Re: [reiserfs-dev] Re: Note describing poor dcache utilization under high memory pressure

Horst von Brand (brand@jupiter.cs.uni-dortmund.de)
Wed, 30 Jan 2002 11:07:44 +0100


Josh MacDonald <jmacd@CS.Berkeley.EDU> said:

[...]

> We're not talking about actively referenced entries, we're talking about
> entries on the d_lru list with zero references. Relocating those objects
> should not require any more locking than currently required to remove and
> re-insert the dcache entry. Right?

If they are unreferenced, they can be dropped without much cost. The
problem is what to do if you have 40 pages, each 1/10 filled with data in
active use.

-- 
Horst von Brand			     http://counter.li.org # 22616
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