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SubjectRe: Question about memory usage in 2.4 vs 2.2
On Tue, 20 Mar 2001, Josh Grebe wrote:

> slabinfo reports:
> inode_cache 189974 243512 480 30439 30439 1 : 124 62
> dentry_cache 201179 341940 128 11398 11398 1 : 252 126
<name> <used> <allocd> | <used> <allocd>
<in objects> <size> <in pages>

> However, I am hard pressed to find documentation on how to actually
> read this data, especially on a SMP box. Could someone give me a brief
> runwdown?

See above. The columns further to the right are debugging info.

> Also, if this memory is cached, wouldn't it make sense if it were
> reported as part of the total cached memory in /proc/meminfo?

I'd definately like to see this. It would be great if somebody
would sit down and implement this. <hint> <hint>

> And can this behavior be tuned so that it uses less of the overall
> memory?

This isn't currently possible. Also, I suspect what we really want
for most situations is a way to better balance between the different
uses of memory. Again, patches are welcome (I haven't figured out a
way to take care of this balancing yet ... maybe we DO want some way
of limiting memory usage of each subsystem??).


Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

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