Some data to take into consideration. I've tested 4 difference configs (3 laptops, 1 server) of mixed Intel and AMD hardware, comparing the default powersave/ondemand [1] vs performance
[1] depends on CPU and if intel-pstate is supported For faster modern Intel CPUs where intel-pstate is supported, there is minimal difference. Otherwise, performance is a ~3% faster, and all the gains are in userspace. See attached spreadsheet. Tests data was gathered from the average of 25 and average of 50 boots per CPU scheduler setting. So that's a total of 600 boots in this dataset across a range of H/W, so I think this data is pretty reliable data. ** Attachment added: "boot-times-performance-vs-powersave-intel-pstate.ods" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584124/+attachment/4679093/+files/boot-times-performance-vs-powersave-intel-pstate.ods -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1584124 Title: revisit /etc/init.d/ondemand To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584124/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
