Re: lock performance on i386
Jason R Thorpe <[email protected]>
| Newsgroups | gmane.os.netbsd.devel.smp |
|---|---|
| Organization | Wasabi Systems, Inc. |
| Message-ID | <[email protected]> |
On Thu, Sep 19, 2002 at 07:30:05PM +0100, David Laight wrote:
> Which means that if the lock is contended then the cpu is
> doing continuous, expensive, locked operations on the bus.
> Which, IIRC, force a cache snoop? cycle on all the cpus.
Yes, this is a known issue. It's easy to fix, just haven't done it yet.
--
-- Jason R. Thorpe <[email protected]>