diff options
Diffstat (limited to 'tools/power/cpupower')
| -rw-r--r-- | tools/power/cpupower/.gitignore | 7 | ||||
| -rw-r--r-- | tools/power/cpupower/Makefile | 3 | ||||
| -rw-r--r-- | tools/power/cpupower/debug/i386/Makefile | 5 | ||||
| -rw-r--r-- | tools/power/cpupower/man/cpupower-monitor.1 | 15 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/cpuid.c | 2 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/helpers.h | 18 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/sysfs.c | 19 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/topology.c | 53 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c | 21 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h | 17 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/idle_monitor/snb_idle.c | 10 |
11 files changed, 110 insertions, 60 deletions
diff --git a/tools/power/cpupower/.gitignore b/tools/power/cpupower/.gitignore index 8a83dd2ffc11..d42073f12609 100644 --- a/tools/power/cpupower/.gitignore +++ b/tools/power/cpupower/.gitignore @@ -20,3 +20,10 @@ utils/cpufreq-set.o utils/cpufreq-aperf.o cpupower bench/cpufreq-bench +debug/kernel/Module.symvers +debug/i386/centrino-decode +debug/i386/dump_psb +debug/i386/intel_gsic +debug/i386/powernow-k8-decode +debug/x86_64/centrino-decode +debug/x86_64/powernow-k8-decode diff --git a/tools/power/cpupower/Makefile b/tools/power/cpupower/Makefile index cf397bd26d0c..d875a74a3bdf 100644 --- a/tools/power/cpupower/Makefile +++ b/tools/power/cpupower/Makefile @@ -253,7 +253,8 @@ clean: | xargs rm -f -rm -f $(OUTPUT)cpupower -rm -f $(OUTPUT)libcpupower.so* - -rm -rf $(OUTPUT)po/*.{gmo,pot} + -rm -rf $(OUTPUT)po/*.gmo + -rm -rf $(OUTPUT)po/*.pot $(MAKE) -C bench O=$(OUTPUT) clean diff --git a/tools/power/cpupower/debug/i386/Makefile b/tools/power/cpupower/debug/i386/Makefile index 3ba158f0e287..c05cc0ac80c7 100644 --- a/tools/power/cpupower/debug/i386/Makefile +++ b/tools/power/cpupower/debug/i386/Makefile @@ -26,7 +26,10 @@ $(OUTPUT)powernow-k8-decode: powernow-k8-decode.c all: $(OUTPUT)centrino-decode $(OUTPUT)dump_psb $(OUTPUT)intel_gsic $(OUTPUT)powernow-k8-decode clean: - rm -rf $(OUTPUT){centrino-decode,dump_psb,intel_gsic,powernow-k8-decode} + rm -rf $(OUTPUT)centrino-decode + rm -rf $(OUTPUT)dump_psb + rm -rf $(OUTPUT)intel_gsic + rm -rf $(OUTPUT)powernow-k8-decode install: $(INSTALL) -d $(DESTDIR)${bindir} diff --git a/tools/power/cpupower/man/cpupower-monitor.1 b/tools/power/cpupower/man/cpupower-monitor.1 index 1141c2073719..e01c35d13b6e 100644 --- a/tools/power/cpupower/man/cpupower-monitor.1 +++ b/tools/power/cpupower/man/cpupower-monitor.1 @@ -7,11 +7,11 @@ cpupower\-monitor \- Report processor frequency and idle statistics .RB "\-l" .B cpupower monitor -.RB [ "\-m <mon1>," [ "<mon2>,..." ] ] +.RB [ -c ] [ "\-m <mon1>," [ "<mon2>,..." ] ] .RB [ "\-i seconds" ] .br .B cpupower monitor -.RB [ "\-m <mon1>," [ "<mon2>,..." ] ] +.RB [ -c ][ "\-m <mon1>," [ "<mon2>,..." ] ] .RB command .br .SH DESCRIPTION @@ -64,6 +64,17 @@ Only display specific monitors. Use the monitor string(s) provided by \-l option Measure intervall. .RE .PP +\-c +.RS 4 +Schedule the process on every core before starting and ending measuring. +This could be needed for the Idle_Stats monitor when no other MSR based +monitor (has to be run on the core that is measured) is run in parallel. +This is to wake up the processors from deeper sleep states and let the +kernel re +-account its cpuidle (C-state) information before reading the +cpuidle timings from sysfs. +.RE +.PP command .RS 4 Measure idle and frequency characteristics of an arbitrary command/workload. diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c index 906895d21cce..93b0aa74ca03 100644 --- a/tools/power/cpupower/utils/helpers/cpuid.c +++ b/tools/power/cpupower/utils/helpers/cpuid.c @@ -158,6 +158,8 @@ out: cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO; case 0x2A: /* SNB */ case 0x2D: /* SNB Xeon */ + case 0x3A: /* IVB */ + case 0x3E: /* IVB Xeon */ cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO; cpu_info->caps |= CPUPOWER_CAP_IS_SNB; break; diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h index 2eb584cf2f55..aa9e95486a2d 100644 --- a/tools/power/cpupower/utils/helpers/helpers.h +++ b/tools/power/cpupower/utils/helpers/helpers.h @@ -92,6 +92,14 @@ extern int get_cpu_info(unsigned int cpu, struct cpupower_cpu_info *cpu_info); extern struct cpupower_cpu_info cpupower_cpu_info; /* cpuid and cpuinfo helpers **************************/ +struct cpuid_core_info { + int pkg; + int core; + int cpu; + + /* flags */ + unsigned int is_online:1; +}; /* CPU topology/hierarchy parsing ******************/ struct cpupower_topology { @@ -101,18 +109,12 @@ struct cpupower_topology { unsigned int threads; /* per core */ /* Array gets mallocated with cores entries, holding per core info */ - struct { - int pkg; - int core; - int cpu; - - /* flags */ - unsigned int is_online:1; - } *core_info; + struct cpuid_core_info *core_info; }; extern int get_cpu_topology(struct cpupower_topology *cpu_top); extern void cpu_topology_release(struct cpupower_topology cpu_top); + /* CPU topology/hierarchy parsing ******************/ /* X86 ONLY ****************************************/ diff --git a/tools/power/cpupower/utils/helpers/sysfs.c b/tools/power/cpupower/utils/helpers/sysfs.c index 96e28c124b5c..38ab91629463 100644 --- a/tools/power/cpupower/utils/helpers/sysfs.c +++ b/tools/power/cpupower/utils/helpers/sysfs.c @@ -37,25 +37,6 @@ unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen) return (unsigned int) numread; } -static unsigned int sysfs_write_file(const char *path, - const char *value, size_t len) -{ - int fd; - ssize_t numwrite; - - fd = open(path, O_WRONLY); - if (fd == -1) - return 0; - - numwrite = write(fd, value, len); - if (numwrite < 1) { - close(fd); - return 0; - } - close(fd); - return (unsigned int) numwrite; -} - /* * Detect whether a CPU is online * diff --git a/tools/power/cpupower/utils/helpers/topology.c b/tools/power/cpupower/utils/helpers/topology.c index 4eae2c47ba48..c13120af519b 100644 --- a/tools/power/cpupower/utils/helpers/topology.c +++ b/tools/power/cpupower/utils/helpers/topology.c @@ -20,9 +20,8 @@ #include <helpers/sysfs.h> /* returns -1 on failure, 0 on success */ -int sysfs_topology_read_file(unsigned int cpu, const char *fname) +static int sysfs_topology_read_file(unsigned int cpu, const char *fname, int *result) { - unsigned long value; char linebuf[MAX_LINE_LEN]; char *endp; char path[SYSFS_PATH_MAX]; @@ -31,20 +30,12 @@ int sysfs_topology_read_file(unsigned int cpu, const char *fname) cpu, fname); if (sysfs_read_file(path, linebuf, MAX_LINE_LEN) == 0) return -1; - value = strtoul(linebuf, &endp, 0); + *result = strtol(linebuf, &endp, 0); if (endp == linebuf || errno == ERANGE) return -1; - return value; + return 0; } -struct cpuid_core_info { - unsigned int pkg; - unsigned int thread; - unsigned int cpu; - /* flags */ - unsigned int is_online:1; -}; - static int __compare(const void *t1, const void *t2) { struct cpuid_core_info *top1 = (struct cpuid_core_info *)t1; @@ -53,9 +44,9 @@ static int __compare(const void *t1, const void *t2) return -1; else if (top1->pkg > top2->pkg) return 1; - else if (top1->thread < top2->thread) + else if (top1->core < top2->core) return -1; - else if (top1->thread > top2->thread) + else if (top1->core > top2->core) return 1; else if (top1->cpu < top2->cpu) return -1; @@ -73,28 +64,42 @@ static int __compare(const void *t1, const void *t2) */ int get_cpu_topology(struct cpupower_topology *cpu_top) { - int cpu, cpus = sysconf(_SC_NPROCESSORS_CONF); + int cpu, last_pkg, cpus = sysconf(_SC_NPROCESSORS_CONF); - cpu_top->core_info = malloc(sizeof(struct cpupower_topology) * cpus); + cpu_top->core_info = malloc(sizeof(struct cpuid_core_info) * cpus); if (cpu_top->core_info == NULL) return -ENOMEM; cpu_top->pkgs = cpu_top->cores = 0; for (cpu = 0; cpu < cpus; cpu++) { cpu_top->core_info[cpu].cpu = cpu; cpu_top->core_info[cpu].is_online = sysfs_is_cpu_online(cpu); - cpu_top->core_info[cpu].pkg = - sysfs_topology_read_file(cpu, "physical_package_id"); - if ((int)cpu_top->core_info[cpu].pkg != -1 && - cpu_top->core_info[cpu].pkg > cpu_top->pkgs) - cpu_top->pkgs = cpu_top->core_info[cpu].pkg; - cpu_top->core_info[cpu].core = - sysfs_topology_read_file(cpu, "core_id"); + if(sysfs_topology_read_file( + cpu, + "physical_package_id", + &(cpu_top->core_info[cpu].pkg)) < 0) + return -1; + if(sysfs_topology_read_file( + cpu, + "core_id", + &(cpu_top->core_info[cpu].core)) < 0) + return -1; } - cpu_top->pkgs++; qsort(cpu_top->core_info, cpus, sizeof(struct cpuid_core_info), __compare); + /* Count the number of distinct pkgs values. This works + because the primary sort of the core_info struct was just + done by pkg value. */ + last_pkg = cpu_top->core_info[0].pkg; + for(cpu = 1; cpu < cpus; cpu++) { + if(cpu_top->core_info[cpu].pkg != last_pkg) { + last_pkg = cpu_top->core_info[cpu].pkg; + cpu_top->pkgs++; + } + } + cpu_top->pkgs++; + /* Intel's cores count is not consecutively numbered, there may * be a core_id of 3, but none of 2. Assume there always is 0 * Get amount of cores by counting duplicates in a package diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c index 0d6571e418db..c4bae9203a69 100644 --- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c @@ -39,6 +39,7 @@ static int mode; static int interval = 1; static char *show_monitors_param; static struct cpupower_topology cpu_top; +static unsigned int wake_cpus; /* ToDo: Document this in the manpage */ static char range_abbr[RANGE_MAX] = { 'T', 'C', 'P', 'M', }; @@ -84,7 +85,7 @@ int fill_string_with_spaces(char *s, int n) void print_header(int topology_depth) { int unsigned mon; - int state, need_len, pr_mon_len; + int state, need_len; cstate_t s; char buf[128] = ""; int percent_width = 4; @@ -93,7 +94,6 @@ void print_header(int topology_depth) printf("%s|", buf); for (mon = 0; mon < avail_monitors; mon++) { - pr_mon_len = 0; need_len = monitors[mon]->hw_states_num * (percent_width + 3) - 1; if (mon != 0) { @@ -315,16 +315,28 @@ int fork_it(char **argv) int do_interval_measure(int i) { unsigned int num; + int cpu; + + if (wake_cpus) + for (cpu = 0; cpu < cpu_count; cpu++) + bind_cpu(cpu); for (num = 0; num < avail_monitors; num++) { dprint("HW C-state residency monitor: %s - States: %d\n", monitors[num]->name, monitors[num]->hw_states_num); monitors[num]->start(); } + sleep(i); + + if (wake_cpus) + for (cpu = 0; cpu < cpu_count; cpu++) + bind_cpu(cpu); + for (num = 0; num < avail_monitors; num++) monitors[num]->stop(); + return 0; } @@ -333,7 +345,7 @@ static void cmdline(int argc, char *argv[]) int opt; progname = basename(argv[0]); - while ((opt = getopt(argc, argv, "+li:m:")) != -1) { + while ((opt = getopt(argc, argv, "+lci:m:")) != -1) { switch (opt) { case 'l': if (mode) @@ -352,6 +364,9 @@ static void cmdline(int argc, char *argv[]) mode = show; show_monitors_param = optarg; break; + case 'c': + wake_cpus = 1; + break; default: print_wrong_arg_exit(); } diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h index 9312ee1f2dbc..9e43f3371fbc 100644 --- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h @@ -65,4 +65,21 @@ extern long long timespec_diff_us(struct timespec start, struct timespec end); "could be inaccurate\n"), mes, ov); \ } + +/* Taken over from x86info project sources -> return 0 on success */ +#include <sched.h> +#include <sys/types.h> +#include <unistd.h> +static inline int bind_cpu(int cpu) +{ + cpu_set_t set; + + if (sched_getaffinity(getpid(), sizeof(set), &set) == 0) { + CPU_ZERO(&set); + CPU_SET(cpu, &set); + return sched_setaffinity(getpid(), sizeof(set), &set); + } + return 1; +} + #endif /* __CPUIDLE_INFO_HW__ */ diff --git a/tools/power/cpupower/utils/idle_monitor/snb_idle.c b/tools/power/cpupower/utils/idle_monitor/snb_idle.c index a1bc07cd53e1..a99b43b97d6d 100644 --- a/tools/power/cpupower/utils/idle_monitor/snb_idle.c +++ b/tools/power/cpupower/utils/idle_monitor/snb_idle.c @@ -150,9 +150,15 @@ static struct cpuidle_monitor *snb_register(void) || cpupower_cpu_info.family != 6) return NULL; - if (cpupower_cpu_info.model != 0x2A - && cpupower_cpu_info.model != 0x2D) + switch (cpupower_cpu_info.model) { + case 0x2A: /* SNB */ + case 0x2D: /* SNB Xeon */ + case 0x3A: /* IVB */ + case 0x3E: /* IVB Xeon */ + break; + default: return NULL; + } is_valid = calloc(cpu_count, sizeof(int)); for (num = 0; num < SNB_CSTATE_COUNT; num++) { |