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Top 4 C++ Performance Monitoring Projects
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Project mention: Apple's new Processor Trace instrument is incredible | news.ycombinator.com | 2025-08-16
Intel has a Performance Monitoring Unit on its core that has significant overlap.
Forgetting this tool-space, but at least some of these tools can make use of that hardware:
https://github.com/intel/pcm https://github.com/andikleen/pmu-tools
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perf-cpp
Lightweight recording and sampling of performance counters for specific code segments directly from your C++ application.
Profiling tools play a crucial role in identifying bottlenecks and aiding developers in optimizing their code. Yet, the broad granularity often means that key code segments tracked with perf stat can be obscured by extraneous data. Libraries like PAPI, PerfEvent, and perf-cpp offer a solution by allowing direct control over hardware performance counters from within the application itself. By leveraging the perf subsystem (more precisely the perf_event_open system call), these tools enable precise measurements of only the code segments that are truly relevant.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C++ Performance Monitoring discussion
C++ Performance Monitoring related posts
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Apple's new Processor Trace instrument is incredible
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Zen 5's Leaked Slides
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How close are GPUs to utilizing PCIE gen 4?
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PCIe Bus limits, triple display 2020 MBP 13
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What is missing for Rust > C ?
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diminishing returns at high core allocations
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Does ram speed matter for blender?
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A note from our sponsor - Sevalla
sevalla.com | 1 Sep 2025
Index
What are some of the best open-source Performance Monitoring projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | pcm | 3,086 |
| 2 | omnitrace | 322 |
| 3 | perf-cpp | 136 |
| 4 | tuned-switcher | 21 |
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