Re: [lockup] Re: objrmap-core-1 (rmap removal for file mappings to avoid 4:4 in <=16G machines)

From: Andrea Arcangeli
Date: Tue Mar 16 2004 - 09:03:02 EST


On Tue, Mar 16, 2004 at 04:39:50AM -0300, Marcelo Tosatti wrote:
> What are the problems you are facing ? Yes, I could read the previous
> posts, etc. but a nice resume is always good, for me, for others, and for
> you :)

the primary problem of rmap is the memory consumption and the slowdown
during things like parallel compiles in 32-ways. on 32bit and 64bit
archs.

> Yes, 4:4 tlb flushing is, hum, not very cool.

and it can't help avoiding to waste several gigs of ram on the 64bit ;).
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