io_uring bare minimum echo server
- uses an event loop created with io_uring
- uses liburing git HEAD
- Linux 5.5 or higHer needed. (For IORING_OP_ACCEPT)
Build
make
Why fork a new repo
Because the original repo tries to improve performance by not doing the right thing
Benchmarks
- VMWare Ubuntu Focal Fossa 20.04 (development branch)
- Linux carter-virtual-machine 5.5.0-999-generic #202002070204 SMP Fri Feb 7 02:09:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
- 4 virtual cores
- Macbook pro i7 2.5GHz/16GB
- Compiler: clang version 9.0.1-8build1
- ./io_uring_echo_server 12345 ( for io_uring version )
- ./epoll_echo_server 12345 ( for epoll version )
with rust_echo_bench: https://github.com/haraldh/rust_echo_bench
unit: request/sec
command: cargo run --release -- -c 50
| USE_POLL | RECV_SEND | EV MODEL | operations | 1st | 2nd | 3rd | mid | rate |
|---|---|---|---|---|---|---|---|---|
| 1 | 0 | io_uring | POLL-READ_F-WRITE_F | 150637 | 149408 | 153421 | 150637 | 101.40% |
| 1 | 1 | io_uring | POLL-RECV-SEND | 158517 | 163899 | 156310 | 158517 | 106.70% |
| 0 | 0 | io_uring | READ_F-WRITE_F | 87740 | 83988 | 91266 | 87740 | 59.06% |
| 0 | 1 | io_uring | SEND-RECV | 88967 | 85187 | 80674 | 85187 | 57.34% |
| N/A | 0 | epoll | POLL-READ-WRITE | 152407 | 148379 | 150991 | 150991 | 101.64% |
| N/A | 1 | epoll | POLL-RECV-SEND | 148557 | 148124 | 148606 | 148557 | 100.00% |
| IO_LINK | 1 | io_uring | POLL-RECV-SEND | 105464 | 109249 | 106085 | 106085 | 71.41% |
| IO_LINK | 0 | io_uring | POLL-READ_F-WRITE_F | 108518 | 108715 | 105832 | 108518 | 73.05% |
command: cargo run --release -- -c 200
| USE_POLL | RECV_SEND | EV MODEL | operations | 1st | 2nd | 3rd | mid | rate |
|---|---|---|---|---|---|---|---|---|
| 1 | 0 | io_uring | POLL-READ_F-WRITE_F | 146183 | 143251 | 146514 | 146183 | 98.75% |
| 1 | 1 | io_uring | POLL-RECV-SEND | 150691 | 151855 | 147474 | 150691 | 101.79% |
| 0 | 0 | io_uring | READ_F-WRITE_F | 78388 | 76215 | 77005 | 77005 | 52.02% |
| 0 | 1 | io_uring | SEND-RECV | 76152 | 69351 | 76097 | 76097 | 51.40% |
| N/A | 0 | epoll | POLL-READ-WRITE | 148472 | 145701 | 147827 | 147827 | 99.86% |
| N/A | 1 | epoll | POLL-RECV-SEND | 155998 | 156516 | 155453 | 156516 | 100.00% |
command: cargo run --release -- -c 1
| USE_POLL | RECV_SEND | EV MODEL | operations | 1st | 2nd | 3rd | mid | rate |
|---|---|---|---|---|---|---|---|---|
| 1 | 0 | io_uring | POLL-READ_F-WRITE_F | 15623 | 17776 | 18675 | 17776 | 118.93% |
| 1 | 1 | io_uring | POLL-RECV-SEND | 19056 | 14811 | 14145 | 14811 | 99.10% |
| 0 | 0 | io_uring | READ_F-WRITE_F | 48117 | 37423 | 46210 | 46210 | 309.18% |
| 0 | 1 | io_uring | SEND-RECV | 22971 | 21146 | 20152 | 21146 | 141.48% |
| N/A | 0 | epoll | POLL-READ-WRITE | 16105 | 14227 | 15672 | 15672 | 104.86% |
| N/A | 1 | epoll | POLL-RECV-SEND | 18596 | 14076 | 14946 | 14946 | 100.00% |