Hi Gilad,

I've noticed CCREE is used with a LUKS-formatted disk, so I did some small
performance benchmarks.  The disk is an old 160 GiB SATA hard drive,
connected to either Salvator-XS (R-Car H3 ES2.0) or Koelsch (R-Car M2-W).

hdparm -t /dev/sda (unencrypted data): 62 MB/s (both systems)

hdparm -t /dev/dm-0 (encrypted data, LUKS AES):

    salvator-xs (CCREE): 15 MB/s
    salvator-xs (SW):    62 MB/s
    koelsch (SW):        47 MB/s

I'm a bit disappointment by the results when using crypto acceleration.
Apparently the in-kernel optimized arm64 implementation can decrypt at
raw read speed, while CCREE can't keep up.

Is this expected, and in line with your experiences?
Thanks!

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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