about optimizing

[lhffan]

Trouble Shooting / FAQ

• Check, if your servers and sirq-hrtimer processes really have the right scheduling by running chrt -p <pid>
  

^ from the linux kernel optimizing wiki. What scheduling shuld my servers and and the sirq-hrtimer have?


ATM: my servers have a sheduling of 98-99 something and the sirq-hrtimer is low.. think it is 2

[Peter_Pan123]

it think it should have 50-99.

[BehaartesEtwas]

especially it should be on SCHED_FIFO, that can be viewed with:
chrt -p <pid-of-the-process>

the priority should be at least 50. the absolute height does not really matter, it only needs to be higher as all other processes with SCHED_FIFO or SCHED_RR. sirq-hrtimer should be also higher than the servers.