I tried kernel cmd line option isolcpus= then running the test on the isolated cpu. It is still faster in the terminal. I tried Ubuntu 18 with the same binary, can't repeat it. Only repeatable with Fedora 32 with kernel 5.7.7 and kernel 5.6.14... _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx