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Tuesday, August 18 • 9:30am - 10:00am
Improve ARM Guest Performance with 64KB Pages - Julien Grall, Citrix

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The ARMv8 architecture adds support of 64KB granularity allowing only two levels of page tables and faster TLB look-up. While ARMv8 still support 4KB granularity, some major distributions will only ship their kernel with 64KB pages.

During this session, we will explain the meaning of 64KB granularity from the hardware and software perspective. We will also explain the impact to the Xen hypercall interface and a first approach to allow a 64KB pages kernel running on the current interface.

Last but not least, we will discuss changes to take advantage of 64KB granularity in PV drivers interfaces and gain better performance.
Speakers
avatar for Julien Grall

Julien Grall

Citrix
Julien Grall is a Software Engineer at Citrix, working on the Open Source Xen Platform team. He has been working on Xen since 2012, focusing at the beginning on x86 port, then on ARM port. Before joining Citrix, he was a student on Embedded System at Epita.

Tuesday August 18, 2015 9:30am - 10:00am PDT
Ravenna C Sheraton Seattle, 1400 6th Ave., Seattle, WA 98101
  Session