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.

--
SUSE Labs, Novell Inc.
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