6.3. Benchmark results-i586
For a Pentium CPU i586 with compiler version egcs-2.91.66, the best optimization options would be:
CFLAGS=-O3 -march=pentium -mcpu=pentium -ffast-math -funroll-loops -fomit-frame-pointer -fforce-mem -fforce-addr -malign-double -fno-exceptions
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Comparitive analysis chart with the above mentioned flags