TRACE-CMD-SNAPSHOT(1) | libtracefs Manual | TRACE-CMD-SNAPSHOT(1) |
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
-r
-f
-c cpu
-B buf
SEE ALSO
trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1)
AUTHOR
Written by Steven Rostedt, <rostedt@goodmis.org[1]>
RESOURCES
https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/
COPYING
Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).
NOTES
- 1.
- rostedt@goodmis.org
04/07/2024 | libtracefs |