Having trouble tuning in WSL
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- Dominant language
- Python
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Description
Trace:
$ sudo env "PATH=$PATH VIRTUAL_ENV=$VIRTUAL_ENV" pyperf system tune
Tune the system configuration to run benchmarks
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
Actions
=======
Perf event: Max sample rate set to 1 per second
System state
============
CPU: use 8 logical CPUs: 0-7
Perf event: Maximum sample rate: 1 per second
ASLR: Full randomization
Linux scheduler: No CPU is isolated
IRQ affinity: Default IRQ affinity: CPU 0-7
IRQ affinity: IRQ affinity: IRQ 0-15=CPU 0-7
Power supply: the power cable is plugged
Advices
=======
Linux scheduler: Use isolcpus=<cpu list> kernel parameter to isolate CPUs
Linux scheduler: Use rcu_nocbs=<cpu list> kernel parameter (with isolcpus) to not schedule RCU on isolated CPUs
Errors
======
Turbo Boost (MSR): Failed to read MSR 0x1a0 from /dev/cpu/0/msr: [Errno 2] No such file or directory: '/dev/cpu/0/msr'
Turbo Boost (MSR): Try to load the msr kernel module: sudo modprobe msr
IRQ affinity: Unknown service state: ' * irqbalance is not running'
IRQ affinity: Unknown service state: ' * irqbalance is not running'
pyperf 2.2.0, Ubuntu 20.04 Focal Fossa, WSL 2, Windows 10.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the pyperf system tune command and reproduce the trace in the reported WSL 2, Ubuntu 20.04 environment. Investigate the systemd, MSR, and irqbalance errors shown in the output; done means the expected WSL behavior and handling of these failures are established.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100