lkml.org 
[lkml]   [2010]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [tip:irq/core] x86: Sanitize apb timer interrupt handling

    >x86: Sanitize apb timer interrupt handling
    >
    >Disable the interrupt in CPU_DEAD where it belongs.
    My main concern is the performance cost. The power management code for
    Moorestown system make use of the cpu hotplug code (disable_nonboot_cpus)
    but much more frequently. The system low power states are call S0 idle
    state (s0ix).

    Leaving the irq enabled at the chip and desc level between S0ix states
    might give some performance benefit. That was my original thought.
    Will it cause problems?

    Thanks,

    Jacob



    \
     
     \ /
      Last update: 2010-10-12 23:25    [W:6.299 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site