@@ -3,7 +3,7 @@
cpupower\-info \- Shows processor power related kernel or hardware configurations
.SH SYNOPSIS
.ft B
-.B cpupower info [ \-b ] [ \-s ] [ \-m ]
+.B cpupower info [ \-b ]
.SH DESCRIPTION
\fBcpupower info \fP shows kernel configurations or processor hardware
@@ -3,7 +3,7 @@
cpupower\-set \- Set processor power related kernel or hardware configurations
.SH SYNOPSIS
.ft B
-.B cpupower set [ \-b VAL ] [ \-s VAL ] [ \-m VAL ]
+.B cpupower set [ \-b VAL ]
.SH DESCRIPTION
@@ -55,35 +55,6 @@ Use \fBcpupower -c all info -b\fP to verify.
This options needs the msr kernel driver (CONFIG_X86_MSR) loaded.
.RE
-.PP
-\-\-sched\-mc, \-m [ VAL ]
-.RE
-\-\-sched\-smt, \-s [ VAL ]
-.RS 4
-\-\-sched\-mc utilizes cores in one processor package/socket first before
-processes are scheduled to other processor packages/sockets.
-
-\-\-sched\-smt utilizes thread siblings of one processor core first before
-processes are scheduled to other cores.
-
-The impact on power consumption and performance (positiv or negativ) heavily
-depends on processor support for deep sleep states, frequency scaling and
-frequency boost modes and their dependencies between other thread siblings
-and processor cores.
-
-Taken over from kernel documentation:
-
-Adjust the kernel's multi-core scheduler support.
-
-Possible values are:
-.RS 2
-0 - No power saving load balance (default value)
-
-1 - Fill one thread/core/package first for long running threads
-
-2 - Also bias task wakeups to semi-idle cpu package for power
-savings
-.RE
.SH "SEE ALSO"
cpupower-info(1), cpupower-monitor(1), powertop(1)
@@ -18,8 +18,6 @@
static struct option set_opts[] = {
{ .name = "perf-bias", .has_arg = optional_argument, .flag = NULL, .val = 'b'},
- { .name = "sched-mc", .has_arg = optional_argument, .flag = NULL, .val = 'm'},
- { .name = "sched-smt", .has_arg = optional_argument, .flag = NULL, .val = 's'},
{ },
};
@@ -37,8 +35,6 @@ int cmd_info(int argc, char **argv)
union {
struct {
- int sched_mc:1;
- int sched_smt:1;
int perf_bias:1;
};
int params;
@@ -49,23 +45,13 @@ int cmd_info(int argc, char **argv)
textdomain(PACKAGE);
/* parameter parsing */
- while ((ret = getopt_long(argc, argv, "msb", set_opts, NULL)) != -1) {
+ while ((ret = getopt_long(argc, argv, "b", set_opts, NULL)) != -1) {
switch (ret) {
case 'b':
if (params.perf_bias)
print_wrong_arg_exit();
params.perf_bias = 1;
break;
- case 'm':
- if (params.sched_mc)
- print_wrong_arg_exit();
- params.sched_mc = 1;
- break;
- case 's':
- if (params.sched_smt)
- print_wrong_arg_exit();
- params.sched_smt = 1;
- break;
default:
print_wrong_arg_exit();
}
@@ -78,25 +64,6 @@ int cmd_info(int argc, char **argv)
if (bitmask_isallclear(cpus_chosen))
bitmask_setbit(cpus_chosen, 0);
- if (params.sched_mc) {
- ret = sysfs_get_sched("mc");
- printf(_("System's multi core scheduler setting: "));
- if (ret < 0)
- /* if sysfs file is missing it's: errno == ENOENT */
- printf(_("not supported\n"));
- else
- printf("%d\n", ret);
- }
- if (params.sched_smt) {
- ret = sysfs_get_sched("smt");
- printf(_("System's thread sibling scheduler setting: "));
- if (ret < 0)
- /* if sysfs file is missing it's: errno == ENOENT */
- printf(_("not supported\n"));
- else
- printf("%d\n", ret);
- }
-
/* Add more per cpu options here */
if (!params.perf_bias)
return ret;
@@ -19,8 +19,6 @@
static struct option set_opts[] = {
{ .name = "perf-bias", .has_arg = required_argument, .flag = NULL, .val = 'b'},
- { .name = "sched-mc", .has_arg = required_argument, .flag = NULL, .val = 'm'},
- { .name = "sched-smt", .has_arg = required_argument, .flag = NULL, .val = 's'},
{ },
};
@@ -38,13 +36,11 @@ int cmd_set(int argc, char **argv)
union {
struct {
- int sched_mc:1;
- int sched_smt:1;
int perf_bias:1;
};
int params;
} params;
- int sched_mc = 0, sched_smt = 0, perf_bias = 0;
+ int perf_bias = 0;
int ret = 0;
setlocale(LC_ALL, "");
@@ -52,7 +48,7 @@ int cmd_set(int argc, char **argv)
params.params = 0;
/* parameter parsing */
- while ((ret = getopt_long(argc, argv, "m:s:b:",
+ while ((ret = getopt_long(argc, argv, "b:",
set_opts, NULL)) != -1) {
switch (ret) {
case 'b':
@@ -66,28 +62,6 @@ int cmd_set(int argc, char **argv)
}
params.perf_bias = 1;
break;
- case 'm':
- if (params.sched_mc)
- print_wrong_arg_exit();
- sched_mc = atoi(optarg);
- if (sched_mc < 0 || sched_mc > 2) {
- printf(_("--sched-mc param out "
- "of range [0-%d]\n"), 2);
- print_wrong_arg_exit();
- }
- params.sched_mc = 1;
- break;
- case 's':
- if (params.sched_smt)
- print_wrong_arg_exit();
- sched_smt = atoi(optarg);
- if (sched_smt < 0 || sched_smt > 2) {
- printf(_("--sched-smt param out "
- "of range [0-%d]\n"), 2);
- print_wrong_arg_exit();
- }
- params.sched_smt = 1;
- break;
default:
print_wrong_arg_exit();
}
@@ -96,19 +70,6 @@ int cmd_set(int argc, char **argv)
if (!params.params)
print_wrong_arg_exit();
- if (params.sched_mc) {
- ret = sysfs_set_sched("mc", sched_mc);
- if (ret)
- fprintf(stderr, _("Error setting sched-mc %s\n"),
- (ret == -ENODEV) ? "not supported" : "");
- }
- if (params.sched_smt) {
- ret = sysfs_set_sched("smt", sched_smt);
- if (ret)
- fprintf(stderr, _("Error setting sched-smt %s\n"),
- (ret == -ENODEV) ? "not supported" : "");
- }
-
/* Default is: set all CPUs */
if (bitmask_isallclear(cpus_chosen))
bitmask_setall(cpus_chosen);
These kernel interfaces got removed by: commit 8e7fbcbc22c12414bcc9dfdd683637f58fb32759 Author: Peter Zijlstra <peterz@infradead.org> Date: Mon Jan 9 11:28:35 2012 +0100 sched: Remove stale power aware scheduling remnants and dysfunctional knobs No need to further keep them as userspace configurations. Signed-off-by: Thomas Renninger <trenn@suse.de> --- tools/power/cpupower/man/cpupower-info.1 | 2 +- tools/power/cpupower/man/cpupower-set.1 | 31 +------------------- tools/power/cpupower/utils/cpupower-info.c | 35 +---------------------- tools/power/cpupower/utils/cpupower-set.c | 43 +-------------------------- 4 files changed, 5 insertions(+), 106 deletions(-)