On Mon, 2006-01-23 at 12:31 -0500, Mike A. Harris wrote:
Ralf Corsepius wrote:
> On Mon, 2006-01-23 at 07:53 -0600, Josh Boyer wrote:
>
>>>On Mon, 2006-01-23 at 11:30 +0900, Warren Togami wrote:
>
>
>>>Going off at a tangent....what would people think of the idea of
>>>switching to -Os in $RPM_OPT_FLAGS _after_ FC5 is released?
>>
>>If it results in some form of improvement in performance, I'm all for it.
>
>
> The "s" in -Os stands for "size", not for "speed". So
if -Os compiled
> code-execution is faster than the default CFLAGS, something must be
> broken elsewhere.
Not necessarily. The reduced size of the executable makes more
efficient use of CPU cache, which can have a net result of increased
speed as well.
I guess you have benchmarking code to prove this claim to upstream? ;)
Ralf