2.5.8 final - another data point
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Running dbench 128 on ext2 mounted with delalloc and Andrew's patches from http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.8/
was 7.5x faster than 2.5.8 vanilla and 1.5x faster thanWow, good stuff - I'll have to pull those down
Hmm, I had to run e2fsck -f twice on the filesystem that ran dbench, tiobench, bonnie++ on nfs, and osdb. The filesystem was showing 52% used and is normally 1% used before/after testing. No big files on the fs. The directory where bonnie++ on nfs runs had some temporary directories that were not deletable. A bunch of files/directories were in lost+found after e2fsck. After removing the files, the fs was back to 1% used.
I backed up and did mke2fs in case there was any pre-existing/lingering corruption. So keep your karma up and test on a test box. :)
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Randy Hron
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Running dbench 128 on ext2 mounted with delalloc and Andrew's patches from http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.8/
was 7.5x faster than 2.5.8 vanilla and 1.5x faster thanWow, good stuff - I'll have to pull those down
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Hmm, I had to run e2fsck -f twice on the filesystem that ran dbench, tiobench, bonnie++ on nfs, and osdb. The filesystem was showing 52% used and is normally 1% used before/after testing. No big files on the fs. The directory where bonnie++ on nfs runs had some temporary directories that were not deletable. A bunch of files/directories were in lost+found after e2fsck. After removing the files, the fs was back to 1% used.
ho-hum. Presumably an unreservepage() got lost somewhere in the diff shuffling.
All I'm doing with the delayed-allocation code at present is keeping the diffs up to date. I haven't even compiled that stuff for over a week. All work at present is against
dallocbase-70-writeback. It's probably not a good use of
your time to test anything beyond that. Sorry about that.
I'll leave the later diffs available so anyone who's interested can see the multipage bio assembly stuff, but "dont use".
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