Messages in this thread | | | Date | Tue, 18 Nov 1997 11:47:26 +0100 (MET) | From | Rik van Riel <> | Subject | vhand-2.1.64... problems solved |
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Hi there,
I've found the cause for vhand eating too much memory. Well, I think I have... I think it is because kswapd would wake up vhand after 3 failures, while vhand would guarantee that 1/32nd of memory is ready to swap out... Now, putting KSWAPD_MAX_FAIL at 128 (!) has alleviated this problem, it's not over yet, but at least it's not severe. (at the moment I'm looking at an uncharged kswapd and 5% max for vhand. probably vhand gets billed for kswapd :-) ... somebody with an Alpha (HZ=1024) should take a closer look at this...
I also merged my patch with the excellent network_atomic_alloc_59 patch from Zlato Calusic <Zlato.Calusic@CARNet.hr>. Thanks Zlato!
------------- Vhand is a patch that improves system responsiveness when memory is short. It does this by also aging shared memory and buffers. It also applies a fairer aging sceme to the aging of normal program pages. Although this patch is reported to be rock-solid, I still consider it Beta. This is mainly because I've only had about 15 success stories in my mailbox (and no failures:-).
You can find the patch on linux-mama <http://www.huwig.de/linux/mama/> and on my home page <http://www.fys.ruu.nl/~riel/>. -------------
Please send success-stories, bug-reports, bugfixes and flames to me. Anything will help...
Rik.
---------- Send Linux memory-management wishes to me: I'm currently looking for something to hack...
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