Doug Barton wrote:
> Hmm... If I have a PII (Actually celeron 300A) or a PIII, which is
> better, 'pentium' or 'pentiumpro'? I would think the latter, but I've
> learned not to assume where gcc is concerned.
I think that 'pentium' would result in code that isn't as optimized as
'pentiumpro', but I've heard that 'pentium' has a lot less problems.
> Also, I have heard conflicting reports as to whether compiling the
> kernel/world with optimisations is a good thing. Anyone care to (re)open
> that can of worms?
I compile my kernel/world with -mpentium -O3 -pipe. The only problem
I've seen so far were spurious random reboots that would occur about
2-3 times a month. But, that was last summer, and hasn't happened
since. Something else must have been the culprit. (Maybe -current
wasn't as stable last summer.) With the aforementioned CFLAGS, I have
a pretty reliable and stable system.
I've heard that -mpentiumpro can be pretty buggy, and it can actually
result in slower code than -mpentium for certain pentium types. I
trust plain -mpentium, as it has been very reliable for me, except for
some compile-time errors caused by the optimization (Qt).
- Donn
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