From: William Lee Irwin III <wli@holomorphy.com>
Date: Sun, 8 Sep 2002 01:28:21 -0700
But if this were truly the issue, the allocation and deallocation
overhead for pagetables should show up as additional pressure
against zone->lock.
The big gain is not only that allocation/free is cheap, also
page table entries tend to hit in cpu cache for even freshly
allocated page tables.
I think that is the bit that would show up in the mmap lmbench
test.
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