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    SubjectRe: Memory pressure handling with iSCSI
    Badari Pulavarty <> wrote:
    > After KS & OLS discussions about memory pressure, I wanted to re-do
    > iSCSI testing with "dd"s to see if we are throttling writes.
    > I created 50 10-GB ext3 filesystems on iSCSI luns. Test is simple
    > 50 dds (one per filesystem). System seems to throttle memory properly
    > and making progress. (Machine doesn't respond very well for anything
    > else, but my vmstat keeps running - 100% sys time).

    It's important to monitor /proc/meminfo too - the amount of dirty/writeback
    pages, etc.

    btw, 100% system time is quite appalling. Are you sure vmstat is telling
    the truth? If so, where's it all being spent?

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      Last update: 2005-07-26 20:37    [W:0.019 / U:3.936 seconds]
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