MT7990 Performance Degradation
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- Dominant language
- C
- Stars
- 888
- Forks
- 436
- PR merge metrics
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Description
Linux Kernel 6.18.8
AW7990-NPD (MT7990)
HW/SW Version: 0x8a108a10, Build Time: 20251112210058a
WM Firmware Version: ____000000, Build Time: 20251112210146
We are observing a performance degradation and loss of functionality when using 1 or more clients on the card. Under continuous TCP load (iperf3, 10 Mbps/client), wireless throughput degrades progressively and eventually fails.
We've observed the first client failure to occur within 24 hours, often within 12 hours of testing. Clients appear to degrade at different times. The longer the test has been permitted to run, more clients fail.
Once the failure state is reached, we have not found a method for recovering the device, a reboot is necessary. Resetting the interfaces, or reloading the mt7996e kernel module, has not resolved the failure.
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Research direction
The report names Linux Kernel 6.18.8, the AW7990-NPD (MT7990) card, the mt7996e kernel module, and iperf3. Start by reproducing the progressive client failures under continuous TCP load, including the reported interface and module-reset attempts; done requires identifying and resolving the degradation and recovery failure.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, linux
- Domain
- networking, operating-systems
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100