Matthew Dillon wrote:
>
> MADV_SEQUENTIAL *WILL* work. It changes the page fault
> read-behind/read-ahead. Normally the VM system reads behind a bit as well
> as reads ahead. If you set MADV_SEQUENTIAL it shifts to just doing
> read-ahead, and it does more of it.
So it works, then? GNU grep has this #ifdef'ed out, with a comment
about it impacting negatively on performance on BSD 4.1. I recall
some rants on this subject a couple of years ago... If it is
working, I'd like to change that 0 to 1 in our tree.
--
Daniel C. Sobral (8-DCS)
d...@newsguy.com
d...@freebsd.org
"Is it true that you're a millionaire's son who never worked a day
in your life?"
"Yeah, I guess so."
"Lemme tell you, son, you ain't missed a thing."
To Unsubscribe: send mail to majord...@freebsd.org
with "unsubscribe freebsd-hackers" in the body of the message
