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October 4-6 in Berlin, Germany
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Tuesday, October 4 • 14:30 - 15:20
PM Infrastructure in the Linux Kernel - Current Status and Future - Rafael J. Wysocki, Intel OTC

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Multiple subsystems in the Linux kernel are concerned with various aspects of energy efficiency. Some of them act on the system as a whole while the others focus on individual CPUs or IO devices. The majority of them have been developed in isolation and they work reasonably well individually, but that is often insufficient to address problems related to contemporary trends in hardware design and growing user expectations. Thus they have to be made work more closely with one another and with core kernel code like the CPU scheduler. Efforts to make that happen are under way and I will describe them. However, in the meantime the existing Linux PM infrastructure has to respond to the users' needs, so I will discuss its current status, the most important problems it is facing and some possible ways to address them.

avatar for Rafael J. Wysocki

Rafael J. Wysocki

Software Engineer, Intel OTC
Rafael maintains the Linux kernel's core ACPI and power management code, including the core infrastructure for IO device PM, CPU PM and system suspend/hibernation. He works at Intel Open Source Technology Center as a Software Engineer focusing on the mainline Linux kernel. Rafael has been actively contributing to Linux since 2005, in particular to the kernel's power management subsystems (system suspend/hibernation, device runtime PM framework... Read More →

Tuesday October 4, 2016 14:30 - 15:20
Charlottenburg III