Sun Microsystems Dual XFP, User Manual, Page: 61 / 100

Chapter 5 Configuring the
nxge
Device Driver Parameters 43
d. The following example shows ports on two different cards being set. Only one
node needs to be specified.
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 :
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:
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;
#
set ddi_msix_alloc_limit=4
# reboot -r