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Monday, October 26 • 11:45am - 12:35pm
Fundamental Trends and Issues in Linux Memory Management - Christoph Lameter

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Over time some trends are visible that impact memory management in Linux: Larger memory sizes, an increase in the levels of processor caches with diverse characteristics, heterogeneous memory with yet another requirement on how to optimally use such memory. Then there are various forms of flash RAM and NVRAM that may be memory mapped or be accessed via non standard methods since the performance of the classic disk I/O paths of Linux are not sufficient. We need to be able to "move memory" between these various forms of memory that also may be at different distances from the processors and therefore subject to NUMA allocation strategies. Different page allocation sizes are required and this results in memory fragmentation that either impacts performance or causes the system to be unusable over time. In short memory management becomes increasingly complex and diverse.

avatar for Christoph Lameter

Christoph Lameter

Dr., Gentwo
Christoph Lameter is working as a lead in research and development for an algorithmic trading company in Chicago. and maintains the slab allocators and the per cpu subsystems. Over time he contributed to a number of Linux projects. As a kernel developer at SGI he helped pioneer the use of Linux for Supercomputing and developed the necessary kernel capabilities for HPC applications. Christoph has a Ph.D. with a focus on the Philosophy of Science.

Monday October 26, 2015 11:45am - 12:35pm
Park Ballroom 3

Attendees (5)