Re: [PATCH 1/5] freepgt: free_pgtables use vma list
From: Nick Piggin
Date: Tue Mar 22 2005 - 19:21:15 EST
David S. Miller wrote:
On Wed, 23 Mar 2005 10:32:10 +1100
Nick Piggin <nickpiggin@xxxxxxxxxxxx> wrote:
I think David's on the right track - I think there's something a
bit wrong at the top. In my reply to Andrew in this thread I
posted a patch which may at least get things working...
We have to do the "if (ceiling)" check in every spot where
we mask it in some way, and if it falls to zero from non-zero
due to the masking, we skip.
That gives me a mostly working kernel.
I see. Tricky.
Bad news is that while lat_proc's fork and exec tests improve
dramatically, shell performance is way down on sparc64.
I'll post before and after numbers in a bit. Note, this is
just with Hugh's base patch plus bug fixes.
That's interesting. The only "extra" stuff Hugh's should be
doing is the vma traversal.
The single walk patch seems to fit in quite well with Hugh's
updated patchset. I haven't quite worked out how to best do
hugepages, but it is easily possible. But I won't dust that
off again until Hugh's is nicely tested and working.
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