Ubuntu
systemd package

  1. Bug #1584124
  2. Comment #3

Comment 3 for bug 1584124

Revision history for this message
Colin Ian King (colin-king) wrote :

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.