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    Subject/proc/uptime idle counter remains at 0

    starting from v2.6.28-4930-g79741dd lasting thru at least v2.6.29.1,
    the second field of /proc/uptime always shows 0.00. This happens for
    both the typical i386 (my case) and on an ARM (according to Michael,

    From the commit log of 79741dd:

    """The cpu time spent by the idle process actually doing
    something is currently accounted as idle time. This is plain
    wrong, the architectures that support VIRT_CPU_ACCOUNTING=y
    can do better: distinguish between the time spent doing
    nothing and the time spent by idle doing work. The first is
    accounted with account_idle_time and the second with

    Citing Michael from our irc conversation:

    """the writer[committer] [says] that [the] idle process time
    isn't really idle time ... but that's all that /proc/uptime
    looks at. I guess fs/proc/uptime.c needs to catch up."""

    So, were the updates to uptime.c missed, or do we now live on with
    /proc/uptime constantly having 0?


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      Last update: 2009-05-09 10:09    [W:0.027 / U:3.144 seconds]
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