Timechart Tool to visualize total system behavior during a workload Stat Run a command and gather performance counter statistics Script Read perf.data (created by perf record) and display trace output Sched Tool to trace/measure scheduler properties (latencies) Report Read perf.data (created by perf record) and display the profile Record Run a command and record its profile into perf.data Kmem Tool to trace/measure kernel memory(slab) properties Inject Filter to augment the events stream with additional information The most commonly used perf commands are:Īnnotate Read perf.data (created by perf record) and display annotated codeĪrchive Create archive with object files with build-ids found in perf.data fileīench General framework for benchmark suitesīuildid-list List the buildids in a perf.data fileĭiff Read two perf.data files and display the differential profileĮvlist List the event names in a perf.data file Using _COARSE POSIX Clocks for Application Timestamping Setting Real-time Scheduler PrioritiesĤ.7. Using sched_yield and Other Synchronization MechanismsĤ.5. Signal Processing in Real-time ApplicationsĤ.2. Application Tuning and Deployment"Ĭollapse section "4. Isolating CPUs Using tuned-profiles-realtimeĮxpand section "4. Using sched_nr_migrate to Limit SCHED_OTHER Task Migration.ģ.13. Using the ftrace Utility for Tracing Latenciesģ.11. RoCEE and High Performance Networkingģ.7. TSC Timer Synchronization on Opteron CPUsģ.5. Using kdump and kexec with the Red Hat Enterprise Linux for Real Time Kernelģ.3. Configuring the CPU usage of a serviceģ.2. Changing the priority of service during boot processģ.1.2. Setting Scheduler Priorities"Ĭollapse section "3.1. Realtime-Specific Tuning"Įxpand section "3.1. Realtime-Specific Tuning"Ĭollapse section "3. Using Hardware Clocks for System TimestampingĮxpand section "3. General System Tuning"Ĭollapse section "2. Testing the System Real-time Performance under LoadĮxpand section "2. Running Latency Tests and Interpreting Their Results"ġ.1.2. Running Latency Tests and Interpreting Their Results"Ĭollapse section "1.1. Running Latency Tests and Interpreting Their ResultsĮxpand section "1.1. Before You Start Tuning Your Red Hat Enterprise Linux for Real Time System"ġ.1. Before You Start Tuning Your Red Hat Enterprise Linux for Real Time System"Ĭollapse section "1. Before You Start Tuning Your Red Hat Enterprise Linux for Real Time SystemĮxpand section "1.
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