Ubuntu
glibc package

  1. Bug #1999551
  2. Comment #31

Comment 31 for bug 1999551

Revision history for this message
Julian Schroeder (jumaco) wrote : Re: glibc: backport AArch64 memcmp improvements

Hi Simon,
I looked at Wilco's commit b51eb35c572b015641f03e3682c303f7631279b7 again.
From what I can see the (aarch64) memcmp code is reorganized and uses Neon code for comparing > 64 bytes. Since Pi4 supports Neon, it should benefit from this.
Can you check if the Pi4 is using sysdeps/aarch64/memcmp.S code and not string/memcmp.c generic code?
Thanks,
Julian.