STL
tracy
Our great sponsors
STL | tracy | |
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154 | 57 | |
9,698 | 7,762 | |
1.3% | - | |
9.6 | 9.6 | |
5 days ago | 8 days ago | |
C++ | C++ | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
STL
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Show HN: Logfmtxx – Header only C++23 structured logging library using logfmt
Again, they are barely functional.
MSVC chokes on many standard-defined constructs: https://github.com/microsoft/STL/issues/1694
clang does not claim to be "mostly usable" at all - most papers are not implemented: https://clang.llvm.org/cxx_status.html#cxx20
And gcc will only start ot be usable with CMake when version 14 is released - that has not happened yet.
And, as I mentioned before, IDE support is either buggy (Visual Studio) or non-existing (any other IDE/OS). So you're off to writing in a text editor and hoping your compiler works to a somewhat usable degree. Yes, at some point people should start using modules, I agree, but to advise library maintainers to ship modularized code... the tooling just isn't there yet.
I mean, the GitHub issue is Microsoft trying to ship their standard library modularized, they employ some of the most capable folks on the planet and pay them big money to get that done, while metaphorically sitting next to the Microsoft compiler devs, and they barely, barely get it done (with bugs, as they themselves mention). This is too much for most other library maintainers.
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Cpp2 and cppfront – An experimental 'C++ syntax 2' and its first compiler
Notice that there are in practice three distinct implementations of the C++ standard library. They're all awful to read though, here's Microsoft's std::vector https://github.com/microsoft/STL/blob/main/stl/inc/vector
However you're being slightly unfair because Rust's Vec is just defined (opaquely) as a RawVec plus a length value, so let's link RawVec, https://doc.rust-lang.org/src/alloc/raw_vec.rs.html -- RawVec is the part responsible for the messy problem of how to actually implement the growable array type.
Still, the existence of three C++ libraries with slightly different (or sometimes hugely different) quality of implementation means good C++ code can't depend on much beyond what the ISO document promises, and yet it must guard against the nonsense inflicted by all three and by lacks of the larger language. In particular everything must use the reserved prefix so that it's not smashed inadvertently by a macro, and lots of weird C++ idioms that preserve performance by sacrificing clarity of implementation are needed, even where you'd ordinarily sacrifice to get the development throughput win of everybody know what's going on. For example you'll see a lot of "pair" types bought into existence which are there to squirrel away a ZST that in C++ can't exist, using the Empty Base Optimisation. In Rust the language has ZSTs so they can just write what they meant.
- C++ Specification vs Implementation
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C++23: Removing garbage collection support
Here is Microsoft's implementation of map in the standard library. I think of myself as a competent programmer / computer scientist. I couldn't write this: https://github.com/microsoft/STL/blob/f392449fb72d1a387ac502...
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std::condition_variable wait for (very) long time
Be careful on Windows, the MSVC STL implementation uses the system time, so it can be badly impacted by clock adjustments: https://github.com/microsoft/STL/issues/718
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Compiler explorer: can you use C++23 std lib modules with MSVC already?
Can you provide a link? If it affects import std;, I'd like to add it to my tracking issue.
- Learn to write production quality STL like classes
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MSVC C++23 Update
Do you have a list of the bugs you've filed and their current status, like the one I have for the STL? I saw you mentioned 3 bugs 7 months ago, 2 of which were fixed in 17.6 and the third of which was a duplicate of an active bug ("deducing this" is known to not yet work with modules, which is why we don't define the feature-test macro to claim full support).
- C++/CLI wrap of a C++ class that includes <future> in public header
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Has Boost lost its charm?
Yep. And look at our implementation's name: https://github.com/microsoft/STL
tracy
- Tracy: Real-time nanosecond resolution frame profiler
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Google/orbit – C/C++ Performance Profiler
i don't really think there is _anything_ that comes even close to tracy https://github.com/wolfpld/tracy.
on top of this, given google's penchant for dumping projects aka abandonware, this would be an easy pass.
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Immediate Mode GUI Programming
The RemedyBG debugger (https://remedybg.handmade.network/) and the Tracy profiler (https://github.com/wolfpld/tracy) both use Dear ImGui and so far I've only read high praise from people who used those tools compared to the 'established' alternatives.
For tools like this, programmers are also just "normal users", and from the developer side, I'm sure they evaluated various alternatives with all their pros and cons before settling for Dear ImGui.
- Tracy Profiler
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Tuning Linux for Performance
Not the person you asked, but generally you might want to look at "frame-based" profilers. These are typically used in video games, but the concept is general, and can apply to other applications. The "frame" could also be something like a request or transaction being processed. I like Tracy[1], myself.
Another latency metric that you'll see, often w/respect to web apps and microservices is "P99" and similar. This is the amount of time in which 99% of requests get their response. For a higher percentile, you get a better idea of worst-case performance.
[1] https://github.com/wolfpld/tracy
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What is your favourite profiling tool for C++?
I've not actually used Superluminal, but I use Tracy for similar reasons. It's free though (and, importantly, open source).
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My first game engine
For profiling, you can check tracy.
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I got my procedural city engine / game (built from scratch in c++) running on the steam deck - does it look too garish?
You could try Tracy
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Sharing Saturday #462
There is no such thing as overengineering in fun projects, so I've also adopted Tracy as profiling solution. Works quite nice and gonna save me plenty of times in the future debugging performance spikes on badly optimized math heavy operations.
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Debugging and profiling embedded applications.
I know about tools such as tracing, jaeger or tracy. While having a complete tracing could be a potential solution, these tools don't work with no_std.
What are some alternatives?
EA Standard Template Library - EASTL stands for Electronic Arts Standard Template Library. It is an extensive and robust implementation that has an emphasis on high performance.
optick - C++ Profiler For Games
asio - Boost.org asio module
orbit - C/C++ Performance Profiler
robin-hood-hashing - Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20
palanteer - Visual Python and C++ nanosecond profiler, logger, tests enabler
gcc
pprof - pprof is a tool for visualization and analysis of profiling data
llvm-project - The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
parallel-hashmap - A family of header-only, very fast and memory-friendly hashmap and btree containers.
ziglings - Learn the Zig programming language by fixing tiny broken programs.
gperftools - Main gperftools repository