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LH-NUMAs are essentially clusters of NUMA nodes with a globally shared memory abstraction, either in hardware or in software. This Abstract architecture just like expensive mainframe, while keep the price low as commercial clusters of servers. It is a prospective optional major architecture for cloud computing in today's era of big data. This article studies the special needs for OS requested by LH-NUMA...
Sustaining the memory locality is critical for obtaining high performance in NUMA system. But how to identify a locality leakage problem and how to measure the leakage is still open issue. This paper provides an algorithm to quantitatively measure the locality leakage based on the memory trace produced by IBS (Instruction-Based-Sampling). A """"perfect matrix""""...
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