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Monday, October 26 • 4:20pm - 5:10pm
Monitoring and Controlling Cache Allocation for Quality of Service Guarentees in Linux - H. Peter Anvin, Intel

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With simultaneous threads competing for processor shared resources like cache, it could result in cache contention leading to negative impact on key Quality of Service guarantees. In this talk, Peter will discuss using cache monitoring and allocation support in Linux kernel based on perf and cgroup, which provides a lightweight, powerful tool to address such cache QOS issues by providing reasonably accurate ways to monitor and allocate cache. Vikas will discuss challenges faced to using the feature in cloud, containers context and clients. The talk will discuss enterprise benchmark data focussing on cache contention issues, the measured improvements using the feature, the challenges involved in Kernel to overcome limited hardware resources,allocating cache resource per thread,per socket,issue of segregating instruction and data in allocations and issues in context switching.


Monday October 26, 2015 4:20pm - 5:10pm
Park Ballroom 1

Attendees (3)