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Making the wakeup latency historgram
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Classroom Contents
Finding Sources of Latency on Your Linux System
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- 1 Intro
- 2 What is Latency
- 3 Where does latency come from?
- 4 Latency from Hardware
- 5 The Hardware Latency Detector
- 6 Latency from the Kernel
- 7 Interrupts disabled!
- 8 Measuring latency from interrupts
- 9 Preemption disabled
- 10 Preemption and interrupt disabled latency tracers
- 11 Tracing Latency from Interrupts with PREEMPT_RT (5.4.14-rt7)
- 12 The Scheduling Latency Tracer
- 13 Issues with the Latency Tracers
- 14 Histogram Triggers and Synthetic Events!
- 15 Creating a synthetic event
- 16 Making their disabled historgram
- 17 Creating a wake up latency synthetic event
- 18 Making the wakeup latency historgram
- 19 Making the wake up latency historgram
