@@ -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:
@@ -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)