Anonymous memory on machines without swap

DISCUSSION Sitsofe Wheeler 2 participants 2 messages Sep 1, 2008 Memory management

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Sitsofe Wheeler

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2008-09-01 18:11 UTC #0 lore raw

Hi,

Is it worth having the anonymous memory option turned on in kconfig when using the kernel on a machine which has no swap/swapfiles? Does it improve memory decisions in some secret way (even though there is no swap available) or would it just be completely redundant?

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Hugh Dickins

2008-09-01 19:09 UTC #1 lore raw

Quoted 5 lines · Sitsofe Wheeler

Is it worth having the anonymous memory option turned on in kconfig when using the kernel on a machine which has no swap/swapfiles? Does it improve memory decisions in some secret way (even though there is no swap available) or would it just be completely redundant?

Which is the anonymous memory option in kconfig?

There is CONFIG_SWAP, which you might as well turn off if you don't intend to use swap/swapfiles. I don't think it makes any difference to memory decisions in such a case (they should be based on nr_swap_pages being 0), but it would shrink your kernel a little.

Hugh