OpenVisualCloud / OpenVisualCloud/Media-Transport-Library
UHD Performance/Lock Contention
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- Dominant language
- C
- Stars
- 246
- Forks
- 88
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Description
Hi,
I ran a test receiving a single redundant UHD stream, however, I was unable to receive it without performance drops. Seeing plenty of hw_dropped_packets:
System Specs:
- AMD EPYC 9354P 32-Core Processor (w/ Hyperthreading)
- 6x 16GB DDR5 RAM
- 2x E810 XXV 25G
- Ubuntu 22.04, Kernel 5.15.0.179
- Kernel Parameters: "isolcpus=61-63 irq_affinity=0-60 rcu_nocbs=61-63 iommu=pt amd_iommu=on"
Anything else we can check to see why we don't see good performance here?
Thanks
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First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
No source file, test, or entry point is named. Start by reproducing the single redundant UHD stream on the listed hardware and kernel while observing hw_dropped_packets and lock contention. Done means identifying the performance bottleneck and documenting or implementing a verified change that prevents the reported performance drops.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, linux
- Domain
- networking, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100