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Linux: Improving kswapd

Sep 10, 2007, 06:00 (0 Talkback[s])

"'The current VM can get itself into trouble fairly easily on systems with a small ZONE_HIGHMEM, which is common on i686 computers with 1GB of memory,' Rik van Riel said explaining a small patch to cmscan.c. He continued, 'on one side, page_alloc() will allocate down to zone->pages_low, while on the other side, kswapd() and balance_pgdat() will try to free memory from every zone, until every zone has more free pages than zone->pages_high...'"

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