPABILITIES: 0x%08llx " "(high 0x%x guar 0x%x eff 0x%x low 0x%x)\n", cpu, msr, (unsigned int)HWP_HIGHEST_PERF(msr), @@ -2094,7 +2105,7 @@ int print_hwp(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_HWP_REQUEST, &msr)) return 0; - fprintf(stderr, "cpu%d: MSR_HWP_REQUEST: 0x%08llx " + fprintf(outf, "cpu%d: MSR_HWP_REQUEST: 0x%08llx " "(min 0x%x max 0x%x des 0x%x epp 0x%x window 0x%x pkg 0x%x)\n", cpu, msr, (unsigned int)(((msr) >> 0) & 0xff), @@ -2108,7 +2119,7 @@ int print_hwp(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_HWP_REQUEST_PKG, &msr)) return 0; - fprintf(stderr, "cpu%d: MSR_HWP_REQUEST_PKG: 0x%08llx " + fprintf(outf, "cpu%d: MSR_HWP_REQUEST_PKG: 0x%08llx " "(min 0x%x max 0x%x des 0x%x epp 0x%x window 0x%x)\n", cpu, msr, (unsigned int)(((msr) >> 0) & 0xff), @@ -2121,7 +2132,7 @@ int print_hwp(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_HWP_INTERRUPT, &msr)) return 0; - fprintf(stderr, "cpu%d: MSR_HWP_INTERRUPT: 0x%08llx " + fprintf(outf, "cpu%d: MSR_HWP_INTERRUPT: 0x%08llx " "(%s_Guaranteed_Perf_Change, %s_Excursion_Min)\n", cpu, msr, ((msr) & 0x1) ? "EN" : "Dis", @@ -2130,7 +2141,7 @@ int print_hwp(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_HWP_STATUS, &msr)) return 0; - fprintf(stderr, "cpu%d: MSR_HWP_STATUS: 0x%08llx " + fprintf(outf, "cpu%d: MSR_HWP_STATUS: 0x%08llx " "(%sGuaranteed_Perf_Change, %sExcursion_Min)\n", cpu, msr, ((msr) & 0x1) ? "" : "No-", @@ -2154,14 +2165,14 @@ int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data return 0; if (cpu_migrate(cpu)) { - fprintf(stderr, "Could not migrate to CPU %d\n", cpu); + fprintf(outf, "Could not migrate to CPU %d\n", cpu); return -1; } if (do_core_perf_limit_reasons) { get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr); - fprintf(stderr, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); - fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)", + fprintf(outf, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); + fprintf(outf, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)", (msr & 1 << 15) ? "bit15, " : "", (msr & 1 << 14) ? "bit14, " : "", (msr & 1 << 13) ? "Transitions, " : "", @@ -2176,7 +2187,7 @@ int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data (msr & 1 << 2) ? "bit2, " : "", (msr & 1 << 1) ? "ThermStatus, " : "", (msr & 1 << 0) ? "PROCHOT, " : ""); - fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n", + fprintf(outf, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n", (msr & 1 << 31) ? "bit31, " : "", (msr & 1 << 30) ? "bit30, " : "", (msr & 1 << 29) ? "Transitions, " : "", @@ -2195,8 +2206,8 @@ int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data } if (do_gfx_perf_limit_reasons) { get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr); - fprintf(stderr, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); - fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s)", + fprintf(outf, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); + fprintf(outf, " (Active: %s%s%s%s%s%s%s%s)", (msr & 1 << 0) ? "PROCHOT, " : "", (msr & 1 << 1) ? "ThermStatus, " : "", (msr & 1 << 4) ? "Graphics, " : "", @@ -2205,7 +2216,7 @@ int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data (msr & 1 << 9) ? "GFXPwr, " : "", (msr & 1 << 10) ? "PkgPwrL1, " : "", (msr & 1 << 11) ? "PkgPwrL2, " : ""); - fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s)\n", + fprintf(outf, " (Logged: %s%s%s%s%s%s%s%s)\n", (msr & 1 << 16) ? "PROCHOT, " : "", (msr & 1 << 17) ? "ThermStatus, " : "", (msr & 1 << 20) ? "Graphics, " : "", @@ -2217,15 +2228,15 @@ int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data } if (do_ring_perf_limit_reasons) { get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr); - fprintf(stderr, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); - fprintf(stderr, " (Active: %s%s%s%s%s%s)", + fprintf(outf, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); + fprintf(outf, " (Active: %s%s%s%s%s%s)", (msr & 1 << 0) ? "PROCHOT, " : "", (msr & 1 << 1) ? "ThermStatus, " : "", (msr & 1 << 6) ? "VR-Therm, " : "", (msr & 1 << 8) ? "Amps, " : "", (msr & 1 << 10) ? "PkgPwrL1, " : "", (msr & 1 << 11) ? "PkgPwrL2, " : ""); - fprintf(stderr, " (Logged: %s%s%s%s%s%s)\n", + fprintf(outf, " (Logged: %s%s%s%s%s%s)\n", (msr & 1 << 16) ? "PROCHOT, " : "", (msr & 1 << 17) ? "ThermStatus, " : "", (msr & 1 << 22) ? "VR-Therm, " : "", @@ -2348,7 +2359,7 @@ void rapl_probe(unsigned int family, unsigned int model) rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp; if (debug) - fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp); + fprintf(outf, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp); return; } @@ -2390,7 +2401,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p return 0; if (cpu_migrate(cpu)) { - fprintf(stderr, "Could not migrate to CPU %d\n", cpu); + fprintf(outf, "Could not migrate to CPU %d\n", cpu); return -1; } @@ -2399,7 +2410,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p return 0; dts = (msr >> 16) & 0x7F; - fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n", + fprintf(outf, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n", cpu, msr, tcc_activation_temp - dts); #ifdef THERM_DEBUG @@ -2408,7 +2419,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p dts = (msr >> 16) & 0x7F; dts2 = (msr >> 8) & 0x7F; - fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", + fprintf(outf, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); #endif } @@ -2422,7 +2433,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p dts = (msr >> 16) & 0x7F; resolution = (msr >> 27) & 0xF; - fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n", + fprintf(outf, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n", cpu, msr, tcc_activation_temp - dts, resolution); #ifdef THERM_DEBUG @@ -2431,7 +2442,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p dts = (msr >> 16) & 0x7F; dts2 = (msr >> 8) & 0x7F; - fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", + fprintf(outf, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); #endif } @@ -2441,7 +2452,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p void print_power_limit_msr(int cpu, unsigned long long msr, char *label) { - fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n", + fprintf(outf, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n", cpu, label, ((msr >> 15) & 1) ? "EN" : "DIS", ((msr >> 0) & 0x7FFF) * rapl_power_units, @@ -2465,7 +2476,7 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) cpu = t->cpu_id; if (cpu_migrate(cpu)) { - fprintf(stderr, "Could not migrate to CPU %d\n", cpu); + fprintf(outf, "Could not migrate to CPU %d\n", cpu); return -1; } @@ -2473,7 +2484,7 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) return -1; if (debug) { - fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx " + fprintf(outf, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx " "(%f Watts, %f Joules, %f sec.)\n", cpu, msr, rapl_power_units, rapl_energy_units, rapl_time_units); } @@ -2483,7 +2494,7 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) return -5; - fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", + fprintf(outf, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", cpu, msr, ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, @@ -2496,11 +2507,11 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr)) return -9; - fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n", + fprintf(outf, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n", cpu, msr, (msr >> 63) & 1 ? "": "UN"); print_power_limit_msr(cpu, msr, "PKG Limit #1"); - fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n", + fprintf(outf, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n", cpu, ((msr >> 47) & 1) ? "EN" : "DIS", ((msr >> 32) & 0x7FFF) * rapl_power_units, @@ -2512,7 +2523,7 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr)) return -6; - fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", + fprintf(outf, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", cpu, msr, ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, @@ -2522,7 +2533,7 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (do_rapl & RAPL_DRAM) { if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr)) return -9; - fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n", + fprintf(outf, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n", cpu, msr, (msr >> 31) & 1 ? "": "UN"); print_power_limit_msr(cpu, msr, "DRAM Limit"); @@ -2532,7 +2543,7 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_PP0_POLICY, &msr)) return -7; - fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF); + fprintf(outf, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF); } } if (do_rapl & RAPL_CORES) { @@ -2540,7 +2551,7 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr)) return -9; - fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n", + fprintf(outf, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n", cpu, msr, (msr >> 31) & 1 ? "": "UN"); print_power_limit_msr(cpu, msr, "Cores Limit"); } @@ -2550,11 +2561,11 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) if (get_msr(cpu, MSR_PP1_POLICY, &msr)) return -8; - fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF); + fprintf(outf, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF); if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr)) return -9; - fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n", + fprintf(outf, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n", cpu, msr, (msr >> 31) & 1 ? "": "UN"); print_power_limit_msr(cpu, msr, "GFX Limit"); } @@ -2680,16 +2691,16 @@ double slm_bclk(void) double freq; if (get_msr(base_cpu, MSR_FSB_FREQ, &msr)) - fprintf(stderr, "SLM BCLK: unknown\n"); + fprintf(outf, "SLM BCLK: unknown\n"); i = msr & 0xf; if (i >= SLM_BCLK_FREQS) { - fprintf(stderr, "SLM BCLK[%d] invalid\n", i); + fprintf(outf, "SLM BCLK[%d] invalid\n", i); msr = 3; } freq = slm_freq_table[i]; - fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq); + fprintf(outf, "SLM BCLK: %.1f Mhz\n", freq); return freq; } @@ -2732,13 +2743,13 @@ int set_temperature_target(struct thread_data *t, struct core_data *c, struct pk cpu = t->cpu_id; if (cpu_migrate(cpu)) { - fprintf(stderr, "Could not migrate to CPU %d\n", cpu); + fprintf(outf, "Could not migrate to CPU %d\n", cpu); return -1; } if (tcc_activation_temp_override != 0) { tcc_activation_temp = tcc_activation_temp_override; - fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n", + fprintf(outf, "cpu%d: Using cmdline TCC Target (%d C)\n", cpu, tcc_activation_temp); return 0; } @@ -2753,7 +2764,7 @@ int set_temperature_target(struct thread_data *t, struct core_data *c, struct pk target_c_local = (msr >> 16) & 0xFF; if (debug) - fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n", + fprintf(outf, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n", cpu, msr, target_c_local); if (!target_c_local) @@ -2765,7 +2776,7 @@ int set_temperature_target(struct thread_data *t, struct core_data *c, struct pk guess: tcc_activation_temp = TJMAX_DEFAULT; - fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n", + fprintf(outf, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n", cpu, tcc_activation_temp); return 0; @@ -2776,7 +2787,7 @@ void decode_misc_enable_msr(void) unsigned long long msr; if (!get_msr(base_cpu, MSR_IA32_MISC_ENABLE, &msr)) - fprintf(stderr, "cpu%d: MSR_IA32_MISC_ENABLE: 0x%08llx (%s %s %s)\n", + fprintf(outf, "cpu%d: MSR_IA32_MISC_ENABLE: 0x%08llx (%s %s %s)\n", base_cpu, msr, msr & (1 << 3) ? "TCC" : "", msr & (1 << 16) ? "EIST" : "", @@ -2798,7 +2809,7 @@ void decode_misc_pwr_mgmt_msr(void) return; if (!get_msr(base_cpu, MSR_MISC_PWR_MGMT, &msr)) - fprintf(stderr, "cpu%d: MSR_MISC_PWR_MGMT: 0x%08llx (%sable-EIST_Coordination %sable-EPB)\n", + fprintf(outf, "cpu%d: MSR_MISC_PWR_MGMT: 0x%08llx (%sable-EIST_Coordination %sable-EPB)\n", base_cpu, msr, msr & (1 << 0) ? "DIS" : "EN", msr & (1 << 1) ? "EN" : "DIS"); @@ -2817,7 +2828,7 @@ void process_cpuid() genuine_intel = 1; if (debug) - fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ", + fprintf(outf, "CPUID(0): %.4s%.4s%.4s ", (char *)&ebx, (char *)&edx, (char *)&ecx); __get_cpuid(1, &fms, &ebx, &ecx, &edx); @@ -2828,9 +2839,9 @@ void process_cpuid() model += ((fms >> 16) & 0xf) << 4; if (debug) { - fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", + fprintf(outf, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", max_level, family, model, stepping, family, model, stepping); - fprintf(stderr, "CPUID(1): %s %s %s %s %s %s %s %s\n", + fprintf(outf, "CPUID(1): %s %s %s %s %s %s %s %s\n", ecx & (1 << 0) ? "SSE3" : "-", ecx & (1 << 3) ? "MONITOR" : "-", ecx & (1 << 7) ? "EIST" : "-", @@ -2879,7 +2890,7 @@ void process_cpuid() has_epb = ecx & (1 << 3); if (debug) - fprintf(stderr, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sHWP, " + fprintf(outf, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sHWP, " "%sHWPnotify, %sHWPwindow, %sHWPepp, %sHWPpkg, %sEPB\n", has_aperf ? "" : "No-", do_dts ? "" : "No-", @@ -2907,7 +2918,7 @@ void process_cpuid() if (ebx_tsc != 0) { if (debug && (ebx != 0)) - fprintf(stderr, "CPUID(0x15): eax_crystal: %d ebx_tsc: %d ecx_crystal_hz: %d\n", + fprintf(outf, "CPUID(0x15): eax_crystal: %d ebx_tsc: %d ecx_crystal_hz: %d\n", eax_crystal, ebx_tsc, crystal_hz); if (crystal_hz == 0) @@ -2923,7 +2934,7 @@ void process_cpuid() if (crystal_hz) { tsc_hz = (unsigned long long) crystal_hz * ebx_tsc / eax_crystal; if (debug) - fprintf(stderr, "TSC: %lld MHz (%d Hz * %d / %d / 1000000)\n", + fprintf(outf, "TSC: %lld MHz (%d Hz * %d / %d / 1000000)\n", tsc_hz / 1000000, crystal_hz, ebx_tsc, eax_crystal); } } @@ -2938,7 +2949,7 @@ void process_cpuid() __get_cpuid(0x16, &base_mhz, &max_mhz, &bus_mhz, &edx); if (debug) - fprintf(stderr, "CPUID(0x16): base_mhz: %d max_mhz: %d bus_mhz: %d\n", + fprintf(outf, "CPUID(0x16): base_mhz: %d max_mhz: %d bus_mhz: %d\n", base_mhz, max_mhz, bus_mhz); } @@ -2973,7 +2984,7 @@ void process_cpuid() void help() { - fprintf(stderr, + fprintf(outf, "Usage: turbostat [OPTIONS][(--interval seconds) | COMMAND ...]\n" "\n" "Turbostat forks the specified COMMAND and prints statistics\n" @@ -2985,6 +2996,7 @@ void help() "--help print this help message\n" "--counter msr print 32-bit counter at address \"msr\"\n" "--Counter msr print 64-bit Counter at address \"msr\"\n" + "--out file create or truncate \"file\" for all output\n" "--msr msr print 32-bit value at address \"msr\"\n" "--MSR msr print 64-bit Value at address \"msr\"\n" "--version print version information\n" @@ -3029,7 +3041,7 @@ void topology_probe() show_cpu = 1; if (debug > 1) - fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); + fprintf(outf, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); if (cpus == NULL) @@ -3064,7 +3076,7 @@ void topology_probe() if (cpu_is_not_present(i)) { if (debug > 1) - fprintf(stderr, "cpu%d NOT PRESENT\n", i); + fprintf(outf, "cpu%d NOT PRESENT\n", i); continue; } cpus[i].core_id = get_core_id(i); @@ -3079,26 +3091,26 @@ void topology_probe() if (siblings > max_siblings) max_siblings = siblings; if (debug > 1) - fprintf(stderr, "cpu %d pkg %d core %d\n", + fprintf(outf, "cpu %d pkg %d core %d\n", i, cpus[i].physical_package_id, cpus[i].core_id); } topo.num_cores_per_pkg = max_core_id + 1; if (debug > 1) - fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n", + fprintf(outf, "max_core_id %d, sizing for %d cores per package\n", max_core_id, topo.num_cores_per_pkg); if (debug && !summary_only && topo.num_cores_per_pkg > 1) show_core = 1; topo.num_packages = max_package_id + 1; if (debug > 1) - fprintf(stderr, "max_package_id %d, sizing for %d packages\n", + fprintf(outf, "max_package_id %d, sizing for %d packages\n", max_package_id, topo.num_packages); if (debug && !summary_only && topo.num_packages > 1) show_pkg = 1; topo.num_threads_per_core = max_siblings; if (debug > 1) - fprintf(stderr, "max_siblings %d\n", max_siblings); + fprintf(outf, "max_siblings %d\n", max_siblings); free(cpus); } @@ -3207,7 +3219,7 @@ void set_base_cpu(void) err(-ENODEV, "No valid cpus found"); if (debug > 1) - fprintf(stderr, "base_cpu = %d\n", base_cpu); + fprintf(outf, "base_cpu = %d\n", base_cpu); } void turbostat_init() @@ -3274,9 +3286,10 @@ int fork_it(char **argv) for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); compute_average(EVEN_COUNTERS); format_all_counters(EVEN_COUNTERS); - flush_stderr(); - fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); + fprintf(outf, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); + + flush_output_stderr(); return status; } @@ -3293,13 +3306,13 @@ int get_and_dump_counters(void) if (status) return status; - flush_stdout(); + flush_output_stdout(); return status; } void print_version() { - fprintf(stderr, "turbostat version 4.10 10 Dec, 2015" + fprintf(outf, "turbostat version 4.10 10 Dec, 2015" " - Len Brown <lenb@kernel.org>\n"); } @@ -3317,6 +3330,7 @@ void cmdline(int argc, char **argv) {"Joules", no_argument, 0, 'J'}, {"MSR", required_argument, 0, 'M'}, {"msr", required_argument, 0, 'm'}, + {"out", required_argument, 0, 'o'}, {"Package", no_argument, 0, 'p'}, {"processor", no_argument, 0, 'p'}, {"Summary", no_argument, 0, 'S'}, @@ -3327,7 +3341,7 @@ void cmdline(int argc, char **argv) progname = argv[0]; - while ((opt = getopt_long_only(argc, argv, "+C:c:Ddhi:JM:m:PpST:v", + while ((opt = getopt_long_only(argc, argv, "+C:c:Ddhi:JM:m:o:PpST:v", long_options, &option_index)) != -1) { switch (opt) { case 'C': @@ -3351,7 +3365,7 @@ void cmdline(int argc, char **argv) double interval = strtod(optarg, NULL); if (interval < 0.001) { - fprintf(stderr, "interval %f seconds is too small\n", + fprintf(outf, "interval %f seconds is too small\n", interval); exit(2); } @@ -3369,6 +3383,9 @@ void cmdline(int argc, char **argv) case 'm': sscanf(optarg, "%x", &extra_msr_offset32); break; + case 'o': + outf = fopen_or_die(optarg, "w"); + break; case 'P': show_pkg_only++; break; @@ -3391,6 +3408,8 @@ void cmdline(int argc, char **argv) int main(int argc, char **argv) { + outf = stderr; + cmdline(argc, argv); if (debug) |
