Messages in this thread | | | Date | Mon, 23 Sep 2002 13:16:58 +1000 | From | Con Kolivas <> | Subject | Re: [BENCHMARK] gcc3.2 v 2.95.3 (contest and linux-2.5.38) |
| |
Quoting Robert Love <rml@tech9.net>:
> On Sun, 2002-09-22 at 23:04, Con Kolivas wrote: > > > IO Full Load: > > Kernel Time CPU > > 2.5.38 170.21 42% > > 2.5.38-gcc32 1405.25 8% > > Ugh?? Something is _seriously_ messed up here.
Agreed!
> The CPU utilization is only 8% but the time is nearly 10x worse. You > sure the only difference was the compiler? I could think gcc-3.2 makes > some poorer choices wrt code optimization, but nothing feasible can come > to mind that would produce such terrible results.
Absolutely certain. I'm shaking from the results still... hard to type...
> Also, I believe RedHat is compiling their kernel in 8.0 with gcc-3.2, > unless they reintroduced kgcc. Surely that are not seeing these abysmal > numbers.
contest is a new benchmark. Noone has ever done anything like this before so it wouldn't have shown up in ordinary benchmarks. Mandrake has done the same with LM9.0 I believe
Con - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |