admin-guide/pm/intel-speed-select.rst

4 Intel(R) Speed Select Technology User Guide
7 The Intel(R) Speed Select Technology (Intel(R) SST) provides a powerful new
14 - https://www.intel.com/content/www/us/en/architecture-and-technology/speed-select-technology-artic…
15 - https://builders.intel.com/docs/networkbuilders/intel-speed-select-technology-base-frequency-enha…
21 and configure these features is by using the Intel Speed Select utility.
23 This document explains how to use the Intel Speed Select tool to enumerate and
29 intel-speed-select configuration tool
32 Most Linux distribution packages may include the "intel-speed-select" tool. If not,
38 # cd tools/power/x86/intel-speed-select/
47 # intel-speed-select --help
52 # intel-speed-select perf-profile --help
56 # intel-speed-select perf-profile info --help
62 #intel-speed-select --info
66  # intel-speed-select --info
67  Intel(R) Speed Select Technology
79 Intel(R) Speed Select Technology - Performance Profile (Intel(R) SST-PP)
84 to choose a specific server configuration statically.  This Intel(R) Speed Select
91 "perf-profile" when using the Intel Speed Select tool.
99  # intel-speed-select perf-profile get-config-levels
100  Intel(R) Speed Select Technology
124  # intel-speed-select perf-profile get-lock-status
125  Intel(R) Speed Select Technology
143  # intel-speed-select perf-profile info -l 0
144  Intel(R) Speed Select Technology
155         speed-select-turbo-freq:disabled
156         speed-select-base-freq:disabled
169 understand more, execute "intel-speed-select perf-profile info" for performance
172  # intel-speed-select perf-profile info -l 4
173  Intel(R) Speed Select Technology
184         speed-select-turbo-freq:disabled
185         speed-select-base-freq:unsupported
198  # intel-speed-select perf-profile get-config-current-level
199  Intel(R) Speed Select Technology
243  # intel-speed-select -d perf-profile set-config-level -l 4 -o
244  Intel(R) Speed Select Technology
279  # intel-speed-select --oob
280  Intel(R) Speed Select Technology
291 other two Intel(R) SST features (Intel(R) Speed Select Technology - Base Frequency
292 (Intel(R) SST-BF) and Intel(R) Speed Select Technology - Turbo Frequency (Intel
299        speed-select-turbo-freq:disabled
300        speed-select-base-freq:disabled
303        speed-select-turbo-freq:disabled
304        speed-select-base-freq:unsupported
306 Given these results, the "speed-select-base-freq" (Intel(R) SST-BF) in level 4
309 This means that at performance level 4, the "speed-select-base-freq" feature is
312 "speed-select-turbo-freq" (Intel(R) SST-TF) is supported at both performance
316 technology called Intel(R) Speed Select Technology - Core Power (Intel(R) SST-CP).
320 Intel(R) Speed Select Technology Core Power (Intel(R) SST-CP)
323 Intel(R) Speed Select Technology Core Power (Intel(R) SST-CP) is an interface that
343  # intel-speed-select core-power enable --help
344  Intel(R) Speed Select Technology
371  # intel-speed-select core-power enable
372  Intel(R) Speed Select Technology
390  # intel-speed-select -c 0 core-power info
391  Intel(R) Speed Select Technology
418  # intel-speed-select core-power config --help
419  Intel(R) Speed Select Technology
429  # intel-speed-select core-power config -c 0
430  Intel(R) Speed Select Technology
457  # intel-speed-select core-power get-config -c 0
458  Intel(R) Speed Select Technology
486  # intel-speed-select core-power assoc --help
487  Intel(R) Speed Select Technology
495  # intel-speed-select -c 10 core-power assoc -c 3
496  Intel(R) Speed Select Technology
511  # intel-speed-select -c 10 core-power get-assoc
512  Intel(R) Speed Select Technology
528 # intel-speed-select core-power disable
536 Intel(R) Speed Select Technology - Base Frequency (Intel(R) SST-BF)
539 The Intel(R) Speed Select Technology - Base Frequency (Intel(R) SST-BF) feature lets
546 The support of Intel(R) SST-BF depends on the Intel(R) Speed Select Technology -
556  # intel-speed-select -c 0 perf-profile info -l 0
557  Intel(R) Speed Select Technology
565         speed-select-base-freq:disabled
577 Based on the output of the "intel-speed-select perf-profile info -l 0" base
628  # intel-speed-select base-freq info -l 0
629  Intel(R) Speed Select Technology
634       speed-select-base-freq
658  # intel-speed-select base-freq enable -a
659  Intel(R) Speed Select Technology
673 also adjusts the priority of cores using Intel(R) Speed Select Technology Core
675 Intel(R) Speed Select Technology - Performance Profile (Intel(R) SST-PP) class to
725 # intel-speed-select base-freq disable -a
728 Intel(R) Speed Select Technology - Turbo Frequency (Intel(R) SST-TF)
740 The support of Intel(R) Speed Select Technology - Turbo Frequency (Intel(R) SST-TF)
741 depends on the Intel(R) Speed Select Technology - Performance Profile (Intel
750  # intel-speed-select -c 0 perf-profile info -l 0
751  Intel(R) Speed Select Technology
758         speed-select-turbo-freq:disabled
772  # intel-speed-select perf-profile info -l 0
773  Intel(R) Speed Select Technology
847  # intel-speed-select turbo-freq info -l 0
848  Intel(R) Speed Select Technology
853       speed-select-turbo-freq
869           speed-select-turbo-freq-clip-frequencies
888  # intel-speed-select -c 12,13 turbo-freq enable -a
889  Intel(R) Speed Select Technology
908 feature and also sets the CPUs to high and low priority using Intel Speed