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https://github.com/trungams/mqtt-test
some simple mqtt client/server code
https://github.com/trungams/mqtt-test
Last synced: about 1 month ago
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some simple mqtt client/server code
- Host: GitHub
- URL: https://github.com/trungams/mqtt-test
- Owner: trungams
- Created: 2019-06-27T18:10:18.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2023-03-01T12:11:03.000Z (almost 2 years ago)
- Last Synced: 2023-03-08T18:42:52.190Z (almost 2 years ago)
- Language: C
- Size: 43 KB
- Stars: 1
- Watchers: 1
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
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README
# mqtt-test
All the tests mentioned below were run on my laptop with these specs:
```
Model: Thinkpad T480
OS: Ubuntu 18.04 TLS x84_64
Kernel: 4.18.0-24-generic
CPU: Intel i7-8550 (8) @ 4.000 GHz
GPU: Intel UHD Graphics 620
Memory: 6010 MiB / 15803 MiB
```
For each model, I ran the client-server program at least once, each time with 100,000 iterations (100,000 round-trips)
## MQTT test
### QoS 0
#### C client to C server
```
Total time elapsed: 0.808770998 seconds
Average time is 0.000008087 seconds(s) for 100000 iterations
Average round-trip per second: 123655 (rt/s)
```
#### C client to Js server
```
Total time elapsed: 4.153777612 seconds
Average time is 0.000041537 seconds(s) for 100000 iterations
Average round-trip per second: 24074 (rt/s)
```
#### Js client to C server
```
Total time elapsed: 111.860557521 seconds
Average time is 0.001118605 second(s) for 100000 iterations
Average round-trip per second: 893 (rt/s)
```
#### Js client to Js server
```
Total time elapsed: 124.950524490 seconds
Average time is 0.001249505 second(s) for 100000 iterations
Average round-trip per second: 800 (rt/s)
```
### QoS 1
#### C client to C server
```
Total time elapsed: 1.771083202 seconds
Average time is 0.000017710 seconds(s) for 100000 iterations
Average round-trip per second: 56465 (rt/s)
```
#### C client to Js server
```
Total time elapsed: 15.469506514 seconds
Average time is 0.000154695 seconds(s) for 100000 iterations
Average round-trip per second: 6464 (rt/s)
```
#### Js client to C server
```
Total time elapsed: 109.199560530 seconds
Average time is 0.001091853 second(s) for 100013 iterations
Average round-trip per second: 915 (rt/s)
```
#### Js client to Js server
Since the call to `process.hrtime()` is more expensive in Javascript, it's better to take the elapsed time between the first publication and the last message reception.
```
Average round trips per second: 826 (rt/s)
```
### QoS 2
#### C client to C server
```
Total time elapsed: 4.565175539 seconds
Average time is 0.000045651 seconds(s) for 100000 iterations
Average round-trip per second: 21905 (rt/s)
```
#### C client to Js server
```
Total time elapsed: 29.380158689 seconds
Average time is 0.000294042 seconds(s) for 99918 iterations
Average round-trip per second: 3400 (rt/s)
```
#### Js client to C server
```
Total time elapsed: 109.303964627 seconds
Average time is 0.001092679 second(s) for 100033 iterations
Average round-trip per second: 915 (rt/s)
```
#### Js client to Js server
```
Total time elapsed: 118.117489553 seconds
Average time is 0.001181092 second(s) for 100007 iterations
Average round-trip per second: 846 (rt/s)
```
## TCP test (for reference)
`TCP_NODELAY` were enabled so every message was put in a separate TCP packet. Below is the result of a single test run with 100,000 round trips.
#### C client to C server
```
Socket successfully created
Total time elapsed: 0.680732861 seconds
Average time is 0.000006807 seconds(s) for 100000 iterations
Average round-trip per second: 146907 (rt/s)
```
#### C client to Js server
```
Total time elapsed: 0.730146669 seconds
Average time is 0.000007301 seconds(s) for 100000 iterations
Average round-trip per second: 136967 (rt/s)
```
#### Js client to C server
```
Total time elapsed: 1.649006811 seconds
Average time is 0.000016490 second(s) for 100000 iterations
Average round-trip per second: 60642 (rt/s)
```
#### Js client to Js server
```
Total time elapsed: 2.302443240 seconds
Average time is 0.000023024 second(s) for 100000 iterations
Average round-trip per second: 43432 (rt/s)
```
## UDP test (for reference)
Below is the result of a single test run with 100,000 round trips.
#### C client to C server
```
Socket successfully created
Total time elapsed: 0.579993131 seconds
Average time is 0.000005799 seconds(s) for 100000 iterations
Average round-trip per second: 172443 (rt/s)
```
#### C client to Js server
```
Total time elapsed: 0.618996732 seconds
Average time is 0.000006189 seconds(s) for 100000 iterations
Average round-trip per second: 161576 (rt/s)
```
#### Js client to C server
```
Total time elapsed: 1.687840348 seconds
Average time is 0.000016878 second(s) for 100000 iterations
Average round-trip per second: 59248 (rt/s)
```
#### Js client to Js server
```
Total time elapsed: 2.775160422 seconds
Average time is 0.000027751 second(s) for 100000 iterations
Average round-trip per second: 36034 (rt/s)
```