Lightning fast and simple async runtime.
This is intended to be an efficient async runtime with readable code and only a small amount of unsafe. It does depend on some libraries with lots of unsafe and unstable features. But the concepts of those libraries are abstracted away from the concept of the runtime.
This requires nightly APIs, is not well tested, and not recommended for production use. It is not meant to replace tokio. The main purpose is to have similar performance characteristics to tokio with a much simpler code base for learning purposes. It is not ensured to be satisfactory for soft real time systems.
Using oha to load test a demo HTTP app with both tokio and arc-discharge as the runtimes we get these results
Requests/sec: 141882.2455
Summary:
Success rate: 100.00%
Total: 70.4810 secs
Slowest: 0.0160 secs
Fastest: 0.0000 secs
Average: 0.0009 secs
Requests/sec: 141882.2455
Total data: 257.49 MiB
Size/request: 27 B
Size/sec: 3.65 MiB
Response time histogram:
0.000 [1] |
0.002 [9929609] |■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
0.003 [68408] |
0.005 [1192] |
0.006 [225] |
0.008 [44] |
0.010 [44] |
0.011 [228] |
0.013 [211] |
0.014 [37] |
0.016 [1] |
Response time distribution:
10.00% in 0.0006 secs
25.00% in 0.0008 secs
50.00% in 0.0009 secs
75.00% in 0.0010 secs
90.00% in 0.0012 secs
95.00% in 0.0013 secs
99.00% in 0.0016 secs
99.90% in 0.0020 secs
99.99% in 0.0043 secs
Details (average, fastest, slowest):
DNS+dialup: 0.0034 secs, 0.0024 secs, 0.0039 secs
DNS-lookup: 0.0000 secs, 0.0000 secs, 0.0003 secs
Status code distribution:
[200] 10000000 responses
Requests/sec: 147177.0598
Summary:
Success rate: 100.00%
Total: 67.9454 secs
Slowest: 0.0172 secs
Fastest: 0.0000 secs
Average: 0.0009 secs
Requests/sec: 147177.0598
Total data: 257.49 MiB
Size/request: 27 B
Size/sec: 3.79 MiB
Response time histogram:
0.000 [1] |
0.002 [9900451] |■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
0.003 [98033] |
0.005 [772] |
0.007 [321] |
0.009 [29] |
0.010 [49] |
0.012 [16] |
0.014 [96] |
0.015 [94] |
0.017 [138] |
Response time distribution:
10.00% in 0.0006 secs
25.00% in 0.0007 secs
50.00% in 0.0008 secs
75.00% in 0.0010 secs
90.00% in 0.0012 secs
95.00% in 0.0014 secs
99.00% in 0.0017 secs
99.90% in 0.0023 secs
99.99% in 0.0044 secs
Details (average, fastest, slowest):
DNS+dialup: 0.0031 secs, 0.0022 secs, 0.0035 secs
DNS-lookup: 0.0000 secs, 0.0000 secs, 0.0003 secs
Status code distribution:
[200] 10000000 responses
arc-discharge has a 3.8% throughput advantage
Using tokei, we measure the lines of code of each project.
Using ripgrep, we search for uses of unsafe inside the source and vendored dependencies (excluding windows-api/libc and dev dependencies)
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
Rust 330 51477 39325 3372 8780
|- Markdown 265 33613 963 24651 7999
(Total) 85090 40288 28023 16779
===============================================================================
Total 330 51477 39325 3372 8780
===============================================================================
# unsafe
8340 matches
8214 matched lines
860 files contained matches
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
Rust 17 2921 2235 172 514
|- Markdown 15 1633 9 1234 390
(Total) 4554 2244 1406 904
===============================================================================
Total 17 2921 2235 172 514
===============================================================================
# unsafe
1023 matches
970 matched lines
147 files contained matches
arc-discharge has only 5% of the code that tokio has, and 1/8th of the total unsafe code.