>
> In this patch against 2.3.42 I fixed a cupole of bugs in the new memory
> balancing code that is been merged in the latest 2.3.x kernels:
>
> ftp://ftp.*.kernel.org/pub/linux/kernel/people/andrea/patches/v2.3/2.3.42/MM-balance-1.gz
>
> Comments are welcome.
>
> Andrea
>
I like the part of being able to poke kswapd via an interface
(wake_up_interruptible), this is something that might help numa
allocators ....
I hate the part of adding in more magic numbers to the balancing
logic, unless you can demonstrate how it helps. I know, 2.2
uses these magic numbers to set freepages.*, but I can't see a
logic to having min/max for zones. It is still probably acceptable
to have the magic numbers in 2.3 for freepages.* setting (at
least until we have a zone aware kswapd), for global stuff. If
you do decide to put in the min/max stuff, make sure to add
in the smarts to specify it from the command line (in
setup_mem_frac).
The ZONE_BALANCED macro is currently a good way to see whether
we really want to do more compute intensive classfree().
Kanoj
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