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Home→Tags likwid-perfctr

Tag Archives: likwid-perfctr

Top down performance counter analysis (part 1) – likwid & perf

Performance analysis, tools and experiments Posted on 2018-04-14 by mev2018-04-16

In this posting I summarize top-down performance counter analysis to evaluate workloads and show how this can be measured on Haswell using likwid-perfctr and perf. In part 2 to follow, I’ll describe how top down metrics have been added to … Continue reading →

Posted in experiments | Tagged analysis technique, likwid-perfctr, perf, performance counters, top-down | 1 Reply

likwid-perfctr run for phoronix cpu benchmarks

Performance analysis, tools and experiments Posted on 2018-03-22 by mev2018-03-22

Kicked off a run with the Phoronix CPU suite using likwid-perfctr. Benchmarks that were single-threaded were pinned to a single CPU, others to all CPUs. #!/bin/bash likwid-perfctr -a | tail +3 | awk ‘{ print $1 }’ | while read … Continue reading →

Posted in experiments | Tagged likwid-perfctr, phoronix, phoronix cpu suite | Leave a reply

Experiment – virtualization and performance counters

Performance analysis, tools and experiments Posted on 2018-03-14 by mev2018-03-14

During a recent look at likwid-perfctr the performance counters didn’t look right in several aspects: CPU core to CPU core differences in what should be a symmetric benchmark and where wspy results showed processes balanced run to run differences with … Continue reading →

Posted in experiments | Tagged likwid-perfctr, performance counters, virtualization | Leave a reply

likwid-perfctr

Performance analysis, tools and experiments Posted on 2018-03-13 by mev2018-06-26

The likwid performance monitoring and benchmarking suite has multiple tools including: likwid-topology – print thread, cache and NUMA topology likwid-pin – pin threaded applications to processors likwid-bench – micro-benchmarking application likwid-agent – monitoring agent for hardware performance counters As of … Continue reading →

Posted in tools | Tagged c-ray, likwid, likwid-perfctr, performance counters, phoronix | 1 Reply

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/proc/stat analysis technique c-ray ftrace geekbench geekbench-description gromacs hyperthreading ipc kernelshark likwid likwid-perfctr likwid-topology memory metrics on_core on_cpu OpenFOAM parboil perf performance counters periodic sampling phoronix phoronix benchmark article phoronix cpu suite pmu_tools process tree progress report ptrace rusage Ryzen spectre system hang top-down trace-cmd uprof virtualization wspy

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