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    SubjectRe: [PATCH] shrink printk timestamp field
    On Fri, Aug 29, 2008 at 07:35:40PM -0400, Andrew Morton wrote:
    > On Wed, 27 Aug 2008 11:17:59 -0400 Joe Korty <joe.korty@ccur.com> wrote:
    >
    > > Shrink the printk timestamp field.
    > >
    > > Keep the printk timestamp from occupying more of the
    > > scarce, 80-column console line space than it really needs.
    > >
    >
    > This is a significant loss in utility.
    >
    > [ 16.817285] md: Autodetecting RAID arrays.
    > [ 16.817288] md: Scanned 0 and added 0 devices.
    > [ 16.817290] md: autorun ...
    > [ 16.817292] md: ... autorun DONE.
    >
    > This not-terribly-fast machine can emit printks into the log buffer
    > within two microseconds. That's a pretty useful ad-hoc timing
    > factility.
    >
    > This patch will reduce the precision by a factor of five hundred.

    I was looking at it from the point of view of finding out where the
    boot process was too slow. For that millisecs is enough. I am not
    sure where knowing printk output to the microsec would be useful for
    solving anything.

    Joe


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