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Tuesday, August 18 • 10:30am - 11:20am
An Introduction to Cache Quality of Service in Linux - Vikas Shivappa, Intel

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When simultaneous threads compete for processor shared resources like L3
cache it could result in inefficient space utilization if not properly
managed. In consolidated large scale data centers this affects the key
Quality of Service guarantees. This talk will review various benchmark
data that focus on some of the important performance issues related to
cache contention which until recently Linux kernel has tolerated. With
the Linux Kernel Cache QOS framework based on perf and cgroup, we now
have a lightweight, powerfull tool which gives capability to monitor
cache occupancy and make cache allocations for each thread. The talk
discusses the usage of the interface in webservers, datacenters,HPC, its
limitations and explore usage in virtualization and containers context.
This talk is aimed at anyone interested in monitoring or controlling
processor cache allocations.


Vikas Shivappa

Sr. Software Development Engineer, Intel
Senior software Development Engineer with primary focus on Kernel/drivers. Tasks include researching, developing optimized alternatives and algorithms or innovative products in OS Kernel,drivers and Virtualization products. The optimizations will involve power and performance optimizations... Read More →

Tuesday August 18, 2015 10:30am - 11:20am PDT

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