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base repository: raspberrypi/linux
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base: rpi-4.19.y
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head repository: s-abhinav/linux
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compare: rpi-4.19.y
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  • 1 commit
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Commits on Jul 15, 2020

  1. lib/raid6: add option to skip algo benchmarking 

    This is helpful for systems where fast startup time is important.
It is especially nice to avoid benchmarking RAID functions that are
never used (for example, BTRFS selects RAID6_PQ even if the parity RAID
mode is not in use).

This saves 250+ milliseconds of boot time on modern x86 and ARM systems
with a dozen or more available implementations.

The new option is defaulted to 'y' to match the previous behavior of
always benchmarking on init.

Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Signed-off-by: Shaohua Li <shli@fb.com>
    @danielverkamp @s-abhinav
    danielverkamp authored and s-abhinav committed Jul 15, 2020
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