Oracle Audio Technologies SunDual 10GbE XFP Tuning for Maximum Performance on a Solaris Platform

d. The following example shows ports on two different cards being set. Only one node needs to be specified.

name = "pciex108e,abcd" parent = "/pci@780/pci@0/pci@8/" unit-address = "0" class-opt-ipv4-tcp = 0x100;

name = "pciex108e,abcd" parent = "/pci@7c0/pci@0/pci@9/" unit-address = "0" class-opt-ipv4-tcp = 0x40;

3. Save the nxge.conf file.

Tuning for Maximum Performance on a Solaris Platform

Tuning for maximum performance in a Solaris platform depends on whether you are using an UltraSPARC CPU based platform or an AMD CPU based platform.

▼To Improve Performance on an UltraSPARC CPU Based Sun Platform

1.Improve performance by adding the following /etc/system file:

#set ddi_msix_alloc_limit=4

Increasing the MSI improves the Rx performance. The default value for MSI is 2, but changing it to 4 improves performance (8 can be used for UltraSparc-T1 based systems).

2.Reboot the system:

#reboot -r

Chapter 5 Configuring the nxge Device Driver Parameters 41