Messages in this thread | | | Date | Tue, 26 Jul 2005 11:11:10 -0700 | From | Andrew Morton <> | Subject | Re: Memory pressure handling with iSCSI |
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Badari Pulavarty <pbadari@us.ibm.com> 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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