nanobench
coz
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nanobench | coz | |
---|---|---|
13 | 17 | |
1,283 | 3,803 | |
- | 2.6% | |
5.0 | 6.0 | |
7 months ago | 20 days ago | |
C++ | C | |
MIT License | GNU General Public License v3.0 or later |
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nanobench
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The issue of unit tests and performance measurements (Benchmark)
An alternative is tracking the number of instructions a test executes: https://github.com/martinus/nanobench
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how do you properly benchmark?
Nano bench is a great library with low overhead. https://github.com/martinus/nanobench
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Can you give an example of well-designed C++ code, and explain why you think it is so?
I like https://nanobench.ankerl.com/
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Best accurate way to measure/compare elapsed time in C++
Of course, the best way to benchmark is nanobench: https://nanobench.ankerl.com/
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The 23 year-old C++ developers with three job offers over $500k
I've created robin-hood-hashing and nanobench, and recently made some contributions to Bitcoin and doxygen
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I don’t know which container to use (and at this point I’m too afraid to ask)
Right. Regex runtime construction is known to be slow, so ideally the state machinery construction is built at compile time (boost.xpressive, ctre). Also, boost.regex is faster than most of the std implementations if compile time isn’t possible. And if that’s no good rewrite without regex. Since it sounds like it’s all encapsulated at least it would be easy to measure the options. These days I use this one to compare https://nanobench.ankerl.com/
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I'm writing a microbenchmarking library called "precision" without any macros. What do you guys think of the API?
You can check the API of nanobench which also doesn't use macros, as far as I have used it.
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C++20 std::format is 2x slower than std::fstream?
I've tried again with your latest changes and decided to use https://github.com/martinus/nanobench for a better benchmark and got the following output:
- Nanobench: Fast, Accurate, Single-Header Microbenchmarking Functionality For C++
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Benchmarking Code
Nanobench C++
coz
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Why would introducing a panic cause a 20% performance increase
Perhaps you're thinking of the coz profiler (https://github.com/plasma-umass/coz)?
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Best accurate way to measure/compare elapsed time in C++
https://github.com/plasma-umass/coz https://youtu.be/7g1Acy5eGbE
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Performance variation when moving functions between files
Could it be an issue of binary layout? Have a look at the coz profiler which has a rust port.
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What do you want out of a Rust profiler?
Idk if you have already heard about it, but causal profiling might be interesting. Basically, by artificially slowing down the rest of the program except for one function one can measure more accurately what kind of speedup the program would get if you speed up this function. There's a great talk somewhere on this github. Someone already made binds for this in rust. But I don't know how useful that really is, as I don't have much experience with profiling
- Profiling without the noise caused by memory layout variations
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I hate ASIO and I can't be alone.
It can be quite frustrating to write code using ASIO, but it is nothing compared to debugging code using it, which just seems impossible to do in any reasonable way. And the same goes for profiling (maybe coz could help with this, but I didn't know about it the last time I had to do profile an application using ASIO, so I'm not sure).
What are some alternatives?
Sampling Profiler for Python - Simple Python sampling profiler
benchmark - A microbenchmark support library
php-spx - A simple & straight-to-the-point PHP profiling extension with its built-in web UI
fast_io - C++20 Concepts IO library which is 10x faster than stdio and iostream
robin-hood-hashing - Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20
stabilizer - Stabilizer: Rigorous Performance Evaluation (llvm-12 fork)
curl4cpp - Single header cURL wrapper for C++ around libcURL
ut - C++20 μ(micro)/Unit Testing Framework
nng - nanomsg-next-generation -- light-weight brokerless messaging
zmqpp - 0mq 'highlevel' C++ bindings
MTuner - MTuner is a C/C++ memory profiler and memory leak finder for Windows, PlayStation 4 and 3, Android and other platforms
bench-rest - bench-rest - benchmark REST (HTTP/HTTPS) API's. node.js client module for easy load testing / benchmarking REST API's using a simple structure/DSL can create REST flows with setup and teardown and returns (measured) metrics.