196
Task Command
Display memory usage for all user processes.
display
process
memory
[
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Display heap memory usage for a user process.
display
process
memory
heap
job
job-id
[
verbose
]
[
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Display
the addresses of memory blocks with a
specified size used by a user process.
display
process
memory
heap
job
job-id
size
memory-size
[
offset
offset-size
] [
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Display memory content starting from a specified
memory block for a user process.
display
process
memory
heap
job
job-i
d
address
starting-address
length
memory-length
[
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Display context information for process exceptions.
display
exception context
[
count
value
] [
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Display the core file directory.
display exception filepath
[
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Enable or disable a process to generate core files for
exceptions and set the maximum number of core files
(which defaults to 1).
process
core
{
maxcore
value
|
off
} {
job
job-id
|
name
process-name
} [
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Specify the directory for saving core files (the default
directory is the root directory of the storage medium
on the global active MPU).
exception filepath
directory
Clear context information for process exceptions.
reset exception context
[
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Monitoring kernel threads
Tasks in this section help you quickly identify thread deadloop and starvation problems and their causes.
Configuring kernel thread deadloop detection
CAUTION:
H3C recommends the default settings. Inappropriate configuration of kernel thread deadloop detection
can cause service problems or system breakdown. Make sure you understand the impact of this
configuration on your network before you configure kernel thread deadloop detection.
Kernel threads share resources. If a kernel thread monopolizes the CPU, other threads cannot run,
resulting in a deadloop.
This feature enables the device to detect deadloops. If a thread occupies the CPU for a specific interval,
the device considers that a deadloop has occurred. It generates a deadloop message and reboots to
remove the deadloop.
To configure kernel thread deadloop detection (in standalone mode):