Messages in this thread | | | Date | Sun, 10 May 2009 23:59:54 +0900 | Subject | Re: [PATCH -mm] vmscan: make mapped executable pages the first class citizen | From | KOSAKI Motohiro <> |
| |
Hi
>> Secondly it moves the pressure from the storage volume holding the system >> binaries and libraries to the swap device which already has to deal with >> a lot of random (and thus expensive) I/O, as well as the users filestore >> for mapped objects there - which may even be on a USB thumbdrive. > > Preserving the PROT_EXEC pages over streaming IO should not > move much (if any) pressure from the file LRUs onto the > swap-backed (anon) LRUs.
I don't think this is good example. this issue is already solved by your patch. Thus this patch don't improve streaming IO issue.
| |