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authorLen Brown <len.brown@intel.com>2012-09-22 01:25:08 -0400
committerLen Brown <len.brown@intel.com>2012-09-27 22:04:56 -0400
commit8e180f3cb6b7510a3bdf14e16ce87c9f5d86f102 (patch)
tree2a7b3ac9789a47d1bfb9ccbb7a9a4fa31f91b61d /tools/power/x86/turbostat/turbostat.c
parent2f32edf12c1eafc8e5b1b0337360993fde1b3565 (diff)
downloadvexpress-lsk-8e180f3cb6b7510a3bdf14e16ce87c9f5d86f102.tar.gz
tools/power turbostat: add [-d MSR#][-D MSR#] options to print counter deltas
# turbostat -d 0x34 is useful for printing the number of SMI's within an interval on Nehalem and newer processors. where # turbostat -m 0x34 will simply print out the total SMI count since reset. Suggested-by: Andi Kleen Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools/power/x86/turbostat/turbostat.c')
-rw-r--r--tools/power/x86/turbostat/turbostat.c95
1 files changed, 63 insertions, 32 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 946e9ab48ed..e38976c0b0a 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -65,6 +65,8 @@ unsigned int do_nehalem_turbo_ratio_limit;
unsigned int do_ivt_turbo_ratio_limit;
unsigned int extra_msr_offset32;
unsigned int extra_msr_offset64;
+unsigned int extra_delta_offset32;
+unsigned int extra_delta_offset64;
double bclk;
unsigned int show_pkg;
unsigned int show_core;
@@ -86,7 +88,9 @@ struct thread_data {
unsigned long long mperf;
unsigned long long c1; /* derived */
unsigned long long extra_msr64;
- unsigned int extra_msr32;
+ unsigned long long extra_delta64;
+ unsigned long long extra_msr32;
+ unsigned long long extra_delta32;
unsigned int cpu_id;
unsigned int flags;
#define CPU_IS_FIRST_THREAD_IN_CORE 0x2
@@ -208,24 +212,6 @@ int get_msr(int cpu, off_t offset, unsigned long long *msr)
return 0;
}
-/*
- * Truncate the 8 bytes we read from /dev/cpu/.../msr
- * to the 4 bytes requested
- */
-
-int get_msr32(int cpu, off_t offset, unsigned int *msr)
-{
- int retval;
-
- unsigned long long msr64;
-
- retval = get_msr(cpu, offset, &msr64);
- *msr = (unsigned int) msr64;
-
- return retval;
-}
-
-
void print_header(void)
{
if (show_pkg)
@@ -243,10 +229,14 @@ void print_header(void)
if (has_aperf)
outp += sprintf(outp, " GHz");
outp += sprintf(outp, " TSC");
+ if (extra_delta_offset32)
+ outp += sprintf(outp, " delta 0x%03X", extra_delta_offset32);
+ if (extra_delta_offset64)
+ outp += sprintf(outp, " DELTA 0x%03X", extra_delta_offset64);
if (extra_msr_offset32)
- outp += sprintf(outp, " MSR 0x%04X", extra_msr_offset32);
+ outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32);
if (extra_msr_offset64)
- outp += sprintf(outp, " MSR 0x%04X", extra_msr_offset64);
+ outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64);
if (do_nhm_cstates)
outp += sprintf(outp, " %%c1");
if (do_nhm_cstates)
@@ -278,7 +268,11 @@ int dump_counters(struct thread_data *t, struct core_data *c,
fprintf(stderr, "aperf: %016llX\n", t->aperf);
fprintf(stderr, "mperf: %016llX\n", t->mperf);
fprintf(stderr, "c1: %016llX\n", t->c1);
- fprintf(stderr, "msr0x%x: %08X\n",
+ fprintf(stderr, "msr0x%x: %08llX\n",
+ extra_delta_offset32, t->extra_delta32);
+ fprintf(stderr, "msr0x%x: %016llX\n",
+ extra_delta_offset64, t->extra_delta64);
+ fprintf(stderr, "msr0x%x: %08llX\n",
extra_msr_offset32, t->extra_msr32);
fprintf(stderr, "msr0x%x: %016llX\n",
extra_msr_offset64, t->extra_msr64);
@@ -385,9 +379,16 @@ int format_counters(struct thread_data *t, struct core_data *c,
/* TSC */
outp += sprintf(outp, "%5.2f", 1.0 * t->tsc/units/interval_float);
+ /* delta */
+ if (extra_delta_offset32)
+ outp += sprintf(outp, " %11llu", t->extra_delta32);
+
+ /* DELTA */
+ if (extra_delta_offset64)
+ outp += sprintf(outp, " %11llu", t->extra_delta64);
/* msr */
if (extra_msr_offset32)
- outp += sprintf(outp, " 0x%08x", t->extra_msr32);
+ outp += sprintf(outp, " 0x%08llx", t->extra_msr32);
/* MSR */
if (extra_msr_offset64)
@@ -533,8 +534,13 @@ delta_thread(struct thread_data *new, struct thread_data *old,
old->mperf = 1; /* divide by 0 protection */
}
+ old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
+ old->extra_delta32 &= 0xFFFFFFFF;
+
+ old->extra_delta64 = new->extra_delta64 - old->extra_delta64;
+
/*
- * Extra MSR is a snapshot, simply copy latest w/o subtracting
+ * Extra MSR is just a snapshot, simply copy latest w/o subtracting
*/
old->extra_msr32 = new->extra_msr32;
old->extra_msr64 = new->extra_msr64;
@@ -565,6 +571,9 @@ void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data
t->mperf = 0;
t->c1 = 0;
+ t->extra_delta32 = 0;
+ t->extra_delta64 = 0;
+
/* tells format_counters to dump all fields from this set */
t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
@@ -585,6 +594,9 @@ int sum_counters(struct thread_data *t, struct core_data *c,
average.threads.mperf += t->mperf;
average.threads.c1 += t->c1;
+ average.threads.extra_delta32 += t->extra_delta32;
+ average.threads.extra_delta64 += t->extra_delta64;
+
/* sum per-core values only for 1st thread in core */
if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
return 0;
@@ -620,6 +632,11 @@ void compute_average(struct thread_data *t, struct core_data *c,
average.threads.mperf /= topo.num_cpus;
average.threads.c1 /= topo.num_cpus;
+ average.threads.extra_delta32 /= topo.num_cpus;
+ average.threads.extra_delta32 &= 0xFFFFFFFF;
+
+ average.threads.extra_delta64 /= topo.num_cpus;
+
average.cores.c3 /= topo.num_cores;
average.cores.c6 /= topo.num_cores;
average.cores.c7 /= topo.num_cores;
@@ -661,10 +678,22 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
return -4;
}
- if (extra_msr_offset32)
- if (get_msr32(cpu, extra_msr_offset32, &t->extra_msr32))
+ if (extra_delta_offset32) {
+ if (get_msr(cpu, extra_delta_offset32, &t->extra_delta32))
+ return -5;
+ t->extra_delta32 &= 0xFFFFFFFF;
+ }
+
+ if (extra_delta_offset64)
+ if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
return -5;
+ if (extra_msr_offset32) {
+ if (get_msr(cpu, extra_msr_offset32, &t->extra_msr32))
+ return -5;
+ t->extra_msr32 &= 0xFFFFFFFF;
+ }
+
if (extra_msr_offset64)
if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
return -5;
@@ -1275,7 +1304,7 @@ void check_cpuid()
void usage()
{
- fprintf(stderr, "%s: [-v] [-m msr#] [-M MSR#] [-i interval_sec | command ...]\n",
+ fprintf(stderr, "%s: [-v][-d MSR#][-D MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n",
progname);
exit(1);
}
@@ -1565,7 +1594,7 @@ void cmdline(int argc, char **argv)
progname = argv[0];
- while ((opt = getopt(argc, argv, "+cpsvi:m:M:")) != -1) {
+ while ((opt = getopt(argc, argv, "+cpsvid:D:m:M:")) != -1) {
switch (opt) {
case 'c':
show_core_only++;
@@ -1582,15 +1611,17 @@ void cmdline(int argc, char **argv)
case 'i':
interval_sec = atoi(optarg);
break;
+ case 'd':
+ sscanf(optarg, "%x", &extra_delta_offset32);
+ break;
+ case 'D':
+ sscanf(optarg, "%x", &extra_delta_offset64);
+ break;
case 'm':
sscanf(optarg, "%x", &extra_msr_offset32);
- if (verbose > 1)
- fprintf(stderr, "msr 0x%X\n", extra_msr_offset32);
break;
case 'M':
sscanf(optarg, "%x", &extra_msr_offset64);
- if (verbose > 1)
- fprintf(stderr, "MSR 0x%X\n", extra_msr_offset64);
break;
default:
usage();