On Wed, 18 Jul 2007, Scott Bennett wrote:
[Cc: list trimmed a bit more --SB]
On Tue, 17 Jul 2007 23:42:14 +0200 Max Laier <[EMAIL PROTECTED]>
[ Excess CC-list ... testers needed!!! ]
On Tuesday 17 July 2007, Robert Watson wrote:
I missed Robert Watson's start of thread, so I'm jumping in here
with a question.
This is a reminder e-mail that, in the very near future, Giant
compatibility shims for network protocols will be removed.
How, if at all, will this affect qemu users? qemu exits unless AIO is
present in the kernel (or aio.ko has been kldload-ed). In FreeBSD 6.2, AIO
results in a warning message at boot time that says AIO is not MPSAFE and
that therefore the networking stack will take a deep performance hit.
Per several earlier e-mails in the thread, AIO is MPSAFE in FreeBSD 7.0 and,
as such, unaffected by this change. As a result, I would expect that
applications depending on AIO should now perform significantly better (but
have done no measurement in this area).
Robert N M Watson
Computer Laboratory
University of Cambridge
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