Bad Concurrency

Misadventures in Concurrent and Parallel programming, plus random comments on software performance and various OSS contributions.

Wednesday, 3 December 2014

The "Uncanny Valley" of L3 Cache Contention

While preparing for my talk at QCon SF 2014, I wanted to investigate a theory around how micro-benchmarks are not a useful reflection of how software may behave when run as part of a larger application.  Specifically due contention in the last-level cache (L3* in current Intel CPUs).

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Posted by Michael Barker at 01:13 15 comments:
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