Re: copy-on-write optimized faults

[Brian Fundakowski Feldman]

On Fri, 29 Oct 1999, Alan Cox wrote:

> Thanks to Bernd and everyone else who has responded.  Unless someone
> reports a case where the old "optimization" gets applied more often
> than 1 in ten million copy-on-write faults, I'm going to remove
> the old code in a few days.  At this frequency, the cost of deciding
> whether or not to apply the optimization on every copy-on-write fault
> is greater than what is saved those 26 times it is applied.

I get about 1.5PPM optimized COW faults:

  7734278 copy-on-write faults
       12 copy-on-write optimized faults

-- 
 Brian Fundakowski Feldman           \  FreeBSD: The Power to Serve!  /
 [EMAIL PROTECTED]                    `------------------------------'



To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message