Messages in this thread Patch in this message | | | Date | Sun, 23 Jan 2000 01:39:51 +0100 (CET) | From | Rik van Riel <> | Subject | [PATCH] kswapd less agressive |
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Hi Alan, Andrea,
a few people (hi Andrea :)) have commented that kswapd is somewhat too agressive in 2.2.15pre4. This patch should fix that (but don't integrate it yet, I have not tested it yet).
Basically kswapd used to agressively free pages until it had reached freepages.high. Now kswapd will only free pages agressively up to freepages.low, above that it will pause if it finds it's ->need_resched set. (which should bring us back to freeing in the background)
Everyone interested: please test 2.2.15pre4 with and without this test and tell us your results, thank you.
regards,
Rik -- The Internet is not a network of computers. It is a network of people. That is its real strength.
--- vmscan.c.combo Sun Jan 23 01:06:50 2000 +++ vmscan.c Sun Jan 23 01:06:01 2000 @@ -498,6 +498,8 @@ if (!do_try_to_free_pages(GFP_KSWAPD)) break; if (tsk->need_resched) + if (nr_free_pages > freepages.low) + break; schedule(); } run_task_queue(&tq_disk);
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