Pentium III CPU/FPU does not perform under QNX 4.24

I did some floating point bench mark tests on a Pentium III 933 MHz SBC
system running QNX 4.24. The results were very strange. It is five times
slower than a Pentium II 300 MHz SBC system. I tried all the possible
optimization flags and I got essentially the same results.

For the same tests performed under Linux, the pentium III 933 MHz system is
5-6 times faster than the Pentium II 300 MHz system.

I am wondering if this is a general problem for Pentium III under QNX4. Is
there anyway to fix it?

Shouqin Huo, Ph.D.
Quantum Magnetics.
San Died, CA