Built kernel with patches that fix CPPC issues, and re-run the test. == Enable CPPC control in firmware ==
CAVM_CN99xx# env set cppccontrol 1 == Bionic kernel with patches == ubuntu@starbuck:~$ uname -a Linux starbuck 4.15.0-38-generic #41~lp1796949+build.1 SMP Tue Oct 16 17:06:56 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux ubuntu@starbuck:~$ ls -lR /sys/devices/system/cpu/cpu1/acpi_cppc/ /sys/devices/system/cpu/cpu1/acpi_cppc/: total 0 -r--r--r-- 1 root root 4096 Oct 16 18:45 feedback_ctrs -r--r--r-- 1 root root 4096 Oct 16 18:45 highest_perf -r--r--r-- 1 root root 4096 Oct 16 18:45 lowest_nonlinear_perf -r--r--r-- 1 root root 4096 Oct 16 18:45 lowest_perf -r--r--r-- 1 root root 4096 Oct 16 18:45 nominal_perf -r--r--r-- 1 root root 4096 Oct 16 18:45 reference_perf -r--r--r-- 1 root root 4096 Oct 16 18:45 wraparound_time ubuntu@starbuck:~$ cat /sys/devices/system/cpu/cpu1/acpi_cppc/highest_perf 2500000 ubuntu@starbuck:~$ cat /sys/devices/system/cpu/cpu1/acpi_cppc/lowest_perf 1000000 ubuntu@starbuck:~$ cat /sys/devices/system/cpu/cpu1/acpi_cppc/feedback_ctrs ref:2240139584 del:2315092606 ubuntu@starbuck:~$ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1796949 Title: [Bionic] CPPC bug fixes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796949/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
