linux kernel swap, advanced sandwich cashing

NASA Jeff <tallboy258@gmail.com>
13:26 (16 minutes ago)
to oliverthered

<oliverthered> yes, I can confirm it's locking up when it hits swap
<oliverthered> the issue is between 48 and 51
<oliverthered> I'll have a look and try to fix it
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<oliverthered> but in addition the kernel needs to be able to swap out stable user processes when active user processes start consuming more memory so the swap barrier isn't reached to the point that everything grinds to a halt. and imrpovement upon this 'crude' method would be to swap out inactive pages so that the load on the swap device is distributed so that when pages need to become active again only those pages need to be loaded
<oliverthered> of swap and other inactive pages swapped out. This should speed the whole thing up, especially as most feasibly usable older systems can be upgraded to SSD which should have reasonable performance when used as a swap device