[comp.arch] SPEC, eqntott

preston@ariel.rice.edu (Preston Briggs) (03/05/91)

mslater@cup.portal.com (Michael Z Slater) writes:

>--------------------------------------------------------------------
>        Vendor      Moto  Moto  Intel Sun   MIPS  Moto  IBM     Intel
>        Achitecture 68040 68040 486   SPARC R3000 88000 RS/6000 i860
>        Cache       none  128K  128K  128K  128K  128K  64K/8K  none
>        Clock (MHz) 25    25    25    25    25    25    25      33  
>--------------------------------------------------------------------
>Integer gcc         12.4  13.8  13.8  13.8  15.5  17.5  17.8   11.5
>        espresso    12.8  13.4  12.2  11.6  17.7  19.4  20.7   20.0
>        li          14.9  15.5  16.8  11.2  20.4  20.7  19.8   17.7
>        eqntott     9.7    9.8  11.0  12.6  17.1  16.0  23.0   17.8
>-------------------------------------------------------------------

Does anyone know why the RS/6000 does relatively well on eqntott
versus it's relative performance on the other integer benchmarks.

Alternatively, why do the CISCy chips (040 and 486) do less well?

Speculations welcome.

Preston Briggs