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about optimizing
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05-19-2009, 11:54 PM
(This post was last modified: 05-19-2009, 11:55 PM by 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
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it think it should have 50-99.
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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.
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