User Manual

Rev 2.1-1.0.6
Mellanox Technologies
127
7 Performance
7.1 General System Configurations
The following sections describe recommended configurations for system components and/or
interfaces. Different systems may have different features, thus some recommendations below
may not be applicable.
7.1.1 PCI Express (PCIe) Capabilities
Table 16 - Recommended PCIe Configuration
PCIe Generation 3.0
Speed 8GT/s
Width x8 or x16
Max Payload size 256
Max Read Request 4096
7.1.2 Memory Configuration
For high performance it is recommended to use the highest memory speed with fewest DIMMs
and populate all memory channels for every CPU installed.
For further information, please refer to your vendor's memory configuration instructions or mem-
ory configuration tool available Online.
7.1.3 Recommended BIOS Settings
These performance optimizations may result in higher power consumption.
7.1.3.1 General
Set BIOS power management to Maximum Performance.
For ConnectX3® based network adapters, 40GbE Ethernet adapters it is recommended
to use an x16 PCIe slot to benefit from the additional buffers allocated by the CPU.