Performance and troubleshooting
221Alvium G1 User Guide V1.7.0
• Some 1000BASE-T NICs do not support auto negation.
Setting the link speed manually:
ethtool -s <dev> autoneg off speed 1000
• Enabling Ethernet Flow Control:
ethtool -A <dev> tx on rx on
ethtool -A <dev> autoneg on
ethtool -r <dev>
NIC driver settings under Windows
• Maximize the Jumbo frame size.
• Maximize the number of receive buffers.
• Switch off all non-required drivers, including filter drivers, in the network
adapter settings. Mostly, the Vimba X filter driver helps to increase the
performance. Be aware that using a PCAP filter, such as Wireshark, has an
impact on the performance.
• Optimize settings related to IRQs (interrupt requests) in the network driver
settings (interrupt moderation).
• RSS (receive side scaling) should be enabled to improve the performance
when multiple cameras or several network adapters are connected to the
host.
• Enable Ethernet Flow Control for Rx and Tx traffic.
Operation system settings
Settings under Linux
Be aware of automated network configuration tools. If configured incorrectly,
these tools can periodically remove the network settings and try to find a
connection to the Internet. Use a static configuration and deactivate these tools to
avoid issues.
Settings under Windows
• Disable any power-management that might impact the performance,
especially on NICs, PCIe or the CPU.
- Activate Ultimate Performance for power plan.
- Disable sleep modes that turn off the screen.
• Avoid unnecessary CPU and network load, also on different network adapters
where no camera is connected.
• Disable antivirus software if possible.
• Avoid system events causing lost packets, such as by plugging in USB devices.
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