Anders Magnusson wrote:
> 
> > NetBSD 1.4.2 (GENERIC) #3: Fri Mar 17 01:10:11 PST 2000
> >
> > ttcp-t: 16777216 bytes in  53.53 real seconds = 306.06 KB/sec +++
> > ttcp-r: 16777216 bytes in  68.31 real seconds = 239.83 KB/sec +++
> >
> > NetBSD 1.5_BETA (GENERIC) #0: Sun Oct 22 19:31:24 PDT 2000
> >
> > ttcp-t: 16777216 bytes in  87.45 real seconds = 187.36 KB/sec +++
> > ttcp-r: 16777216 bytes in 102.36 real seconds = 160.07 KB/sec +++
> >
> These are the two interesting lines. Well, what's left is for someone
> to really profile the IP stack to find the problem...

           -------Sequential Output-------- ---Sequential Input-- --Random--
           -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
1.4.2   20    66 99.1   867 94.1   359 67.0    73 99.2   630 42.1  27.9 29.4
1.5_B   20    65 99.8   715 98.4   308 69.4    66 99.4   566 52.5  25.5 32.1

The disk benchmark also showed a similar drop in performance.

Might this be something more low-level?  I'm not sure what alas.

-- Ken