646 lines
14 KiB
C
646 lines
14 KiB
C
/*
|
|
* (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
|
|
*
|
|
* Licensed under the terms of the GNU GPL License version 2.
|
|
*/
|
|
|
|
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <limits.h>
|
|
|
|
#include <getopt.h>
|
|
|
|
#include "cpufreq.h"
|
|
#include "helpers/sysfs.h"
|
|
#include "helpers/helpers.h"
|
|
#include "helpers/bitmask.h"
|
|
|
|
#define LINE_LEN 10
|
|
|
|
static unsigned int count_cpus(void)
|
|
{
|
|
FILE *fp;
|
|
char value[LINE_LEN];
|
|
unsigned int ret = 0;
|
|
unsigned int cpunr = 0;
|
|
|
|
fp = fopen("/proc/stat", "r");
|
|
if (!fp) {
|
|
printf(_("Couldn't count the number of CPUs (%s: %s), assuming 1\n"), "/proc/stat", strerror(errno));
|
|
return 1;
|
|
}
|
|
|
|
while (!feof(fp)) {
|
|
if (!fgets(value, LINE_LEN, fp))
|
|
continue;
|
|
value[LINE_LEN - 1] = '\0';
|
|
if (strlen(value) < (LINE_LEN - 2))
|
|
continue;
|
|
if (strstr(value, "cpu "))
|
|
continue;
|
|
if (sscanf(value, "cpu%d ", &cpunr) != 1)
|
|
continue;
|
|
if (cpunr > ret)
|
|
ret = cpunr;
|
|
}
|
|
fclose(fp);
|
|
|
|
/* cpu count starts from 0, on error return 1 (UP) */
|
|
return ret + 1;
|
|
}
|
|
|
|
|
|
static void proc_cpufreq_output(void)
|
|
{
|
|
unsigned int cpu, nr_cpus;
|
|
struct cpufreq_policy *policy;
|
|
unsigned int min_pctg = 0;
|
|
unsigned int max_pctg = 0;
|
|
unsigned long min, max;
|
|
|
|
printf(_(" minimum CPU frequency - maximum CPU frequency - governor\n"));
|
|
|
|
nr_cpus = count_cpus();
|
|
for (cpu = 0; cpu < nr_cpus; cpu++) {
|
|
policy = cpufreq_get_policy(cpu);
|
|
if (!policy)
|
|
continue;
|
|
|
|
if (cpufreq_get_hardware_limits(cpu, &min, &max)) {
|
|
max = 0;
|
|
} else {
|
|
min_pctg = (policy->min * 100) / max;
|
|
max_pctg = (policy->max * 100) / max;
|
|
}
|
|
printf("CPU%3d %9lu kHz (%3d %%) - %9lu kHz (%3d %%) - %s\n",
|
|
cpu , policy->min, max ? min_pctg : 0, policy->max,
|
|
max ? max_pctg : 0, policy->governor);
|
|
|
|
cpufreq_put_policy(policy);
|
|
}
|
|
}
|
|
|
|
static int no_rounding;
|
|
static void print_speed(unsigned long speed)
|
|
{
|
|
unsigned long tmp;
|
|
|
|
if (no_rounding) {
|
|
if (speed > 1000000)
|
|
printf("%u.%06u GHz", ((unsigned int) speed/1000000),
|
|
((unsigned int) speed%1000000));
|
|
else if (speed > 100000)
|
|
printf("%u MHz", (unsigned int) speed);
|
|
else if (speed > 1000)
|
|
printf("%u.%03u MHz", ((unsigned int) speed/1000),
|
|
(unsigned int) (speed%1000));
|
|
else
|
|
printf("%lu kHz", speed);
|
|
} else {
|
|
if (speed > 1000000) {
|
|
tmp = speed%10000;
|
|
if (tmp >= 5000)
|
|
speed += 10000;
|
|
printf("%u.%02u GHz", ((unsigned int) speed/1000000),
|
|
((unsigned int) (speed%1000000)/10000));
|
|
} else if (speed > 100000) {
|
|
tmp = speed%1000;
|
|
if (tmp >= 500)
|
|
speed += 1000;
|
|
printf("%u MHz", ((unsigned int) speed/1000));
|
|
} else if (speed > 1000) {
|
|
tmp = speed%100;
|
|
if (tmp >= 50)
|
|
speed += 100;
|
|
printf("%u.%01u MHz", ((unsigned int) speed/1000),
|
|
((unsigned int) (speed%1000)/100));
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static void print_duration(unsigned long duration)
|
|
{
|
|
unsigned long tmp;
|
|
|
|
if (no_rounding) {
|
|
if (duration > 1000000)
|
|
printf("%u.%06u ms", ((unsigned int) duration/1000000),
|
|
((unsigned int) duration%1000000));
|
|
else if (duration > 100000)
|
|
printf("%u us", ((unsigned int) duration/1000));
|
|
else if (duration > 1000)
|
|
printf("%u.%03u us", ((unsigned int) duration/1000),
|
|
((unsigned int) duration%1000));
|
|
else
|
|
printf("%lu ns", duration);
|
|
} else {
|
|
if (duration > 1000000) {
|
|
tmp = duration%10000;
|
|
if (tmp >= 5000)
|
|
duration += 10000;
|
|
printf("%u.%02u ms", ((unsigned int) duration/1000000),
|
|
((unsigned int) (duration%1000000)/10000));
|
|
} else if (duration > 100000) {
|
|
tmp = duration%1000;
|
|
if (tmp >= 500)
|
|
duration += 1000;
|
|
printf("%u us", ((unsigned int) duration / 1000));
|
|
} else if (duration > 1000) {
|
|
tmp = duration%100;
|
|
if (tmp >= 50)
|
|
duration += 100;
|
|
printf("%u.%01u us", ((unsigned int) duration/1000),
|
|
((unsigned int) (duration%1000)/100));
|
|
} else
|
|
printf("%lu ns", duration);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* --boost / -b */
|
|
|
|
static int get_boost_mode(unsigned int cpu)
|
|
{
|
|
int support, active, b_states = 0, ret, pstate_no, i;
|
|
/* ToDo: Make this more global */
|
|
unsigned long pstates[MAX_HW_PSTATES] = {0,};
|
|
|
|
if (cpupower_cpu_info.vendor != X86_VENDOR_AMD &&
|
|
cpupower_cpu_info.vendor != X86_VENDOR_INTEL)
|
|
return 0;
|
|
|
|
ret = cpufreq_has_boost_support(cpu, &support, &active, &b_states);
|
|
if (ret) {
|
|
printf(_("Error while evaluating Boost Capabilities"
|
|
" on CPU %d -- are you root?\n"), cpu);
|
|
return ret;
|
|
}
|
|
/* P state changes via MSR are identified via cpuid 80000007
|
|
on Intel and AMD, but we assume boost capable machines can do that
|
|
if (cpuid_eax(0x80000000) >= 0x80000007
|
|
&& (cpuid_edx(0x80000007) & (1 << 7)))
|
|
*/
|
|
|
|
printf(_(" boost state support:\n"));
|
|
|
|
printf(_(" Supported: %s\n"), support ? _("yes") : _("no"));
|
|
printf(_(" Active: %s\n"), active ? _("yes") : _("no"));
|
|
|
|
if (cpupower_cpu_info.vendor == X86_VENDOR_AMD &&
|
|
cpupower_cpu_info.family >= 0x10) {
|
|
ret = decode_pstates(cpu, cpupower_cpu_info.family, b_states,
|
|
pstates, &pstate_no);
|
|
if (ret)
|
|
return ret;
|
|
|
|
printf(_(" Boost States: %d\n"), b_states);
|
|
printf(_(" Total States: %d\n"), pstate_no);
|
|
for (i = 0; i < pstate_no; i++) {
|
|
if (i < b_states)
|
|
printf(_(" Pstate-Pb%d: %luMHz (boost state)"
|
|
"\n"), i, pstates[i]);
|
|
else
|
|
printf(_(" Pstate-P%d: %luMHz\n"),
|
|
i - b_states, pstates[i]);
|
|
}
|
|
} else if (cpupower_cpu_info.caps & CPUPOWER_CAP_HAS_TURBO_RATIO) {
|
|
double bclk;
|
|
unsigned long long intel_turbo_ratio = 0;
|
|
unsigned int ratio;
|
|
|
|
/* Any way to autodetect this ? */
|
|
if (cpupower_cpu_info.caps & CPUPOWER_CAP_IS_SNB)
|
|
bclk = 100.00;
|
|
else
|
|
bclk = 133.33;
|
|
intel_turbo_ratio = msr_intel_get_turbo_ratio(cpu);
|
|
dprint (" Ratio: 0x%llx - bclk: %f\n",
|
|
intel_turbo_ratio, bclk);
|
|
|
|
ratio = (intel_turbo_ratio >> 24) & 0xFF;
|
|
if (ratio)
|
|
printf(_(" %.0f MHz max turbo 4 active cores\n"),
|
|
ratio * bclk);
|
|
|
|
ratio = (intel_turbo_ratio >> 16) & 0xFF;
|
|
if (ratio)
|
|
printf(_(" %.0f MHz max turbo 3 active cores\n"),
|
|
ratio * bclk);
|
|
|
|
ratio = (intel_turbo_ratio >> 8) & 0xFF;
|
|
if (ratio)
|
|
printf(_(" %.0f MHz max turbo 2 active cores\n"),
|
|
ratio * bclk);
|
|
|
|
ratio = (intel_turbo_ratio >> 0) & 0xFF;
|
|
if (ratio)
|
|
printf(_(" %.0f MHz max turbo 1 active cores\n"),
|
|
ratio * bclk);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* --freq / -f */
|
|
|
|
static int get_freq_kernel(unsigned int cpu, unsigned int human)
|
|
{
|
|
unsigned long freq = cpufreq_get_freq_kernel(cpu);
|
|
printf(_(" current CPU frequency: "));
|
|
if (!freq) {
|
|
printf(_(" Unable to call to kernel\n"));
|
|
return -EINVAL;
|
|
}
|
|
if (human) {
|
|
print_speed(freq);
|
|
} else
|
|
printf("%lu", freq);
|
|
printf(_(" (asserted by call to kernel)\n"));
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* --hwfreq / -w */
|
|
|
|
static int get_freq_hardware(unsigned int cpu, unsigned int human)
|
|
{
|
|
unsigned long freq = cpufreq_get_freq_hardware(cpu);
|
|
printf(_(" current CPU frequency: "));
|
|
if (!freq) {
|
|
printf("Unable to call hardware\n");
|
|
return -EINVAL;
|
|
}
|
|
if (human) {
|
|
print_speed(freq);
|
|
} else
|
|
printf("%lu", freq);
|
|
printf(_(" (asserted by call to hardware)\n"));
|
|
return 0;
|
|
}
|
|
|
|
/* --hwlimits / -l */
|
|
|
|
static int get_hardware_limits(unsigned int cpu)
|
|
{
|
|
unsigned long min, max;
|
|
|
|
printf(_(" hardware limits: "));
|
|
if (cpufreq_get_hardware_limits(cpu, &min, &max)) {
|
|
printf(_("Not Available\n"));
|
|
return -EINVAL;
|
|
}
|
|
|
|
print_speed(min);
|
|
printf(" - ");
|
|
print_speed(max);
|
|
printf("\n");
|
|
return 0;
|
|
}
|
|
|
|
/* --driver / -d */
|
|
|
|
static int get_driver(unsigned int cpu)
|
|
{
|
|
char *driver = cpufreq_get_driver(cpu);
|
|
if (!driver) {
|
|
printf(_(" no or unknown cpufreq driver is active on this CPU\n"));
|
|
return -EINVAL;
|
|
}
|
|
printf(" driver: %s\n", driver);
|
|
cpufreq_put_driver(driver);
|
|
return 0;
|
|
}
|
|
|
|
/* --policy / -p */
|
|
|
|
static int get_policy(unsigned int cpu)
|
|
{
|
|
struct cpufreq_policy *policy = cpufreq_get_policy(cpu);
|
|
if (!policy) {
|
|
printf(_(" Unable to determine current policy\n"));
|
|
return -EINVAL;
|
|
}
|
|
printf(_(" current policy: frequency should be within "));
|
|
print_speed(policy->min);
|
|
printf(_(" and "));
|
|
print_speed(policy->max);
|
|
|
|
printf(".\n ");
|
|
printf(_("The governor \"%s\" may decide which speed to use\n"
|
|
" within this range.\n"),
|
|
policy->governor);
|
|
cpufreq_put_policy(policy);
|
|
return 0;
|
|
}
|
|
|
|
/* --governors / -g */
|
|
|
|
static int get_available_governors(unsigned int cpu)
|
|
{
|
|
struct cpufreq_available_governors *governors =
|
|
cpufreq_get_available_governors(cpu);
|
|
|
|
printf(_(" available cpufreq governors: "));
|
|
if (!governors) {
|
|
printf(_("Not Available\n"));
|
|
return -EINVAL;
|
|
}
|
|
|
|
while (governors->next) {
|
|
printf("%s ", governors->governor);
|
|
governors = governors->next;
|
|
}
|
|
printf("%s\n", governors->governor);
|
|
cpufreq_put_available_governors(governors);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* --affected-cpus / -a */
|
|
|
|
static int get_affected_cpus(unsigned int cpu)
|
|
{
|
|
struct cpufreq_affected_cpus *cpus = cpufreq_get_affected_cpus(cpu);
|
|
|
|
printf(_(" CPUs which need to have their frequency coordinated by software: "));
|
|
if (!cpus) {
|
|
printf(_("Not Available\n"));
|
|
return -EINVAL;
|
|
}
|
|
|
|
while (cpus->next) {
|
|
printf("%d ", cpus->cpu);
|
|
cpus = cpus->next;
|
|
}
|
|
printf("%d\n", cpus->cpu);
|
|
cpufreq_put_affected_cpus(cpus);
|
|
return 0;
|
|
}
|
|
|
|
/* --related-cpus / -r */
|
|
|
|
static int get_related_cpus(unsigned int cpu)
|
|
{
|
|
struct cpufreq_affected_cpus *cpus = cpufreq_get_related_cpus(cpu);
|
|
|
|
printf(_(" CPUs which run at the same hardware frequency: "));
|
|
if (!cpus) {
|
|
printf(_("Not Available\n"));
|
|
return -EINVAL;
|
|
}
|
|
|
|
while (cpus->next) {
|
|
printf("%d ", cpus->cpu);
|
|
cpus = cpus->next;
|
|
}
|
|
printf("%d\n", cpus->cpu);
|
|
cpufreq_put_related_cpus(cpus);
|
|
return 0;
|
|
}
|
|
|
|
/* --stats / -s */
|
|
|
|
static int get_freq_stats(unsigned int cpu, unsigned int human)
|
|
{
|
|
unsigned long total_trans = cpufreq_get_transitions(cpu);
|
|
unsigned long long total_time;
|
|
struct cpufreq_stats *stats = cpufreq_get_stats(cpu, &total_time);
|
|
while (stats) {
|
|
if (human) {
|
|
print_speed(stats->frequency);
|
|
printf(":%.2f%%",
|
|
(100.0 * stats->time_in_state) / total_time);
|
|
} else
|
|
printf("%lu:%llu",
|
|
stats->frequency, stats->time_in_state);
|
|
stats = stats->next;
|
|
if (stats)
|
|
printf(", ");
|
|
}
|
|
cpufreq_put_stats(stats);
|
|
if (total_trans)
|
|
printf(" (%lu)\n", total_trans);
|
|
return 0;
|
|
}
|
|
|
|
/* --latency / -y */
|
|
|
|
static int get_latency(unsigned int cpu, unsigned int human)
|
|
{
|
|
unsigned long latency = cpufreq_get_transition_latency(cpu);
|
|
|
|
printf(_(" maximum transition latency: "));
|
|
if (!latency || latency == UINT_MAX) {
|
|
printf(_(" Cannot determine or is not supported.\n"));
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (human) {
|
|
print_duration(latency);
|
|
printf("\n");
|
|
} else
|
|
printf("%lu\n", latency);
|
|
return 0;
|
|
}
|
|
|
|
static void debug_output_one(unsigned int cpu)
|
|
{
|
|
struct cpufreq_available_frequencies *freqs;
|
|
|
|
get_driver(cpu);
|
|
get_related_cpus(cpu);
|
|
get_affected_cpus(cpu);
|
|
get_latency(cpu, 1);
|
|
get_hardware_limits(cpu);
|
|
|
|
freqs = cpufreq_get_available_frequencies(cpu);
|
|
if (freqs) {
|
|
printf(_(" available frequency steps: "));
|
|
while (freqs->next) {
|
|
print_speed(freqs->frequency);
|
|
printf(", ");
|
|
freqs = freqs->next;
|
|
}
|
|
print_speed(freqs->frequency);
|
|
printf("\n");
|
|
cpufreq_put_available_frequencies(freqs);
|
|
}
|
|
|
|
get_available_governors(cpu);
|
|
get_policy(cpu);
|
|
if (get_freq_hardware(cpu, 1) < 0)
|
|
get_freq_kernel(cpu, 1);
|
|
get_boost_mode(cpu);
|
|
}
|
|
|
|
static struct option info_opts[] = {
|
|
{"debug", no_argument, NULL, 'e'},
|
|
{"boost", no_argument, NULL, 'b'},
|
|
{"freq", no_argument, NULL, 'f'},
|
|
{"hwfreq", no_argument, NULL, 'w'},
|
|
{"hwlimits", no_argument, NULL, 'l'},
|
|
{"driver", no_argument, NULL, 'd'},
|
|
{"policy", no_argument, NULL, 'p'},
|
|
{"governors", no_argument, NULL, 'g'},
|
|
{"related-cpus", no_argument, NULL, 'r'},
|
|
{"affected-cpus", no_argument, NULL, 'a'},
|
|
{"stats", no_argument, NULL, 's'},
|
|
{"latency", no_argument, NULL, 'y'},
|
|
{"proc", no_argument, NULL, 'o'},
|
|
{"human", no_argument, NULL, 'm'},
|
|
{"no-rounding", no_argument, NULL, 'n'},
|
|
{ },
|
|
};
|
|
|
|
int cmd_freq_info(int argc, char **argv)
|
|
{
|
|
extern char *optarg;
|
|
extern int optind, opterr, optopt;
|
|
int ret = 0, cont = 1;
|
|
unsigned int cpu = 0;
|
|
unsigned int human = 0;
|
|
int output_param = 0;
|
|
|
|
do {
|
|
ret = getopt_long(argc, argv, "oefwldpgrasmybn", info_opts,
|
|
NULL);
|
|
switch (ret) {
|
|
case '?':
|
|
output_param = '?';
|
|
cont = 0;
|
|
break;
|
|
case -1:
|
|
cont = 0;
|
|
break;
|
|
case 'b':
|
|
case 'o':
|
|
case 'a':
|
|
case 'r':
|
|
case 'g':
|
|
case 'p':
|
|
case 'd':
|
|
case 'l':
|
|
case 'w':
|
|
case 'f':
|
|
case 'e':
|
|
case 's':
|
|
case 'y':
|
|
if (output_param) {
|
|
output_param = -1;
|
|
cont = 0;
|
|
break;
|
|
}
|
|
output_param = ret;
|
|
break;
|
|
case 'm':
|
|
if (human) {
|
|
output_param = -1;
|
|
cont = 0;
|
|
break;
|
|
}
|
|
human = 1;
|
|
break;
|
|
case 'n':
|
|
no_rounding = 1;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "invalid or unknown argument\n");
|
|
return EXIT_FAILURE;
|
|
}
|
|
} while (cont);
|
|
|
|
switch (output_param) {
|
|
case 'o':
|
|
if (!bitmask_isallclear(cpus_chosen)) {
|
|
printf(_("The argument passed to this tool can't be "
|
|
"combined with passing a --cpu argument\n"));
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
case 0:
|
|
output_param = 'e';
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
/* Default is: show output of CPU 0 only */
|
|
if (bitmask_isallclear(cpus_chosen))
|
|
bitmask_setbit(cpus_chosen, 0);
|
|
|
|
switch (output_param) {
|
|
case -1:
|
|
printf(_("You can't specify more than one --cpu parameter and/or\n"
|
|
"more than one output-specific argument\n"));
|
|
return -EINVAL;
|
|
case '?':
|
|
printf(_("invalid or unknown argument\n"));
|
|
return -EINVAL;
|
|
case 'o':
|
|
proc_cpufreq_output();
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
for (cpu = bitmask_first(cpus_chosen);
|
|
cpu <= bitmask_last(cpus_chosen); cpu++) {
|
|
|
|
if (!bitmask_isbitset(cpus_chosen, cpu))
|
|
continue;
|
|
|
|
printf(_("analyzing CPU %d:\n"), cpu);
|
|
|
|
if (sysfs_is_cpu_online(cpu) != 1) {
|
|
printf(_(" *is offline\n"));
|
|
printf("\n");
|
|
continue;
|
|
}
|
|
|
|
switch (output_param) {
|
|
case 'b':
|
|
get_boost_mode(cpu);
|
|
break;
|
|
case 'e':
|
|
debug_output_one(cpu);
|
|
break;
|
|
case 'a':
|
|
ret = get_affected_cpus(cpu);
|
|
break;
|
|
case 'r':
|
|
ret = get_related_cpus(cpu);
|
|
break;
|
|
case 'g':
|
|
ret = get_available_governors(cpu);
|
|
break;
|
|
case 'p':
|
|
ret = get_policy(cpu);
|
|
break;
|
|
case 'd':
|
|
ret = get_driver(cpu);
|
|
break;
|
|
case 'l':
|
|
ret = get_hardware_limits(cpu);
|
|
break;
|
|
case 'w':
|
|
ret = get_freq_hardware(cpu, human);
|
|
break;
|
|
case 'f':
|
|
ret = get_freq_kernel(cpu, human);
|
|
break;
|
|
case 's':
|
|
ret = get_freq_stats(cpu, human);
|
|
break;
|
|
case 'y':
|
|
ret = get_latency(cpu, human);
|
|
break;
|
|
}
|
|
if (ret)
|
|
return ret;
|
|
printf("\n");
|
|
}
|
|
return ret;
|
|
}
|