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Merge branch 'tools-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 

* 'tools-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
  tools: turbostat: style updates
  tools: turbostat: fix bitwise and operand
This commit is contained in:
Linus Torvalds 2011-02-15 15:19:22 -08:00
parent b45bbf0772 a829eb4d7e
commit b9d4ba6b48
1 changed files with 98 additions and 102 deletions
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200
tools/power/x86/turbostat/turbostat.c
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@ -72,7 +72,7 @@ int need_reinitialize;
int num_cpus; int num_cpus;
typedef struct per_cpu_counters { struct counters {
unsigned long long tsc; /* per thread */ unsigned long long tsc; /* per thread */
unsigned long long aperf; /* per thread */ unsigned long long aperf; /* per thread */
unsigned long long mperf; /* per thread */ unsigned long long mperf; /* per thread */
@ -88,13 +88,13 @@ typedef struct per_cpu_counters {
int pkg; int pkg;
int core; int core;
int cpu; int cpu;
struct per_cpu_counters *next; struct counters *next;
} PCC; };
PCC *pcc_even; struct counters *cnt_even;
PCC *pcc_odd; struct counters *cnt_odd;
PCC *pcc_delta; struct counters *cnt_delta;
PCC *pcc_average; struct counters *cnt_average;
struct timeval tv_even; struct timeval tv_even;
struct timeval tv_odd; struct timeval tv_odd;
struct timeval tv_delta; struct timeval tv_delta;
@ -125,7 +125,7 @@ unsigned long long get_msr(int cpu, off_t offset)
return msr; return msr;
} }
void print_header() void print_header(void)
{ {
if (show_pkg) if (show_pkg)
fprintf(stderr, "pkg "); fprintf(stderr, "pkg ");
@ -160,39 +160,39 @@ void print_header()
putc('\n', stderr); putc('\n', stderr);
} }
void dump_pcc(PCC *pcc) void dump_cnt(struct counters *cnt)
{ {
fprintf(stderr, "package: %d ", pcc->pkg); fprintf(stderr, "package: %d ", cnt->pkg);
fprintf(stderr, "core:: %d ", pcc->core); fprintf(stderr, "core:: %d ", cnt->core);
fprintf(stderr, "CPU: %d ", pcc->cpu); fprintf(stderr, "CPU: %d ", cnt->cpu);
fprintf(stderr, "TSC: %016llX\n", pcc->tsc); fprintf(stderr, "TSC: %016llX\n", cnt->tsc);
fprintf(stderr, "c3: %016llX\n", pcc->c3); fprintf(stderr, "c3: %016llX\n", cnt->c3);
fprintf(stderr, "c6: %016llX\n", pcc->c6); fprintf(stderr, "c6: %016llX\n", cnt->c6);
fprintf(stderr, "c7: %016llX\n", pcc->c7); fprintf(stderr, "c7: %016llX\n", cnt->c7);
fprintf(stderr, "aperf: %016llX\n", pcc->aperf); fprintf(stderr, "aperf: %016llX\n", cnt->aperf);
fprintf(stderr, "pc2: %016llX\n", pcc->pc2); fprintf(stderr, "pc2: %016llX\n", cnt->pc2);
fprintf(stderr, "pc3: %016llX\n", pcc->pc3); fprintf(stderr, "pc3: %016llX\n", cnt->pc3);
fprintf(stderr, "pc6: %016llX\n", pcc->pc6); fprintf(stderr, "pc6: %016llX\n", cnt->pc6);
fprintf(stderr, "pc7: %016llX\n", pcc->pc7); fprintf(stderr, "pc7: %016llX\n", cnt->pc7);
fprintf(stderr, "msr0x%x: %016llX\n", extra_msr_offset, pcc->extra_msr); fprintf(stderr, "msr0x%x: %016llX\n", extra_msr_offset, cnt->extra_msr);
} }
void dump_list(PCC *pcc) void dump_list(struct counters *cnt)
{ {
printf("dump_list 0x%p\n", pcc); printf("dump_list 0x%p\n", cnt);
for (; pcc; pcc = pcc->next) for (; cnt; cnt = cnt->next)
dump_pcc(pcc); dump_cnt(cnt);
} }
void print_pcc(PCC *p) void print_cnt(struct counters *p)
{ {
double interval_float; double interval_float;
interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
/* topology columns, print blanks on 1st (average) line */ /* topology columns, print blanks on 1st (average) line */
if (p == pcc_average) { if (p == cnt_average) {
if (show_pkg) if (show_pkg)
fprintf(stderr, " "); fprintf(stderr, " ");
if (show_core) if (show_core)
@ -262,24 +262,24 @@ void print_pcc(PCC *p)
putc('\n', stderr); putc('\n', stderr);
} }
void print_counters(PCC *cnt) void print_counters(struct counters *counters)
{ {
PCC *pcc; struct counters *cnt;
print_header(); print_header();
if (num_cpus > 1) if (num_cpus > 1)
print_pcc(pcc_average); print_cnt(cnt_average);
for (pcc = cnt; pcc != NULL; pcc = pcc->next) for (cnt = counters; cnt != NULL; cnt = cnt->next)
print_pcc(pcc); print_cnt(cnt);
} }
#define SUBTRACT_COUNTER(after, before, delta) (delta = (after - before), (before > after)) #define SUBTRACT_COUNTER(after, before, delta) (delta = (after - before), (before > after))
int compute_delta(struct counters *after,
int compute_delta(PCC *after, PCC *before, PCC *delta) struct counters *before, struct counters *delta)
{ {
int errors = 0; int errors = 0;
int perf_err = 0; int perf_err = 0;
@ -391,20 +391,20 @@ int compute_delta(PCC *after, PCC *before, PCC *delta)
delta->extra_msr = after->extra_msr; delta->extra_msr = after->extra_msr;
if (errors) { if (errors) {
fprintf(stderr, "ERROR cpu%d before:\n", before->cpu); fprintf(stderr, "ERROR cpu%d before:\n", before->cpu);
dump_pcc(before); dump_cnt(before);
fprintf(stderr, "ERROR cpu%d after:\n", before->cpu); fprintf(stderr, "ERROR cpu%d after:\n", before->cpu);
dump_pcc(after); dump_cnt(after);
errors = 0; errors = 0;
} }
} }
return 0; return 0;
} }
void compute_average(PCC *delta, PCC *avg) void compute_average(struct counters *delta, struct counters *avg)
{ {
PCC *sum; struct counters *sum;
sum = calloc(1, sizeof(PCC)); sum = calloc(1, sizeof(struct counters));
if (sum == NULL) { if (sum == NULL) {
perror("calloc sum"); perror("calloc sum");
exit(1); exit(1);
@ -438,35 +438,34 @@ void compute_average(PCC *delta, PCC *avg)
free(sum); free(sum);
} }
void get_counters(PCC *pcc) void get_counters(struct counters *cnt)
{ {
for ( ; pcc; pcc = pcc->next) { for ( ; cnt; cnt = cnt->next) {
pcc->tsc = get_msr(pcc->cpu, MSR_TSC); cnt->tsc = get_msr(cnt->cpu, MSR_TSC);
if (do_nhm_cstates) if (do_nhm_cstates)
pcc->c3 = get_msr(pcc->cpu, MSR_CORE_C3_RESIDENCY); cnt->c3 = get_msr(cnt->cpu, MSR_CORE_C3_RESIDENCY);
if (do_nhm_cstates) if (do_nhm_cstates)
pcc->c6 = get_msr(pcc->cpu, MSR_CORE_C6_RESIDENCY); cnt->c6 = get_msr(cnt->cpu, MSR_CORE_C6_RESIDENCY);
if (do_snb_cstates) if (do_snb_cstates)
pcc->c7 = get_msr(pcc->cpu, MSR_CORE_C7_RESIDENCY); cnt->c7 = get_msr(cnt->cpu, MSR_CORE_C7_RESIDENCY);
if (has_aperf) if (has_aperf)
pcc->aperf = get_msr(pcc->cpu, MSR_APERF); cnt->aperf = get_msr(cnt->cpu, MSR_APERF);
if (has_aperf) if (has_aperf)
pcc->mperf = get_msr(pcc->cpu, MSR_MPERF); cnt->mperf = get_msr(cnt->cpu, MSR_MPERF);
if (do_snb_cstates) if (do_snb_cstates)
pcc->pc2 = get_msr(pcc->cpu, MSR_PKG_C2_RESIDENCY); cnt->pc2 = get_msr(cnt->cpu, MSR_PKG_C2_RESIDENCY);
if (do_nhm_cstates) if (do_nhm_cstates)
pcc->pc3 = get_msr(pcc->cpu, MSR_PKG_C3_RESIDENCY); cnt->pc3 = get_msr(cnt->cpu, MSR_PKG_C3_RESIDENCY);
if (do_nhm_cstates) if (do_nhm_cstates)
pcc->pc6 = get_msr(pcc->cpu, MSR_PKG_C6_RESIDENCY); cnt->pc6 = get_msr(cnt->cpu, MSR_PKG_C6_RESIDENCY);
if (do_snb_cstates) if (do_snb_cstates)
pcc->pc7 = get_msr(pcc->cpu, MSR_PKG_C7_RESIDENCY); cnt->pc7 = get_msr(cnt->cpu, MSR_PKG_C7_RESIDENCY);
if (extra_msr_offset) if (extra_msr_offset)
pcc->extra_msr = get_msr(pcc->cpu, extra_msr_offset); cnt->extra_msr = get_msr(cnt->cpu, extra_msr_offset);
} }
} }
void print_nehalem_info(void)
void print_nehalem_info()
{ {
unsigned long long msr; unsigned long long msr;
unsigned int ratio; unsigned int ratio;
@ -514,38 +513,38 @@ void print_nehalem_info()
} }
void free_counter_list(PCC *list) void free_counter_list(struct counters *list)
{ {
PCC *p; struct counters *p;
for (p = list; p; ) { for (p = list; p; ) {
PCC *free_me; struct counters *free_me;
free_me = p; free_me = p;
p = p->next; p = p->next;
free(free_me); free(free_me);
} }
return;
} }
void free_all_counters(void) void free_all_counters(void)
{ {
free_counter_list(pcc_even); free_counter_list(cnt_even);
pcc_even = NULL; cnt_even = NULL;
free_counter_list(pcc_odd); free_counter_list(cnt_odd);
pcc_odd = NULL; cnt_odd = NULL;
free_counter_list(pcc_delta); free_counter_list(cnt_delta);
pcc_delta = NULL; cnt_delta = NULL;
free_counter_list(pcc_average); free_counter_list(cnt_average);
pcc_average = NULL; cnt_average = NULL;
} }
void insert_cpu_counters(PCC **list, PCC *new) void insert_counters(struct counters **list,
struct counters *new)
{ {
PCC *prev; struct counters *prev;
/* /*
* list was empty * list was empty
@ -594,18 +593,16 @@ void insert_cpu_counters(PCC **list, PCC *new)
*/ */
new->next = prev->next; new->next = prev->next;
prev->next = new; prev->next = new;
return;
} }
void alloc_new_cpu_counters(int pkg, int core, int cpu) void alloc_new_counters(int pkg, int core, int cpu)
{ {
PCC *new; struct counters *new;
if (verbose > 1) if (verbose > 1)
printf("pkg%d core%d, cpu%d\n", pkg, core, cpu); printf("pkg%d core%d, cpu%d\n", pkg, core, cpu);
new = (PCC *)calloc(1, sizeof(PCC)); new = (struct counters *)calloc(1, sizeof(struct counters));
if (new == NULL) { if (new == NULL) {
perror("calloc"); perror("calloc");
exit(1); exit(1);
@ -613,9 +610,10 @@ void alloc_new_cpu_counters(int pkg, int core, int cpu)
new->pkg = pkg; new->pkg = pkg;
new->core = core; new->core = core;
new->cpu = cpu; new->cpu = cpu;
insert_cpu_counters(&pcc_odd, new); insert_counters(&cnt_odd, new);
new = (PCC *)calloc(1, sizeof(PCC)); new = (struct counters *)calloc(1,
sizeof(struct counters));
if (new == NULL) { if (new == NULL) {
perror("calloc"); perror("calloc");
exit(1); exit(1);
@ -623,9 +621,9 @@ void alloc_new_cpu_counters(int pkg, int core, int cpu)
new->pkg = pkg; new->pkg = pkg;
new->core = core; new->core = core;
new->cpu = cpu; new->cpu = cpu;
insert_cpu_counters(&pcc_even, new); insert_counters(&cnt_even, new);
new = (PCC *)calloc(1, sizeof(PCC)); new = (struct counters *)calloc(1, sizeof(struct counters));
if (new == NULL) { if (new == NULL) {
perror("calloc"); perror("calloc");
exit(1); exit(1);
@ -633,9 +631,9 @@ void alloc_new_cpu_counters(int pkg, int core, int cpu)
new->pkg = pkg; new->pkg = pkg;
new->core = core; new->core = core;
new->cpu = cpu; new->cpu = cpu;
insert_cpu_counters(&pcc_delta, new); insert_counters(&cnt_delta, new);
new = (PCC *)calloc(1, sizeof(PCC)); new = (struct counters *)calloc(1, sizeof(struct counters));
if (new == NULL) { if (new == NULL) {
perror("calloc"); perror("calloc");
exit(1); exit(1);
@ -643,7 +641,7 @@ void alloc_new_cpu_counters(int pkg, int core, int cpu)
new->pkg = pkg; new->pkg = pkg;
new->core = core; new->core = core;
new->cpu = cpu; new->cpu = cpu;
pcc_average = new; cnt_average = new;
} }
int get_physical_package_id(int cpu) int get_physical_package_id(int cpu)
@ -719,7 +717,7 @@ void re_initialize(void)
{ {
printf("turbostat: topology changed, re-initializing.\n"); printf("turbostat: topology changed, re-initializing.\n");
free_all_counters(); free_all_counters();
num_cpus = for_all_cpus(alloc_new_cpu_counters); num_cpus = for_all_cpus(alloc_new_counters);
need_reinitialize = 0; need_reinitialize = 0;
printf("num_cpus is now %d\n", num_cpus); printf("num_cpus is now %d\n", num_cpus);
} }
@ -728,7 +726,7 @@ void dummy(int pkg, int core, int cpu) { return; }
/* /*
* check to see if a cpu came on-line * check to see if a cpu came on-line
*/ */
void verify_num_cpus() void verify_num_cpus(void)
{ {
int new_num_cpus; int new_num_cpus;
@ -740,14 +738,12 @@ void verify_num_cpus()
num_cpus, new_num_cpus); num_cpus, new_num_cpus);
need_reinitialize = 1; need_reinitialize = 1;
} }
return;
} }
void turbostat_loop() void turbostat_loop()
{ {
restart: restart:
get_counters(pcc_even); get_counters(cnt_even);
gettimeofday(&tv_even, (struct timezone *)NULL); gettimeofday(&tv_even, (struct timezone *)NULL);
while (1) { while (1) {
@ -757,24 +753,24 @@ restart:
goto restart; goto restart;
} }
sleep(interval_sec); sleep(interval_sec);
get_counters(pcc_odd); get_counters(cnt_odd);
gettimeofday(&tv_odd, (struct timezone *)NULL); gettimeofday(&tv_odd, (struct timezone *)NULL);
compute_delta(pcc_odd, pcc_even, pcc_delta); compute_delta(cnt_odd, cnt_even, cnt_delta);
timersub(&tv_odd, &tv_even, &tv_delta); timersub(&tv_odd, &tv_even, &tv_delta);
compute_average(pcc_delta, pcc_average); compute_average(cnt_delta, cnt_average);
print_counters(pcc_delta); print_counters(cnt_delta);
if (need_reinitialize) { if (need_reinitialize) {
re_initialize(); re_initialize();
goto restart; goto restart;
} }
sleep(interval_sec); sleep(interval_sec);
get_counters(pcc_even); get_counters(cnt_even);
gettimeofday(&tv_even, (struct timezone *)NULL); gettimeofday(&tv_even, (struct timezone *)NULL);
compute_delta(pcc_even, pcc_odd, pcc_delta); compute_delta(cnt_even, cnt_odd, cnt_delta);
timersub(&tv_even, &tv_odd, &tv_delta); timersub(&tv_even, &tv_odd, &tv_delta);
compute_average(pcc_delta, pcc_average); compute_average(cnt_delta, cnt_average);
print_counters(pcc_delta); print_counters(cnt_delta);
} }
} }
@ -892,7 +888,7 @@ void check_cpuid()
* this check is valid for both Intel and AMD * this check is valid for both Intel and AMD
*/ */
asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007)); asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007));
has_invariant_tsc = edx && (1 << 8); has_invariant_tsc = edx & (1 << 8);
if (!has_invariant_tsc) { if (!has_invariant_tsc) {
fprintf(stderr, "No invariant TSC\n"); fprintf(stderr, "No invariant TSC\n");
@ -905,7 +901,7 @@ void check_cpuid()
*/ */
asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6)); asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6));
has_aperf = ecx && (1 << 0); has_aperf = ecx & (1 << 0);
if (!has_aperf) { if (!has_aperf) {
fprintf(stderr, "No APERF MSR\n"); fprintf(stderr, "No APERF MSR\n");
exit(1); exit(1);
@ -952,7 +948,7 @@ void turbostat_init()
check_dev_msr(); check_dev_msr();
check_super_user(); check_super_user();
num_cpus = for_all_cpus(alloc_new_cpu_counters); num_cpus = for_all_cpus(alloc_new_counters);
if (verbose) if (verbose)
print_nehalem_info(); print_nehalem_info();
@ -962,7 +958,7 @@ int fork_it(char **argv)
{ {
int retval; int retval;
pid_t child_pid; pid_t child_pid;
get_counters(pcc_even); get_counters(cnt_even);
gettimeofday(&tv_even, (struct timezone *)NULL); gettimeofday(&tv_even, (struct timezone *)NULL);
child_pid = fork(); child_pid = fork();
@ -985,14 +981,14 @@ int fork_it(char **argv)
exit(1); exit(1);
} }
} }
get_counters(pcc_odd); get_counters(cnt_odd);
gettimeofday(&tv_odd, (struct timezone *)NULL); gettimeofday(&tv_odd, (struct timezone *)NULL);
retval = compute_delta(pcc_odd, pcc_even, pcc_delta); retval = compute_delta(cnt_odd, cnt_even, cnt_delta);
timersub(&tv_odd, &tv_even, &tv_delta); timersub(&tv_odd, &tv_even, &tv_delta);
compute_average(pcc_delta, pcc_average); compute_average(cnt_delta, cnt_average);
if (!retval) if (!retval)
print_counters(pcc_delta); print_counters(cnt_delta);
fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);; fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);;