Ran the tests against -updates and -proposed on a Pi 4, Pi 3B+, and Pi Zero 2 with the following results:
= Raspberry Pi 4 = length | before (MiB/s) | after (MiB/s) | delta ----------|----------------|----------------|---------- 32768 | 83.58 | 83.03 | -0.66% 65536 | 156.08 | 155.69 | -0.25% 131072 | 292.88 | 291.93 | -0.33% 262144 | 543.00 | 550.95 | 1.47% 524288 | 596.54 | 612.14 | 2.62% 1048576 | 640.72 | 643.76 | 0.47% = Raspberry Pi 3B+ = length | before (MiB/s) | after (MiB/s) | delta ----------|----------------|----------------|---------- 32768 | 55.55 | 55.38 | -0.31% 65536 | 98.39 | 98.36 | -0.03% 131072 | 173.72 | 169.80 | -2.26% 262144 | 165.05 | 161.24 | -2.31% 524288 | 146.80 | 147.16 | 0.25% 1048576 | 221.23 | 221.32 | 0.04% = Raspberry Pi Zero 2 = length | before (MiB/s) | after (MiB/s) | delta ----------|----------------|----------------|---------- 32768 | 39.09 | 39.32 | 0.58% 65536 | 70.09 | 70.33 | 0.34% 131072 | 125.40 | 122.88 | -2.01% 262144 | 133.79 | 133.76 | -0.02% 524288 | 134.59 | 133.84 | -0.56% 1048576 | 203.99 | 203.89 | -0.04% Looking much better than before; some mild improvement (and not too much cost) on the Pi 4 (the only platform where arm64 typically makes sense in the Pi series), and only minor degradation in the rest. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1951032 Title: AArch64: Backport memcpy improvements To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1951032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs