Messages in this thread | | | Date | Sun, 22 Sep 2002 20:41:51 -0700 | From | Andrew Morton <> | Subject | Re: [BENCHMARK] gcc3.2 v 2.95.3 (contest and linux-2.5.38) |
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Con Kolivas wrote: > > I performed contest benchmarks on kernel 2.5.38 when the kernel is compiled with > gcc3.2 to gcc2.95.3 > > warning: The following benchmarks may be disturbing to some viewers: > > No Load: > Kernel Time CPU > 2.5.38 68.25 99% > 2.5.38-gcc32 103.03 99% >
Try gcc-2.91.66. It might break the 45 second mark.
> IO Full Load: > Kernel Time CPU > 2.5.38 170.21 42% > 2.5.38-gcc32 1405.25 8%
The streaming write is stalling gcc's read for long enough for gcc's working set to be evicted. And the working set cannot be reestablished because the streaming write prevents it. Meltdown.
I have fixed this. Hang around. - 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/
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