lkml.org 
[lkml]   [2005]   [Jul]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    Lee Revell <rlrevell@joe-job.com> wrote:
    >
    > On Wed, 2005-07-13 at 14:32 -0500, Dmitry Torokhov wrote:
    > > Hi,
    > >
    > > On 7/13/05, Lee Revell <rlrevell@joe-job.com> wrote:
    > > > On Wed, 2005-07-13 at 12:10 -0700, Linus Torvalds wrote:
    > > > > So we should aim for a HZ value that makes it easy to convert to and from
    > > > > the standard user-space interface formats. 100Hz, 250Hz and 1000Hz are all
    > > > > good values for that reason. 864 is not.
    > > >
    > > > How about 500? This might be good enough to solve the MIDI problem.
    > > >
    > >
    > > I would expect number of laptop users significatly outnumber ones
    > > driving MIDI so as a default entry 250 makes more sense IMHO.
    > >
    >
    > Alan tested it and said that 250HZ does not save much power anyway.
    >

    Len Brown, a year ago: "The bottom line number to laptop users is battery
    lifetime. Just today somebody complained to me that Windows gets twice the
    battery life that Linux does."

    And "Maybe I can get Andy Grover over in the moble lab to get some time on
    that fancy power measurement setup they have...

    "My expectation is if we want to beat the competition, we'll want the
    ability to go *under* 100Hz."

    But then, power consumption of the display should preponderate, so it's not
    clear.

    Len, any updates on the relationship between HZ and power consumption?
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-07-13 23:01    [W:0.022 / U:0.948 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site