KLklaussilveira·Sep 14, 2025Submission
Quill: Asynchronous Low Latency C++ Logging Library
4 points · Open discussionodygrd
quill
C++2020–2025
odygrd / quill
quill
Ultra-low-latency asynchronous C++17 logging and metrics library for performance-critical applications
2Distinct people
7Mentions
0Explicit recommenders
3.1KGitHub stars
What to know before exploring
What it is
Ultra-low-latency asynchronous C++17 logging and metrics library for performance-critical applications
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year7 dated mentions
Observed mentions: 2020-03-02 01:38:11 UTC to 2025-09-14 15:56:52 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 3 | 3 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 3 | 1 | 2 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
7 sourcesspdlog is designed as a general purpose logging library and it can’t beat low latency loggers. It doesn’t scale for multiple threads because it’s async mode is using a mutex and a cv to notify the background thread.
You can find some logging libraries benchmarks here
https://github.com/odygrd/quill?tab=readme-ov-file#-performa...
In Nanolog supports logging with 7 ns median latency7. https://github.com/odygrd/quill
More modern than nanolog and also type safe supporting any type
In Nanolog supports logging with 7 ns median latencyQuill Low Latency Logging Library C++17
1 points · Open discussionQuill – C++14 Low Latency Logging Library – v1.4.0 released
5 points · Open discussionQuill – Asynchronous Low Latency Logging Library (C++14)
1 points · Open discussionQuill – An asynchronous low latency logging library (C++14)
After having written an asynchronous logging library from scratch at least four times, I am happy to share my project with the community.
The main motivation behind the project was that I wanted to achieve as low latency as possible on each caller thread. At the same time I wanted a type safe API and to be able to watch the log file in real time. Non of the existing open source logging libraries seemed to achieve that.
The project can be found on github
https://github.com/odygrd/quill
The current version requires at least C++14. If people like it and use it, I plan to create a C++20 fork in the future without any third-party dependencies and support for modules.
I am planning to actively maintain it. Any comments on code / API usage or feature requests are all welcome.
Looking forward to your questions, suggestions, or thoughts. Thank you
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