Messages in this thread | | | Date | Tue, 18 Sep 2007 12:49:49 +0200 | From | Jörn Engel <> | Subject | Re: [00/41] Large Blocksize Support V7 (adds memmap support) |
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On Tue, 18 September 2007 11:00:40 +0100, Mel Gorman wrote: > > We still lack data on what sort of workloads really benefit from large > blocks
Compressing filesystems like jffs2 and logfs gain better compression ratio with larger blocks. Going from 4KiB to 64KiB gave somewhere around 10% benefit iirc. Testdata was a 128MiB qemu root filesystem.
Granted, the same could be achieved by adding some extra code and a few bounce buffers to the filesystem. How suck a hack would perform I'd prefer not to find out, though. :)
Jörn
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