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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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