High CPU usage when using ALSA with null device
Open
bug
- Dominant language
- C++
- Stars
- 10.4k
- Forks
- 1.3k
- Avg merge
- 2d 13h
- Merged PRs (30d)
- 7
Description
If the settings above are in effect, LMMS eats more than half of the CPU, although the CPU meter bar under the scope stays at zero.
This problem exists in 1.3 alpha and 1.2.2 as well.
Contributor guide
No contributing guide indexed for this repository
Research direction
The report concerns ALSA with the null device and reproduces in LMMS 1.3 alpha and 1.2.2. Start by reproducing the reported settings and tracing the ALSA/null-device audio path; done means CPU usage no longer spikes while the scope meter remains at zero.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- linux
- Domain
- audio-video-rtc, desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100