This work compares the performance and power consumption of 7 different scheduling policies including two real-time policies with 5 benchmark utilities.
- SCHED_IDLE
- SCHED_OTHER and nice=20
- SCHED_OTHER and nice=-19
- SCHED_FIFO and prio=49
- SCHED_RR and prio=49
- SCHED_RT_FIFO* and prio=49
- SCHED_RT_RR* and prio=49
* SCHED_RT_X policy is the policy SCHED_X used in real-time kernel
| Benchmark | Introduction |
|---|---|
| Latt | Simple latency tester that combines multiple processes |
| Hackbench | Scheduler stress tester by creating pairs of entities communicate via either sockets or pipes |
| FFmpeg | Test the systemss audio/video encoding performance |
| 7-Zip Compression | A built-in LZMA benchmark |
| John The Ripper | A password cracker and performance measured in c/s |
Click here to view more figures.
Full benchmark result scheduler-comparison on OpenBenchmarking.org
The paper for this project.
- Molnar, Ingo. "CFS scheduler." Linux. Vol. 2. 2007.
- Jones, M. Tim. "Inside the linux 2.6 completely fair scheduler." IBM Developer Works Technical Report 2009 (2009).
- sched - overview of CPU scheduling