Linux IOCost Cgroup Controller and resctl-bench

Talk by Tejun Heo
www.socallinux...
The IOCost cgroup controller implements hierarchical weighted block IO distribution based on model-calculated cost of each IO. This can be used to isolate IOs among applications and containers running on the same system. This presentation takes a look at how the IOCost controller works, how comprehensive memory and IO isolation can be achieved with it, and how the model parameters can be benchmarked using resctl-bench and distributed for out-of-the-box configuration.