19 Aug, 2011

1 commit

• 498ca793d   cpupower: use man(1) when calling "cpupower help subcommand" ... Browse Code »

  Instead of printing something non-formatted to stdout, call
  man(1) to show the man page for the proper subcommand.

  Signed-off-by: Dominik Brodowski

  Dominik Brodowski

  2011-08-19 23:13:56 +0800  

16 Aug, 2011

4 commits

• 9ee31f618   cpupower: Make monitor command -c/--cpu aware ... Browse Code »

  This allows for example:
  cpupower -c 2-4,6 monitor -m Mperf
  |Mperf
  PKG |CORE|CPU | C0 | Cx | Freq
  0| 8| 4| 2.42| 97.58| 1353
  0| 16| 2| 14.38| 85.62| 1928
  0| 24| 6| 1.76| 98.24| 1442
  1| 16| 3| 15.53| 84.47| 1650

  CPUs always get resorted for package, core then cpu id if it could get read out
  (or however you name these topology levels...).
  Still this is a nice way to keep the overview if a test binary is bound to
  a specific CPU or if one wants to show all CPUs inside a package or similar.

  Still missing: Do not measure not available cores to reduce the overhead
  and achieve better results.

  Signed-off-by: Thomas Renninger
  Signed-off-by: Dominik Brodowski

  Thomas Renninger

  2011-08-16 02:03:16 +0800  
• 7c74d2bc5   cpupower: Better detect offlined CPUs ... Browse Code »

  Before, checking for offlined CPUs was done dirty and
  it was checked whether topology parsing returned -1 values.
  But this is a valid case on a Xen (and possibly other) kernels.

  Do proper online/offline checking, also take CONFIG_HOTPLUG_CPU
  option into account (no /sys/devices/../cpuX/online file).

  Signed-off-by: Thomas Renninger
  Signed-off-by: Dominik Brodowski

  Thomas Renninger

  2011-08-16 02:03:10 +0800  
• 88f984e0e   cpupower: Do not show an empty Idle_Stats monitor if no idle driver is available ... Browse Code »

  By taking error values of:
  sysfs_get_idlestate_count(..);
  into account.

  Signed-off-by: Thomas Renninger
  Signed-off-by: Dominik Brodowski

  Thomas Renninger

  2011-08-16 02:03:05 +0800  
• 2dfc818b3   cpupower: mperf monitor - Use TSC to calculate max frequency if possible ... Browse Code »

  Which makes the implementation independent from cpufreq drivers.
  Therefore this would also work on a Xen kernel where the hypervisor
  is doing frequency switching and idle entering.

  Signed-off-by: Thomas Renninger
  Signed-off-by: Dominik Brodowski

  Thomas Renninger

  2011-08-16 02:02:59 +0800  

30 Jul, 2011

2 commits

• b510b5412   cpupowerutils: idle_monitor - ConfigStyle bugfixes ... Browse Code »

  Signed-off-by: Dominik Brodowski

  Dominik Brodowski

  2011-07-30 00:35:38 +0800  
• 7fe2f6399   cpupowerutils - cpufrequtils extended with quite some features ... Browse Code »

  CPU power consumption vs performance tuning is no longer
  limited to CPU frequency switching anymore: deep sleep states,
  traditional dynamic frequency scaling and hidden turbo/boost
  frequencies are tied close together and depend on each other.
  The first two exist on different architectures like PPC, Itanium and
  ARM, the latter (so far) only on X86. On X86 the APU (CPU+GPU) will
  only run most efficiently if CPU and GPU has proper power management
  in place.

  Users and Developers want to have *one* tool to get an overview what
  their system supports and to monitor and debug CPU power management
  in detail. The tool should compile and work on as many architectures
  as possible.

  Once this tool stabilizes a bit, it is intended to replace the
  Intel-specific tools in tools/power/x86

  Signed-off-by: Dominik Brodowski

  Dominik Brodowski

  2011-07-30 00:35:36 +0800