Composable and configurable logging framework. The idea of the approach is described in the following blog post:
The repository contains two packages:
co-log-core: lightweight package with basic data types and general idea.co-log: implementation of logging library based onco-log-core.
See How to start using co-log? for simple example of the
co-log library usage.
co-log is compared with basic functions like putStrLn. Since IO overhead is
big enough, every benchmark dumps 10K messages to output. If benchmark name
doesn't contain Message then this benchmark simply dumps string "message"
to output, othwerwise it works with Message data type from the co-log
library.
| Benchmarks | Time |
|---|---|
Prelude.putStrLn |
5.358ms |
Text.putStrLn |
9.255ms |
ByteString.putStrLn |
2.970ms |
mempty |
1.229ms |
logStringStdout |
5.127ms |
logPrint |
5.163ms |
logTextStdout |
5.140ms |
logByteStringStdout |
3.931ms |
logByteStringStderr |
17.503ms |
ByteString > (stdout <> stderr) |
17.612ms |
Message > format > stdout |
9.367ms |
Message > format > ByteString > stdout |
2.994ms |
Message{callstack} > format > stdout |
9.367ms |
Message{callstack:5} > format > stdout |
9.441ms |
Message{callstack:50} > format > stdout |
9.305ms |
Message{Time,ThreadId} > format > stdout |
154.880ms |