eleksir/reniced
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Implemented linux ionice funtionality

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eleksir
2024-04-29 20:42:23 +03:00
parent d962e4fd46
commit 863ca34383
10 changed files with 244 additions and 16 deletions
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README.md
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@@ -60,6 +60,27 @@ Unlike supplpied systemd unit, supplied System V Init script assumes reniced run
setting must be set to true). Script also expects to find pid-file at **/var/run/reniced.pid** and executable itself at
**/usr/sbin/reniced**.
## Note on ionice operation
Currently implemented only linux io prio. On all other reniced-supported systems it is noop. Please note that io
priority can be set only by digits. Refer to *man ionice* for specific io classes and priorities inplemented there.
Here is table with numbers for defined class and priorities.
| class name | class number | list of possible priorities |
|:-----------|-------------:|----------------------------:|
| NONE |0 |0 |
| RealTime |1 |0, 1, 2, 3, 4, 5, 6, 7 |
| BestEffort |2 |0, 1, 2, 3, 4, 5, 6, 7 |
| Idle |3 |0 |
None is default io prio if process is not ioreniced. And it is the same value and behaviour as BestEffort with priority
of 4.
The lower priority value means higher priority and process will eat more io.
RealTime prio is not available for regular users but for root only.
## Special "thanks"
To security assholes that disrupt workflows and make this world worse.