that was ultrix though, which has two compilers: their cc, and vcc
the ultrix cc is not pcc

isildur

On Tue, 23 Jan 2001, Anders Magnusson wrote:

> > pcc also generates fast code. faster than gcc on vax at any rate.. i 
> > should do a more involved comparison than the little shootout between gcc 
> > and pcc and ultrix/vax cc that ragge and i did.. though we had machines 
> > of somewhat different characteristics, but pcc2's code was at least as 
> > fast as gcc's best optimization. 
> > 
> Well, I think you have a bad memory :-)
> Here's the test again:
> 
> ! Running the command:
> ! % echo "2 9999 ^ 3 6308 ^ / p" | /usr/bin/time ./dc
> ! 
> ! gave the following results:
> ! 
> ! cc:
> !        44.7 real        44.4 user         0.0 sys
> ! 
> ! vcc:
> !        51.0 real        50.8 user         0.0 sys  
> ! 
> ! gcc:
> !        31.3 real        31.1 user         0.0 sys  
> ! 
> 
> 
> This shows that pcc's code is almost 50% _slower_ than the gcc code, 
> and the DEC C compiler is even worse...
> 
> Gcc takes quite a while to compile, but generates rather good code.
> 
> There are other problems making the VAXen slow, though.
> 
> -- Ragge
>