From: Thomas Renninger <trenn@suse.com>
To: rjw@rjwysocki.net
Cc: linux-pm@vger.kernel.org, Thomas Renninger <trenn@suse.com>
Subject: [PATCH 3/5] cpupower: Do not analyse offlined cpus
Date: Tue, 1 Dec 2015 17:14:15 +0100 [thread overview]
Message-ID: <1448986457-12844-4-git-send-email-trenn@suse.com> (raw)
In-Reply-To: <1448986457-12844-1-git-send-email-trenn@suse.com>
Use sysfs_is_cpu_online(cpu) instead of cpufreq_cpu_exists(cpu) to detect offlined cpus.
Re-arrange printfs slightly to have a consistent output even if you have multiple CPUs
as output and even if offlined cores are in between.
Signed-off-by: Thomas Renninger <trenn@suse.com>
---
tools/power/cpupower/utils/cpufreq-info.c | 11 ++++++++---
tools/power/cpupower/utils/cpuidle-info.c | 16 ++++++++++------
tools/power/cpupower/utils/cpupower-info.c | 9 ++++++---
tools/power/cpupower/utils/cpupower-set.c | 10 +++++++---
4 files changed, 31 insertions(+), 15 deletions(-)
diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c
index 0e67643..522b357 100644
--- a/tools/power/cpupower/utils/cpufreq-info.c
+++ b/tools/power/cpupower/utils/cpufreq-info.c
@@ -14,6 +14,7 @@
#include <getopt.h>
#include "cpufreq.h"
+#include "helpers/sysfs.h"
#include "helpers/helpers.h"
#include "helpers/bitmask.h"
@@ -647,11 +648,14 @@ int cmd_freq_info(int argc, char **argv)
if (!bitmask_isbitset(cpus_chosen, cpu))
continue;
- if (cpufreq_cpu_exists(cpu)) {
- printf(_("couldn't analyze CPU %d as it doesn't seem to be present\n"), cpu);
+
+ printf(_("analyzing CPU %d:\n"), cpu);
+
+ if (sysfs_is_cpu_online(cpu) != 1) {
+ printf(_(" *is offline\n"));
+ printf("\n");
continue;
}
- printf(_("analyzing CPU %d:\n"), cpu);
switch (output_param) {
case 'b':
@@ -693,6 +697,7 @@ int cmd_freq_info(int argc, char **argv)
}
if (ret)
return ret;
+ printf("\n");
}
return ret;
}
diff --git a/tools/power/cpupower/utils/cpuidle-info.c b/tools/power/cpupower/utils/cpuidle-info.c
index 750c1d8..8bf8ab5 100644
--- a/tools/power/cpupower/utils/cpuidle-info.c
+++ b/tools/power/cpupower/utils/cpuidle-info.c
@@ -12,7 +12,6 @@
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
-#include <cpufreq.h>
#include "helpers/helpers.h"
#include "helpers/sysfs.h"
@@ -25,8 +24,6 @@ static void cpuidle_cpu_output(unsigned int cpu, int verbose)
unsigned int idlestates, idlestate;
char *tmp;
- printf(_ ("Analyzing CPU %d:\n"), cpu);
-
idlestates = sysfs_get_idlestate_count(cpu);
if (idlestates == 0) {
printf(_("CPU %u: No idle states\n"), cpu);
@@ -71,7 +68,6 @@ static void cpuidle_cpu_output(unsigned int cpu, int verbose)
printf(_("Duration: %llu\n"),
sysfs_get_idlestate_time(cpu, idlestate));
}
- printf("\n");
}
static void cpuidle_general_output(void)
@@ -189,10 +185,17 @@ int cmd_idle_info(int argc, char **argv)
for (cpu = bitmask_first(cpus_chosen);
cpu <= bitmask_last(cpus_chosen); cpu++) {
- if (!bitmask_isbitset(cpus_chosen, cpu) ||
- cpufreq_cpu_exists(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 'o':
@@ -203,6 +206,7 @@ int cmd_idle_info(int argc, char **argv)
cpuidle_cpu_output(cpu, verbose);
break;
}
+ printf("\n");
}
return EXIT_SUCCESS;
}
diff --git a/tools/power/cpupower/utils/cpupower-info.c b/tools/power/cpupower/utils/cpupower-info.c
index 10299f2..c7caa8e 100644
--- a/tools/power/cpupower/utils/cpupower-info.c
+++ b/tools/power/cpupower/utils/cpupower-info.c
@@ -12,7 +12,6 @@
#include <string.h>
#include <getopt.h>
-#include <cpufreq.h>
#include "helpers/helpers.h"
#include "helpers/sysfs.h"
@@ -83,12 +82,16 @@ int cmd_info(int argc, char **argv)
for (cpu = bitmask_first(cpus_chosen);
cpu <= bitmask_last(cpus_chosen); cpu++) {
- if (!bitmask_isbitset(cpus_chosen, cpu) ||
- cpufreq_cpu_exists(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"));
+ continue;
+ }
+
if (params.perf_bias) {
ret = msr_intel_get_perf_bias(cpu);
if (ret < 0) {
diff --git a/tools/power/cpupower/utils/cpupower-set.c b/tools/power/cpupower/utils/cpupower-set.c
index 3e6f374..532f46b 100644
--- a/tools/power/cpupower/utils/cpupower-set.c
+++ b/tools/power/cpupower/utils/cpupower-set.c
@@ -12,7 +12,6 @@
#include <string.h>
#include <getopt.h>
-#include <cpufreq.h>
#include "helpers/helpers.h"
#include "helpers/sysfs.h"
#include "helpers/bitmask.h"
@@ -78,10 +77,15 @@ int cmd_set(int argc, char **argv)
for (cpu = bitmask_first(cpus_chosen);
cpu <= bitmask_last(cpus_chosen); cpu++) {
- if (!bitmask_isbitset(cpus_chosen, cpu) ||
- cpufreq_cpu_exists(cpu))
+ if (!bitmask_isbitset(cpus_chosen, cpu))
continue;
+ if (sysfs_is_cpu_online(cpu) != 1){
+ fprintf(stderr, _("Cannot set values on CPU %d:"), cpu);
+ fprintf(stderr, _(" *is offline\n"));
+ continue;
+ }
+
if (params.perf_bias) {
ret = msr_intel_set_perf_bias(cpu, perf_bias);
if (ret) {
--
2.1.4
next prev parent reply other threads:[~2015-12-01 16:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-01 16:14 cpupower fixes Thomas Renninger
2015-12-01 16:14 ` [PATCH 1/5] cpupower: Fix precedence issue Thomas Renninger
2015-12-01 16:14 ` [PATCH 2/5] cpupower: Provide STATIC variable in Makefile for debug builds Thomas Renninger
2015-12-01 16:14 ` Thomas Renninger [this message]
2015-12-01 16:14 ` [PATCH 4/5] cpupower: rework the "cpupower frequency-info" command Thomas Renninger
2015-12-01 16:14 ` [PATCH 5/5] cpupower: fix how "cpupower frequency-info" interprets latency Thomas Renninger
2015-12-02 1:30 ` cpupower fixes Rafael J. Wysocki
2015-12-02 9:17 ` Thomas Renninger
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