Last updated: 14 February 2008
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Motherboard performance with Myri-10G NICs |
| Motherboard: | Intel S5400SF |
| CPU Type: | Xeon |
| Number of CPUs: | 2 |
| CPU Speed (GHz) | 3.00 |
| Chipset: | Intel 5400 |
| Interrupt Type: | MSI |
| Write Combining: | Enabled |
| Linux Kernel: | 2.6.16.46-0.12-smp |
| Myri10GE Driver version: | 1.4.1 |
| Hardware Write Speed (Gb/s) | 13.890 |
| Hardware Read Speed (Gb/s) | 10.600 |
| Hardware Read/Write (Bidirectional) Speed (Gb/s) | 21.000 |
| Netperf TCP STREAM, MTU 9000 (Mb/s) | |
| Netperf TCP SENDFILE, MTU 9000 (Mb/s) | |
| Netperf UDP STREAM, MTU 9000 (Mb/s) | |
| Netperf TCP STREAM, MTU 1500 (Mb/s) | |
| Netperf TCP SENDFILE, MTU 1500 (Mb/s) | |
| Netperf UDP STREAM, MTU 1500 (Mb/s) |
Note: It is possible to significantly improve the Hardware Read DMA speed and the Hardware Read/Write (bidirectional) DMA speed by using the setpci command to enable DMA-completion coalescing. The current BIOS on this motherboard does not enable this feature by default. Allowing the chipset to combine Read-DMA packets in up to 256-byte-sized packets (instead of the default of 64-byte), we have seen the Read DMA speed increase to 14.152 Gb/s, and the Read/Write DMA speed increase to 27.5 Gb/s.
Last updated: 14 February 2008