Messages in this thread | | | Date | Fri, 12 Jan 2007 15:30:49 +1100 | From | Nick Piggin <> | Subject | Re: O_DIRECT question |
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Bill Davidsen wrote: > Nick Piggin wrote: > >> Aubrey wrote: >> >> Exactly, and the *real* fix is to modify userspace not to make > >> PAGE_SIZE >> mallocs[*] if it is to be nommu friendly. It is the kernel hacks to do >> things >> like limit cache size that are the bandaids. > > > Tuning the system to work appropriately for a given load is not a > band-aid.
We are talking about about fragmentation. And limiting pagecache to try to avoid fragmentation is a bandaid, especially when the problem can be solved (not just papered over, but solved) in userspace.
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