This is the command trace-cmd-snapshot that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
trace-cmd-snapshot - take, reset, free, or show a Ftrace kernel snapshot
SYNOPSIS
trace-cmd snapshot [OPTIONS]
DESCRIPTION
The trace-cmd(1) snapshot controls or displays the Ftrace Linux kernel snapshot feature
(if the kernel supports it). This is useful to "freeze" an instance of a live trace but
without stopping the trace.
trace-cmd start -p function
trace-cmd snapshot -s
trace-cmd snapshot
[ dumps the content of buffer at 'trace-cmd snapshot -s' ]
trace-cmd snapshot -s
trace-cmd snapshot
[ dumps the new content of the buffer at the last -s operation ]
OPTIONS
-s
Take a snapshot of the currently running buffer.
-r
Clear out the buffer.
-f
Free the snapshot buffer. The buffer takes up memory inside the kernel. It is best to
free it when not in use. The first -s operation will allocate it if it is not already
allocated.
-c cpu
Operate on a per cpu snapshot (may not be fully supported by all kernels)
-B buf
If a buffer instance was created, then the -B option will operate on the snapshot
within the buffer.
Use trace-cmd-snapshot online using onworks.net services
