[OpenBIOS] compiler speed

Klaus Seegebarth kseege at t-online.de
Mon Jun 24 11:06:03 CEST 2002

Segher Boessenkool wrote:
> > >[snip...snip]

> 1% speedup is a nice optimization, and 2% slowdown is a serious performance
> regression.
> 22% slowdown is just awful...

Hello Segher,

no flame war please, i appreciate Your work :-)
If you add "IMHO" to your statements, i will accept :-)

I only wanted to point out, that i have different needs than You.

My fastest and my slowest CPU differ by a factor of 1000 (100 000 % !)
in speed. Why should _i_ waste my time to look for 22% ? 

As all my computers live inside a machine in a production
environment, the 3 most important items for me are reliability,
reliability and reliability. A major influence on reliability
is the amount of energy consumed, so what i am really interested in
is a gcc-switch, which optimizes to minimum energy per task.
A faster completion of a task only leads to longer idle periods :-)

Just my 2 EuroCents


Please continue to look for 1% speedups, dont feel offenced, 
that i dont need them :-)

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