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Release Notes

Unreleased

Fixed

  • #8 pkg-config file is broken when CMAKE_INSTALL_{INCLUDE,LIB}DIR is absolute (Alex Shpilkin)
  • CMake: uninstall script: CMP0153 developer warning about using exec_program.

v0.6.0 - 2022-05-13

Added

  • powercap-info: control type name no longer required - will print info for all control types if not set

Changed

  • Powercap CMake package config helper now uses package-specific name for global components variable. See CMake Issue #23112 and CMake Merge Request #6975 for reasoning and technical details.
  • Internal tweaks based on testing with additional compiler flags

v0.5.0 - 2021-12-09

Added

  • CMake installation components

Changed

  • Increased minimum CMake version from 3.1 to 3.12
  • CMake package config now exports binaries in a 'Utils' component rather than parent package

v0.4.0 - 2021-04-25

Fixed

  • powercap.h: header documentation for 'powercap_*_file_get_name' functions' return behavior
  • rapl-{info,set}: deprecation messages that specified non-existent alternatives

Added

  • Functions to support opening files in powercap.h:
    • 'powercap_control_type_file_open'
    • 'powercap_zone_file_open'
    • 'powercap_constraint_file_open'
  • CMake helper to find powercap without relying on pkg-config

Changed

  • Binaries powercap-{info,set} now accept the control type argument without requiring a preceding -p flag
  • Increased minimum CMake version from 2.8.12 to 3.1

Deprecated

  • Flag '-p/--control-type' in powercap-{info,set} - specify control type name as the first positional argument instead
  • Add compiler deprecation attributes to deprecated functions

v0.3.1 - 2020-11-08

Fixed

  • #6 powercap-common-test:test_snprintf_base_path fails on ppc64el architecture

v0.3.0 - 2020-08-15

Added

  • Support for top-level control type
    • Struct 'powercap_control_type', enum 'powercap_control_type_file', and associated functions in powercap.h:
      • 'powercap_control_type_get_enabled'
      • 'powercap_control_type_set_enabled'
      • 'powercap_control_type_file_get_name'
    • Functions in powercap-sysfs.h:
      • 'powercap_sysfs_control_type_get_enabled'
      • 'powercap_sysfs_control_type_set_enabled'
    • Functions in powercap-rapl.h:
      • 'powercap_rapl_control_is_supported'
      • 'powercap_rapl_control_is_enabled'
      • 'powercap_rapl_control_set_enabled'
    • Argument '--enabled' to powercap-{info,set} for getting/setting control type enabled field
  • Function 'powercap_rapl_get_num_instances' in powercap-rapl.h (supersedes 'powercap_rapl_get_num_packages')
  • Argument '--nconstraints' to powercap-info for getting the number of zone constraints

Changed

  • Increased minimum CMake version from 2.8.5 to 2.8.12 to support target_compile_definitions
  • Updated 'powercap-{info,set}' man pages
  • Argument '--zone' for powercap-set no longer required due to introduction of '--enabled' argument
  • Disabled logging by default (in general, libraries shouldn't print output unless requested)

Deprecated

  • Binaries rapl-{info,set} - use powercap-{info,set} instead
  • Interface powercap-rapl-sysfs.h - use powercap-sysfs.h directly instead
  • Function 'powercap_rapl_get_num_packages' in powercap-rapl.h - use 'powercap_rapl_get_num_instances' instead

Fixed

  • Fixed #4: powercap-rapl now checks if parent zone is PACKAGE or PSYS

v0.2.0 - 2019-12-03

Added

  • This RELEASES.md file
  • Multiarch support (use GNU standard installation directories)
  • Additional documentation in README
  • Function 'rapl_sysfs_zone_exists' in powercap-rapl-sysfs.h
  • Command line long option '--zone' to rapl-info and rapl-set
  • Functions to powercap-rapl-sysfs.h allowed by the powercap API that RAPL doesn't support (but could in the future)
  • Options to rapl-info and rapl-set to support optional powercap features not currently implemented in RAPL

Changed

  • Increased minimum CMake version from 2.8 to 2.8.5 to support GNUInstallDirs
  • More pedantic man page source formatting
  • RAPL sysfs 'pkg' parameter names changed to 'zone' to improve generality
  • RAPL 'package' parameter names changed to 'id' to improve generality
  • On failure, binaries now exit with positive error codes instead of negative values

Deprecated

  • Function 'rapl_sysfs_pkg_exists' in powercap-rapl-sysfs.h - use 'rapl_sysfs_zone_exists' instead
  • Function 'rapl_sysfs_sz_exists' in powercap-rapl-sysfs.h - use 'rapl_sysfs_zone_exists' instead
  • Command line long option '--package' for rapl-info and rapl-set - use '--zone' instead

Removed

  • Removed private symbol exports in shared object library (already patched in Debian)
  • Undocumented (and unintended) --package long option from powercap-set

Fixed

  • Fixed #1: Kernel uses hexadecimal numbers in directory paths, not decimal

v0.1.1 - 2017-09-21

Added

  • Added stateless interfaces to sysfs
  • Added powercap-info, powercap-set, rapl-info, and rapl-set binaries and man pages
  • Added VERSION and SOVERSION to shared object libraries

Changed

  • Update license to use author as copyright holder

v0.1.0 - 2017-06-09

Added

  • Initial public release