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scripts/image: use 256kb blocksize for squashfs images #2992

Merged
merged 1 commit into from
Oct 3, 2018
Merged

scripts/image: use 256kb blocksize for squashfs images #2992

merged 1 commit into from
Oct 3, 2018

Commits on Sep 22, 2018

  1. scripts/image: use custom blocksizes for squashfs images 

    Squashfs allows configuring a blocksize between 4KB and 1MB. The default is
128KB. Increasing blocksize, in general, increases compression efficiency
at a cost of increased access time. Using 256KB for a blocksize appears to be
a sweet spot balancing the two for gzip and zstd. Blocksize 512KB appears
right for lzo.

Gzip decreases by ~700KB.
Lzo decreases by ~1.25MB.
Zstd decreaes by ~2.5MB.

Signed-off-by: Ian Leonard <antonlacon@gmail.com>
    @antonlacon
    antonlacon committed Sep 22, 2018
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