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    SubjectRe: [PATCH v1 00/16] ext4: Add metadata checksumming
    >>>>> "Darrick" == Darrick J Wong <> writes:

    Darrick> I have some benchmarking data for various crc algorithms here:

    I've been meaning to update my own benchmark results from a few years
    ago but your table is much more comprehensive. Nice work!

    Darrick> Yes, the only downside to the slice-by-8 method is that it eats
    Darrick> 8K of data cache for the table. Not a huge issue on recent
    Darrick> Intel and POWER where the L1D is 32K, but I imagine it could be
    Darrick> painful elsewhere.

    I'll see if I can come up with something better for the DIF CRC. It's
    always calculated over either 512 or 4096-byte buffers.

    Martin K. Petersen Oracle Linux Engineering

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      Last update: 2011-09-06 15:03    [W:0.020 / U:101.404 seconds]
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