diff options
Diffstat (limited to 'tools/power/cpupower/man/cpupower-set.1')
-rw-r--r-- | tools/power/cpupower/man/cpupower-set.1 | 31 |
1 files changed, 1 insertions, 30 deletions
diff --git a/tools/power/cpupower/man/cpupower-set.1 b/tools/power/cpupower/man/cpupower-set.1 index 9dbd536518ab..2bcc696f4496 100644 --- a/tools/power/cpupower/man/cpupower-set.1 +++ b/tools/power/cpupower/man/cpupower-set.1 | |||
@@ -3,7 +3,7 @@ | |||
3 | cpupower\-set \- Set processor power related kernel or hardware configurations | 3 | cpupower\-set \- Set processor power related kernel or hardware configurations |
4 | .SH SYNOPSIS | 4 | .SH SYNOPSIS |
5 | .ft B | 5 | .ft B |
6 | .B cpupower set [ \-b VAL ] [ \-s VAL ] [ \-m VAL ] | 6 | .B cpupower set [ \-b VAL ] |
7 | 7 | ||
8 | 8 | ||
9 | .SH DESCRIPTION | 9 | .SH DESCRIPTION |
@@ -55,35 +55,6 @@ Use \fBcpupower -c all info -b\fP to verify. | |||
55 | 55 | ||
56 | This options needs the msr kernel driver (CONFIG_X86_MSR) loaded. | 56 | This options needs the msr kernel driver (CONFIG_X86_MSR) loaded. |
57 | .RE | 57 | .RE |
58 | .PP | ||
59 | \-\-sched\-mc, \-m [ VAL ] | ||
60 | .RE | ||
61 | \-\-sched\-smt, \-s [ VAL ] | ||
62 | .RS 4 | ||
63 | \-\-sched\-mc utilizes cores in one processor package/socket first before | ||
64 | processes are scheduled to other processor packages/sockets. | ||
65 | |||
66 | \-\-sched\-smt utilizes thread siblings of one processor core first before | ||
67 | processes are scheduled to other cores. | ||
68 | |||
69 | The impact on power consumption and performance (positiv or negativ) heavily | ||
70 | depends on processor support for deep sleep states, frequency scaling and | ||
71 | frequency boost modes and their dependencies between other thread siblings | ||
72 | and processor cores. | ||
73 | |||
74 | Taken over from kernel documentation: | ||
75 | |||
76 | Adjust the kernel's multi-core scheduler support. | ||
77 | |||
78 | Possible values are: | ||
79 | .RS 2 | ||
80 | 0 - No power saving load balance (default value) | ||
81 | |||
82 | 1 - Fill one thread/core/package first for long running threads | ||
83 | |||
84 | 2 - Also bias task wakeups to semi-idle cpu package for power | ||
85 | savings | ||
86 | .RE | ||
87 | 58 | ||
88 | .SH "SEE ALSO" | 59 | .SH "SEE ALSO" |
89 | cpupower-info(1), cpupower-monitor(1), powertop(1) | 60 | cpupower-info(1), cpupower-monitor(1), powertop(1) |