Oracle Dual Port 25 Gb, User Manual

Page: 77 / 88

Analyze Slow Network Performance (Oracle Solaris x86)
# dtrace -F -m 'bnxt{trace(timestamp)}'
>/tmp/dtrace.out
For more information, refer to the Oracle Solaris
dtrace
(1M) man page.
■
If the server is panicked, retrieve the crash dump in
/var/crash
.
■
If the interface encountered a hard hang or a panic, file a CR at My Oracle Support .
Attach the last page of the
dtrace
command output or the crash dump file to the CR.
2. Check the driver statistics.
# kstat bnxt:* :statistics
3.
Use these parameters for performance tuning in the
bnxt.conf
file.
Parameters Description
rx_itr
Interval of receive interrupts
0
to
4080
,
25
(
50
usec) by default.
tx_itr
Interval of transmit interrupts
0
to
4080
,
25
(
50
usec) by default.
rx_limit_per_intr
Maximum number of packet to receive per interrupt16 ~ 4096, 1024 by
default.
rx_copy_threshold
Packet size to determine bcopy or not during receive0 ~ 9216, 128 by default.
tx_copy_threshold
Packet size to determine bcopy or not during transmit0 ~ 9216, 128 by default.
Related Information
■
“Analyze Why the Device Link Is Missing (Oracle Solaris x86)” on page 75
■
“Analyze Slow Network Performance (Oracle Solaris x86)” on page 77
■
“Analyze Why the Link Is Not Up After Back-To-Back Cable Connection (Oracle Solaris
x86)” on page 78
■
“Analyze Why Changing the MTU Does Not Correctly Set the Link Property (Oracle
Solaris x86)” on page 79
Analyze Slow Network Performance (Oracle Solaris x86)
The adapter supports several driver parameters that affect the performance of the ports. See
“Driver Parameters (Oracle Solaris x86)” on page 53 for more information about the default
values.
1. View the network performance.
Troubleshooting the Adapter (Oracle Solaris x86) 77