[rescue] Perverse Question
mcguire at qyx.com
Wed Jun 11 22:01:01 CDT 2003
On Tuesday, June 10, 2003, at 05:38 PM, Frank Van Damme wrote:
>> You can get around this, but it requires a recompile. On BSDs you can
>> pull down everything and then do a make world. On SM51's etc it does
>> make a difference once you compile everything...
> Hm, my laptop is a sun4m... what CFLAGS are recommended for such a
> Given the thing has "only" 110 MHz and runs Debian - it can use some
For gcc, I'd definitely add "-mv8" to cause it to emit hardware
multiply/divide instructions. This will definitely have a noticeable
positive impact on performance.
There may be other optimizations that will help, but that's a biggie.
gcc's sun4m code generation isn't great, but it's not that terrible
(its sun4u code *is* terrible).
Dave McGuire "I've grown hair again, just
St. Petersburg, FL for the occasion." -Doc Shipley
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