Re: [BENCHMARK] gcc3.2 v 2.95.3 (contest and linux-2.5.38)

[Robert Love]

On Sun, 2002-09-22 at 23:41, Andrew Morton wrote:

> Try gcc-2.91.66.  It might break the 45 second mark.
> 
> > IO Full Load:
> > Kernel                  Time            CPU
> > 2.5.38                  170.21          42%
> > 2.5.38-gcc32            1405.25         8%
> 
> The streaming write is stalling gcc's read for long enough for gcc's
> working set to be evicted.  And the working set cannot be reestablished
> because the streaming write prevents it.  Meltdown.
> 
> I have fixed this.  Hang around.

Ehh, I was under the impression he was benchmarking kernels compiled
WITH these compilers, using contest?

Your post seems to imply he was using the compilers as the benchmark. 
If so, I retract my previous post - I know gcc 3.x is slow as puke.  I
think, however, he is comparing the resulting kernels, in which case
there is a serious issue at hand...

	Robert Love