lkml.org 
[lkml]   [2010]   [May]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [linux-pm] [PATCH 1/8] PM: Add suspend block api.
    On Thu, May 06, 2010 at 11:33:35AM -0700, Tony Lindgren wrote:
    > * Matthew Garrett <mjg@redhat.com> [100506 10:39]:
    > > On Thu, May 06, 2010 at 10:38:08AM -0700, Tony Lindgren wrote:
    > >
    > > > If your userspace keeps polling and has runaway timers, then you
    > > > could suspend it's parent process to idle the system?
    > >
    > > If your userspace is suspended, how does it process the events that
    > > generated a system wakeup? If we had a good answer to that then suspend
    > > blockers would be much less necessary.
    >
    > Well if your hardware runs off-while-idle or even just
    > retention-while-idle, then the basic shell works just fine waking up
    > every few seconds or so.

    And the untrusted userspace code that's waiting for a network packet?
    Adding a few seconds of latency isn't an option here.

    --
    Matthew Garrett | mjg59@srcf.ucam.org


    \
     
     \ /
      Last update: 2010-05-06 20:47    [W:0.022 / U:0.212 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site