Hello!
On Tue, 2 May 2006, Robert Watson wrote:
options INVARIANTS
options INVARIANT_SUPPORT
In FreeBSD 5.x and FreeBSD 6.x, the INVARIANTS option has been significantly
expanded to test a much larger set of invariants, and also incorporate kernel
use-after-free checking, which involves memory scrubbing. This is great for
catching bugs, but it will have a significant performance impact, especially
for kernel-intensive loads.
So maybe it's time to add, say,
options INVARIANTS_EXTENDED
for these new and expensive checks, and leave only basic and cheap (yet
effective for bug hunting) asserts enabled when only
options INVARIANTS
is defined?
Robert N M Watson
Sincerely, Dmitry
--
Atlantis ISP, System Administrator
e-mail: [EMAIL PROTECTED]
nic-hdl: LYNX-RIPE
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