Summary
Steps to solve the performance issue in E810-CQDA2 adapter for CentOs*
Description
Bandwidth throughput is not achieving more than 8Gbps in 100G cards
Resolution
- Check Non-Volatile Memory (NVM) is latest, if not update to Latest Version.
- Update Ice driver to latest version, download this Linux* driver package, and update it.
- To update driver: (readme file has detailed instructions)
$ rpmbuild -tb ice-1.6.7.tar.gz - This will create an rpm file. You can find the rpm file location in the last few lines of the command output.
$ rpm -Uvh /root/rpmbuild/RPMS/x8664/ice-1.6.7-1.x86_64.rpm. - reboot the system
$ reboot - verify that the driver is updated using below command.
$ ethtool -i ethX (network port name)
Once the Ice Driver and NVM driver are latest, follow the below steps
- To update driver: (readme file has detailed instructions)
- Check if VT-d is enabled in BIOS
- Check if DDP package is loaded properly. Run this command to check the DDP : $ dmesg | grep DDP
Additional information
Refer Linux* performance tuning document to know information about this tuning process.