Ocie:
> David Gould wrote:
>
> [snip]
> > Here is the Spinlock back off patch I promised. This does semi-random
> > backoff using select() to lessen throughput degradation due to spinlock
> > contention with large numbers of runnable backends.
>
> Does this actually use some sort of random number generator? I'm
No. Have a look at the patch.
> thinking that this may not be entirely necessary. With Ethernet, this
> is needed to avoid another colission, but with locks, one process is
> guaranteed to get a lock.
In the case where this comes into play, one process already has the lock.
We have already collided. We are trying to limit the number of additional
collisions.
-dg
David Gould dg@illustra.com 510.628.3783 or 510.305.9468
Informix Software (No, really) 300 Lakeside Drive Oakland, CA 94612
"(Windows NT) version 5.0 will build on a proven system architecture
and incorporate tens of thousands of bug fixes from version 4.0."
-- <http://www.microsoft.com/y2k.asp?A=7&B=5>
