Re: /proc or ps tools bug? 2.6.3, time is off

From: Petri Kaukasoina (kaukasoi_at_elektroni.ee.tut.fi)
Date: 02/25/04

  • Next message: Len Brown: "[BKPATCH] ACPI for 2.6" 
    Date:	Wed, 25 Feb 2004 11:14:25 +0200
To: linux-kernel mailing list <linux-kernel@vger.kernel.org>

    On Tue, Feb 24, 2004 at 08:58:39PM -0500, David Ford wrote:
    > Kernel 2.6.3, procps 3.2.0
    >
    > Note the change in the timestamp as reported by 'ps' v.s. the time
    > reported by 'date'.
    >

    Hi,

    I reported the same problem some time ago. Could you type

    grep cpu /proc/stat; cat /proc/uptime

    for example, I get

    cpu 140708 1489 43735 21209021 292168 4879 4192
    cpu0 140708 1489 43735 21209021 292168 4879 4192
    216925.15 215037.34

    Then add jiffies and divide by uptime:

    (140708+1489+43735+21209021+292168+4879+4192)/216925.15 = 100.01695

    which is not 100 here as it should be. (On kernel 2.2.* I have it exactly
    100). ps uses Hertz=100 but it should be 170 ppm larger which makes an error
    of about 15 seconds a day. (Running without ntpd doesn't fix it.)
    -
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  • Next message: Len Brown: "[BKPATCH] ACPI for 2.6"

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