Messages in this thread | | | Date | Sat, 28 Mar 1998 05:15:48 +0300 | From | Itai Nahshon <> | Subject | Re: 2.1.91 swap performance: jerky. |
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Linus Torvalds wrote: > > This is intentional. The background swapping tries to swap out enough > stuff that we're never really low on memory (and that means that it > tries to keep at least one 128kB _contiguous_ area free, for example - > which in turn tends to indicate a few megs of real free memory). >
The idea sounds right, I have questions regarding limitation on current implementation: 1. If something is swapped out but the pages that it occupied never used later, will it have to be paged-in from disk or can the copy in memory be reused without any farter io?
2. Do the background swapper compete with interactive processes on the disk bandwith?
Itai -- Itai Nahshon nahshon@actcom.co.il Also nahshon@vnet.ibm.com
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