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    SubjectRe: Measuring tools - top and interrupts

    Yes you have to change the procps to read the new /proc/stat

    For example, after separating the load and disk IO measurements, also
    separating for per user at the kernel level, I had to introduce new code
    into procps/ to reflect those changes

    Otherwise those tools (top, uptime etc) would not know the new formats etc.

    Sydney University

    At 04:07 AM 6/24/2006 +0200, you wrote:
    >On 2006.06.22 09:58:08 -0700, Danial Thom wrote:
    > > And 75K pps may not be "much", but its still at
    > > least 10% of what the system can handle, so it
    > > should measure around a 10% load. 2.4 measures
    > > about 12% load. So the only conclusion is that
    > > load accounting is broken in 2.6.
    >Are you by chance using procps < 3.1.12? The kernel reports absolute
    >values for cpu usage, the conversion to percentage is done by top/vmstat
    >itself. And those old versions don't know about the new fields that 2.6
    >kernels have in /proc/stat, thus they simply ignore the si and hi
    >values, producing quite misleading results...
    >PS: procps 3.1.12 was released in 2003, so if DEC was stone age and my
    >assumption about your tools holds, then your tools are like... medieval :)
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