mirror of
https://github.com/42wim/matterbridge.git
synced 2024-12-20 07:52:01 -08:00
57 lines
3.5 KiB
Markdown
57 lines
3.5 KiB
Markdown
|
## Reference:
|
||
|
|
CBOR Encoding is described in [RFC7049](https://tools.ietf.org/html/rfc7049)
|
||
|
|
|
||
|
|
## Comparison of JSON vs CBOR
|
||
|
|
|
||
|
|
Two main areas of reduction are:
|
||
|
|
|
||
|
|
1. CPU usage to write a log msg
|
||
|
|
2. Size (in bytes) of log messages.
|
||
|
|
|
||
|
|
|
||
|
|
CPU Usage savings are below:
|
||
|
|
```
|
||
|
|
name JSON time/op CBOR time/op delta
|
||
|
|
Info-32 15.3ns ± 1% 11.7ns ± 3% -23.78% (p=0.000 n=9+10)
|
||
|
|
ContextFields-32 16.2ns ± 2% 12.3ns ± 3% -23.97% (p=0.000 n=9+9)
|
||
|
|
ContextAppend-32 6.70ns ± 0% 6.20ns ± 0% -7.44% (p=0.000 n=9+9)
|
||
|
|
LogFields-32 66.4ns ± 0% 24.6ns ± 2% -62.89% (p=0.000 n=10+9)
|
||
|
|
LogArrayObject-32 911ns ±11% 768ns ± 6% -15.64% (p=0.000 n=10+10)
|
||
|
|
LogFieldType/Floats-32 70.3ns ± 2% 29.5ns ± 1% -57.98% (p=0.000 n=10+10)
|
||
|
|
LogFieldType/Err-32 14.0ns ± 3% 12.1ns ± 8% -13.20% (p=0.000 n=8+10)
|
||
|
|
LogFieldType/Dur-32 17.2ns ± 2% 13.1ns ± 1% -24.27% (p=0.000 n=10+9)
|
||
|
|
LogFieldType/Object-32 54.3ns ±11% 52.3ns ± 7% ~ (p=0.239 n=10+10)
|
||
|
|
LogFieldType/Ints-32 20.3ns ± 2% 15.1ns ± 2% -25.50% (p=0.000 n=9+10)
|
||
|
|
LogFieldType/Interfaces-32 642ns ±11% 621ns ± 9% ~ (p=0.118 n=10+10)
|
||
|
|
LogFieldType/Interface(Objects)-32 635ns ±13% 632ns ± 9% ~ (p=0.592 n=10+10)
|
||
|
|
LogFieldType/Times-32 294ns ± 0% 27ns ± 1% -90.71% (p=0.000 n=10+9)
|
||
|
|
LogFieldType/Durs-32 121ns ± 0% 33ns ± 2% -72.44% (p=0.000 n=9+9)
|
||
|
|
LogFieldType/Interface(Object)-32 56.6ns ± 8% 52.3ns ± 8% -7.54% (p=0.007 n=10+10)
|
||
|
|
LogFieldType/Errs-32 17.8ns ± 3% 16.1ns ± 2% -9.71% (p=0.000 n=10+9)
|
||
|
|
LogFieldType/Time-32 40.5ns ± 1% 12.7ns ± 6% -68.66% (p=0.000 n=8+9)
|
||
|
|
LogFieldType/Bool-32 12.0ns ± 5% 10.2ns ± 2% -15.18% (p=0.000 n=10+8)
|
||
|
|
LogFieldType/Bools-32 17.2ns ± 2% 12.6ns ± 4% -26.63% (p=0.000 n=10+10)
|
||
|
|
LogFieldType/Int-32 12.3ns ± 2% 11.2ns ± 4% -9.27% (p=0.000 n=9+10)
|
||
|
|
LogFieldType/Float-32 16.7ns ± 1% 12.6ns ± 2% -24.42% (p=0.000 n=7+9)
|
||
|
|
LogFieldType/Str-32 12.7ns ± 7% 11.3ns ± 7% -10.88% (p=0.000 n=10+9)
|
||
|
|
LogFieldType/Strs-32 20.3ns ± 3% 18.2ns ± 3% -10.25% (p=0.000 n=9+10)
|
||
|
|
LogFieldType/Interface-32 183ns ±12% 175ns ± 9% ~ (p=0.078 n=10+10)
|
||
|
|
```
|
||
|
|
|
||
|
|
Log message size savings is greatly dependent on the number and type of fields in the log message.
|
||
|
|
Assuming this log message (with an Integer, timestamp and string, in addition to level).
|
||
|
|
|
||
|
|
`{"level":"error","Fault":41650,"time":"2018-04-01T15:18:19-07:00","message":"Some Message"}`
|
||
|
|
|
||
|
|
Two measurements were done for the log file sizes - one without any compression, second
|
||
|
|
using [compress/zlib](https://golang.org/pkg/compress/zlib/).
|
||
|
|
|
||
|
|
Results for 10,000 log messages:
|
||
|
|
|
||
|
|
| Log Format | Plain File Size (in KB) | Compressed File Size (in KB) |
|
||
|
|
| :--- | :---: | :---: |
|
||
|
|
| JSON | 920 | 28 |
|
||
|
|
| CBOR | 550 | 28 |
|
||
|
|
|
||
|
|
The example used to calculate the above data is available in [Examples](examples).
|