gcj/253: problems with instanceof when compilation from .classfiles

Wed Jun 7 06:12:00 GMT 2000

One more set of timings, this time with optimization enabled:
 GRW>> FYI, my code is a simulation based tool, and compiling with gcj gives a
 GRW>> significant speedup over using a jit:
 GRW>> 
 GRW>> 10,000 iterations 100,000 iterations
 GRW>> ----------------- ------------------
 GRW>> Blackdown java 1.2.2 RC3 (w jit): 15 Seconds 143 Seconds
 GRW>> gcj: 9 Seconds 90 Seconds 
 gcj -02: 7 Seconds 73 Seconds
(-02 results agree with plain gcj and java results to 14 decimal places)
Using gcj with -02 cuts execution time in half. This will help a lot
because I have a set of simulations to run that would have taken about
week even using my 24 node beowulf cluster. This cuts it down to about 3
days.
Thanks guys!!!
Greg Warnes