libreactorng
Engine · C · engine: io_uring
libreactorng — Fredrik Widlund's io_uring-native event framework, the successor to the long-running epoll-based libreactor. Built directly on Linux io_uring syscalls with zero third-party runtime deps. Minimal server dispatches /pipeline, /baseline11, /baseline2 via the built-in HTTP parser; one reactor process per logical CPU via SO_REUSEPORT.
Achievements
🥇 1 Gold · 🥈 1 Silver. Top three of a field, taken in this entry's own league: the family composite, the same composite among entries written in the same language, and each test profile it is scored on. Every field is the one the badges publish, so a medal and a badge always say the same thing. How medals are awarded.
| Medal | Award | Field | Rank |
|---|---|---|---|
| 🥇 Gold | Test profile | Efficiency · Latency-1M | 1 of 32 |
| 🥈 Silver | Within its language | C · HTTP/1.1 | 2 of 3 |
Composite rank
Each profile of a family is worth 100 to the entry that leads it, and the composite is the sum over the family, less 2.5% for each of routing, middleware, request and response the entry does not do for you - its completeness factor, which the WebSocket and gRPC families do not carry. The field is this entry's own league: engines and reverse proxies are scored apart from frameworks. How it works.
| Family | Rank | Composite |
|---|---|---|
| HTTP/1.1 | 10 of 34 | 3828 |
Every result
Alpha Round, 6 runs. Requests per second is the best of three; latency, CPU and memory come from that run.
| Category | Profile | Conns | Req/sec | Avg | p99 | CPU | Memory |
|---|---|---|---|---|---|---|---|
| Connection | Baseline | 4,096 | 4,377,377 | 935us | 1.26ms | 6168.4% | 105MiB |
| Connection | Pipelined | 4,096 | 43,424,448 | 1.51ms | 2.12ms | 6397.2% | 122MiB |
| Connection | Short-lived | 4,096 | 2,685,717 | 1.39ms | 2.18ms | 5448.2% | 175MiB |
| Efficiency | Latency-10K | 1,024 | 9,982 | 70.6us | 103.0us | 24.0% | 73MiB |
| Efficiency | Latency-1M | 1,024 | 998,522 | 92.5us | 171.0us | 2299.9% | 75MiB |
| Efficiency | Latency-500K/8 | 1,024 | 499,100 | 617.4us | 7486.0us | 824.6% | 31MiB |
Compared with
The C entries around libreactorng on the HTTP/1.1 composite, and the one leading them. The last column shows every profile side by side.
| Entry | Composite | vs libreactorng | |
|---|---|---|---|
| mongoose | 5940 | +55% | head to head |
| nginx | 4710 | +23% | head to head |
| h2o | 3936 | +3% | head to head |
| libioma | 3819 | -0% | head to head |
| Vinyl Cache | 831 | -78% | head to head |
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