June 25Jun 25 Just got a ODroid M2 to play with an during initial benchmarking, noticed some weird results. I don't see an M2 specific forum, so @Werner, please move as necessary! Anyway, always interested in crypto throughput, and ARM64 crypto extensions have always put up some good results. So, a little weird when I saw that AES XTS performance seems decent, but CBC seems awful? user@odroidm2:~$ /sbin/cryptsetup benchmark aes-cbc 128b 178.5 MiB/s 162.7 MiB/s aes-cbc 256b 135.0 MiB/s 211.3 MiB/s aes-xts 256b 1399.5 MiB/s 1407.2 MiB/s aes-xts 512b 1186.7 MiB/s 1198.7 MiB/s Checking /proc/crypto seems to indicate that rk_crypto2 is being used, so on a whim, I tried doing this: user@odroidm2:~$ sudo rmmod rk_crypto2 [sudo] password for user: user@odroidm2:~$ /sbin/cryptsetup benchmark aes-cbc 128b 880.4 MiB/s 1722.3 MiB/s aes-cbc 256b 755.8 MiB/s 1247.9 MiB/s aes-xts 256b 1225.2 MiB/s 1422.5 MiB/s aes-xts 512b 1088.9 MiB/s 1123.7 MiB/s Huh. XTS speed is about the same, but CBC is an order of magnitude faster? Might not even be worth using it? Anyway, before I go digging, just curious if anyone's seen this or can reproduce on a Rockchip other than an RK3588S2? Logs from Armbian 26.2.1 (noble/current) -> https://paste.armbian.com/mudojesajo Edited June 25Jun 25 by tparys Added logs
June 25Jun 25 Solution Need to sync tags and boards at some point again...or hopefully this will work automatically at some point. Anyway, try https://github.com/armbian/build/pull/9796
June 26Jun 26 Let me know. I had hopes the commiter would provide upstreaming effort proof but nothing there yet.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.