On Sun, 28 Oct 2018, at 12:07, Per Dalgas Jakobsen wrote: > From shell running: while true; do date +%s.%N; sleep 1; done > > In all cases, the output content is as expected: regular increment of > the time displayed, however the time at which the lines are displayed is > not regular. How much variation? -- Jeremy Nicoll - my opinions are my own.