On 06/25/2007 03:23 AM, Rene Herman wrote:
On 06/25/2007 02:41 AM, Adrian Bunk wrote:
The interesting questions are:
Does -Os still sometimes generate faster code with gcc 4.2?
If yes, why?
I would wager that the CPU type makes more of a difference than the
compiler version. That is, I'd expect my Duron with it's "puny" 64K L1
to have a very different profile than it's Athlon brother with 256K L1.
Sorry, that should've been L2. And "its" ...
> Not to mention CPUs with as little as 8K L1 (P1).
I can't quote numbers -- it's a bit hard to test those things anyway as
it's a system-global effect and not su much that's easily isolated in a
dedicated benchmark.
And while I'm at it, "and not so much one that's [ ...]".
Rene.
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