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Tuesday, October 6 • 14:00 - 14:50
Monitoring and Controlling Cache Allocation For Quality of Service Guarantees in Linux - Matt Fleming, 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, Vikas 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.


Matt Fleming

Matt Fleming is a Senior Linux kernel engineer at Intel’s Open Source Technology Center, and leads the Linux Core CPU Enabling team. Matt has made numerous contributions to the Linux kernel and has filled various roles in Open Source projects, from individual contributor to project lead. He is currently the Linux kernel EFI maintainer.

Tuesday October 6, 2015 14:00 - 14:50
Wicklow Meeting 1