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DB Latency Using DRAM + PMem in App Direct & Memory Modes

How does the latency of DDR4 DRAM compare to Intel Optane Persistent Memory when used in both App Direct and Memory Modes for In-Memory database access? This talk is about the latency benchmarks that I performed by adding gettimeofday() calls around critical DB kernel operations. This talk covers the technology, cache hit ratios, lots of histograms and lessons learned.

20 Minutes
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Doug Hood

Doug Hood, Consulting Member of Technical Staff at Oracle

Obsessed with Database performance and availability. Developer and product manager for Oracle TimesTen In-Memory Database.

P99 CONF OCT. 6-7, 2021

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