Messages in this thread | | | Date | Wed, 18 Sep 2002 23:32:19 -0700 | From | Andrew Morton <> | Subject | Re: [BENCHMARK] EXT3 vs EXT2 results with rmap14a and testing with contest 0.34 |
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Andreas Dilger wrote: > > ... > > Kernel Time CPU > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 325.39 82% > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 411.47 64% > > I don't see this as hugely surprising. ext3 uses more CPU than ext2. > If you are using up the CPU doing other things, then naturally ext3 > will take a longer wall-clock time to complete the same tasks as ext2.
Yup. But here the CPU load is less; obviously some more seeking was done. That's fairly normal for ext3 - it has to write the journal as well as the filesystem.... > I know that Andrew has been doing a bunch of work to reduce ext3 CPU > usage/locking/etc., but I think that is all in 2.5 kernels. >
I had a little patch. Stephen is working on the big fix. - 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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