Search

8.22. cpupowerutils

download PDF
Updated cpupowerutils packages that fix several bugs and add one enhancement are now available for Red Hat Enterprise Linux 6.
The cpupowerutils packages provide a suite of tools to manage power states on appropriately enabled central processing units (CPU).

Bug Fixes

BZ#886225
Previously, some of the commands in the cpupowerutils packages were missing manual pages. Manual pages for the turbostat, x86_energy_perf_policy, cpufreq-bench, and cpufreq-bench_plot.sh commands have been added, thus fixing this bug.
BZ#886226
If a non-root user tried to run the cpufreq-bench utility, it terminated unexpectedly with a segmentation fault, and an ABRT notification appeared on the desktop. With this update, a warning message is displayed to the user instead, informing them that it is necessary to run the utility as root.
BZ#886227
Prior to this update, the x86_energy_perf_policy utility failed when it tried to open the /dev/cpu/*/msr/ directory. Consequently, a "permission denied" error message was returned. With this update, a new error message explains that the command needs root privileges and x86_energy_perf_policy cleanly exits.
BZ#886228
Previously, the interactive help for the x86_energy_perf_policy utility was short and confusing. The help text has been expanded to clarify the meaning of the command-line options.
BZ#914623
Due to the missing implementation for the "cpupower set -m" command, the error message is returned upon launching the command. Previously, this message wrongly implied that the sched-mc utility is not supported on the system. This update clarifies the message to clearly state that sched-mc is not yet implemented.
BZ#914787
Previously, running the "cpupower -v" or "cpupower --version" commands returned incorrect version information. This bug has been fixed and a selected component of cpupower now reports the correct version-release number.

Enhancement

BZ#852831
Intel turbostat v3.0 utility has been included in Red Hat Enterprise Linux. The utility is used to read current CPU core frequency and active C-states.
Users of cpupowerutils are advised to upgrade to these updated packages, which fix these bugs and add this enhancement.
Red Hat logoGithubRedditYoutubeTwitter

Learn

Try, buy, & sell

Communities

About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

© 2024 Red Hat, Inc.