1. 03 5月, 2007 1 次提交
  2. 21 2月, 2007 2 次提交
  3. 13 12月, 2006 1 次提交
  4. 07 12月, 2006 2 次提交
  5. 16 10月, 2006 1 次提交
    • V
      [CPUFREQ][8/8] acpi-cpufreq: Add support for freq feedback from hardware · dfde5d62
      Venkatesh Pallipadi 提交于
      Enable ondemand governor and acpi-cpufreq to use IA32_APERF and IA32_MPERF MSR
      to get active frequency feedback for the last sampling interval. This will
      make ondemand take right frequency decisions when hardware coordination of
      frequency is going on.
      
      Without APERF/MPERF, ondemand can take wrong decision at times due
      to underlying hardware coordination or TM2.
      Example:
      * CPU 0 and CPU 1 are hardware cooridnated.
      * CPU 1 running at highest frequency.
      * CPU 0 was running at highest freq. Now ondemand reduces it to
        some intermediate frequency based on utilization.
      * Due to underlying hardware coordination with other CPU 1, CPU 0 continues to
        run at highest frequency (as long as other CPU is at highest).
      * When ondemand samples CPU 0 again next time, without actual frequency
        feedback from APERF/MPERF, it will think that previous frequency change
        was successful and can go to wrong target frequency. This is because it
        thinks that utilization it has got this sampling interval is when running at
        intermediate frequency, rather than actual highest frequency.
      
      More information about IA32_APERF IA32_MPERF MSR:
      Refer to IA-32 Intel® Architecture Software Developer's Manual at
      http://developer.intel.comSigned-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
      Signed-off-by: NDave Jones <davej@redhat.com>
      dfde5d62
  6. 26 9月, 2006 1 次提交
  7. 21 11月, 2005 1 次提交
  8. 15 11月, 2005 1 次提交
  9. 30 9月, 2005 1 次提交
  10. 13 9月, 2005 2 次提交
  11. 29 7月, 2005 1 次提交
  12. 24 6月, 2005 1 次提交
  13. 17 4月, 2005 2 次提交
    • A
      [PATCH] x86_64: Switch SMP bootup over to new CPU hotplug state machine · a8ab26fe
      Andi Kleen 提交于
      This will allow hotplug CPU in the future and in general cleans up a lot of
      crufty code.  It also should plug some races that the old hackish way
      introduces.  Remove one old race workaround in NMI watchdog setup that is not
      needed anymore.
      
      I removed the old total sum of bogomips reporting code.  The brag value of
      BogoMips has been greatly devalued in the last years on the open market.
      
      Real CPU hotplug will need some more work, but the infrastructure for it is
      there now.
      
      One drawback: the new TSC sync algorithm is less accurate than before.  The
      old way of zeroing TSCs is too intrusive to do later.  Instead the TSC of the
      BP is duplicated now, which is less accurate.
      
      akpm:
      
      - sync_tsc_bp_init seems to have the sense of `init' inverted.
      
      - SPIN_LOCK_UNLOCKED is deprecated - use DEFINE_SPINLOCK.
      
      Cc: <rusty@rustcorp.com.au>
      Cc: <mingo@elte.hu>
      Signed-off-by: NAndi Kleen <ak@suse.de>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      a8ab26fe
    • L
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds 提交于
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4