Smooth running

Waiting on dCache 12.2.4 which should include accepted last pull request
  12.2.3 was still missing sending packet at the start of the flow to identify flow/activity type

Effect of vulnerability mitigations on hepscore 
  Had measured about 2% on AMD 9354; so not worth worrying about
  Do we need to ponder what would we do if it was 10,20,30% ?
  Quick scan of CPU generations purchased in last 10 years
  About 2% on 4x AMD CPUs and about 1% or less on 4x Intel CPUs