Dan Luu • 12/18/2021

The container throttling problem

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This article details the 'container throttling problem' at Twitter, where CPU-bound services fail at low utilization due to Linux CFS scheduler behavior. It explains the root cause, presents case studies showing 1.5x-2x capacity gains via config tuning, and explores scalable solutions to recapture significant annual cost savings across the platform.

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#performance tuning #linux scheduler #cfs bandwidth control
The container throttling problem

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