[tybit]

I realise that the Twitter is using Mesos, but for those of us on Kubernetes does guaranteed QoS solve this? https://kubernetes.io/docs/tasks/configure-pod-container/qua...

[bboreham]

If you also use the CPU Manager feature and request an integer number of cores, yes. Then for example if you request 3 cores your process will be pinned onto 3 specific cores and nothing else will be scheduled onto those cores, and CFS will not throttle your process.

https://kubernetes.io/docs/tasks/administer-cluster/cpu-mana...

[mac-chaffee]

QoS classes are only used "to make decisions about scheduling and evicting Pods." It still uses the Completely Fair Scheduler, which is where the problem came from (as far as I understand).

[KptMarchewa]

I think they are not using Mesos now.

https://dzone.com/articles/what-can-we-learn-from-twitters-m...