Re: [PATCH] i386 rw_semaphores fix

[Andi Kleen]

On Wed, Apr 11, 2001 at 02:56:32AM +0200, David Weinehall wrote:
> My reasoning is that the choice of computer is a direct function of
> your financial situation. I can get hold of a lot of 386's/486's, but
> however old a Pentium may be, people are still reluctant to give away
> those. Doing the sometimes necessary updates on my 386:en is already
> painfully slow, and I'd rather not take another performance hit.

As long as you don't use multithreaded applications there is no performance
hit with a kernel-mode CMPXCHG handler. iirc most multithreaded applications
are either too bloated for a 386 anyways, or trivial so that it doesn't matter.

-Andi