Validated glibc from focal-proposed according to test case from
description:
halves@glibc-zen:~$ ./test_memcpy64 32
32 MB = 1.222535 ms
-Compare match (should be zero): 0
halves@glibc-zen:~$ dpkg -l | grep libc-bin
ii libc-bin 2.31-0ubuntu9.9 amd64
GNU C Library: Binaries
halves@glibc-zen:~$ grep -m1 "model name" /proc/cpuinfo
model name : AMD Ryzen 7 3700X 8-Core Processor
Also validated on an Intel system, and no performance regressions have been
observed:
halves@halves-focal-glibc-xeon:~$ ./test_memcpy64 32
32 MB = 2.174005 ms
-Compare match (should be zero): 0
halves@halves-focal-glibc-xeon:~$ grep -m1 "model name" /proc/cpuinfo
model name : Intel(R) Xeon(R) CPU E5-2683 v3 @ 2.00GHz
halves@halves-focal-glibc-xeon:~$ dpkg -l | grep libc-bin
ii libc-bin 2.31-0ubuntu9.9 amd64
GNU C Library: Binaries
** Tags removed: verification-needed verification-needed-focal
** Tags added: verification-done verification-done-focal
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1928508
Title:
Performance regression on memcpy() calls for AMD Zen
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1928508/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
