Re: Known problems with dcache?

Daniel Jacobowitz
2003-01-10T23:21:58Z

On Fri, Jan 10, 2003 at 06:15:55PM -0500, Andrew Cagney wrote:
>
> >>Was it on an i386? If it was, the other other cache would easily skew
> >>any results.
> >
> >
> >Other other cache? Codestream doesn't affect this so I don't know what
> >you mean.
>
> It definitly affects things. Both codestream and dcache are chewing cpu
> cycles trying to cache instruction reads. A valid comparison would at
> least involve no dcache/codestream.

Sure; but it's overwhelmed by the LinuxThreads I/O, which doesn't touch
codestream at all; instruction reads weren't even a measurable time
last time I did this.

--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer