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| author | Ingo Molnar | 2013-02-03 11:14:06 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2013-02-03 11:14:06 +0100 |
| commit | f7355a5e7c722452e2cd80d6b83acb2f4423c4a2 (patch) | |
| tree | 2ee172a5607de2baf25b8e9b99acd181a34676a6 /kernel/trace/Kconfig | |
| parent | Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| parent | tracing: Init current_trace to nop_trace and remove NULL checks (diff) | |
| download | kernel-qcow2-linux-f7355a5e7c722452e2cd80d6b83acb2f4423c4a2.tar.gz kernel-qcow2-linux-f7355a5e7c722452e2cd80d6b83acb2f4423c4a2.tar.xz kernel-qcow2-linux-f7355a5e7c722452e2cd80d6b83acb2f4423c4a2.zip | |
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/core
Pull tracing updated from Steve Rostedt.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index cdc9d284d24e..36567564e221 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -253,6 +253,16 @@ config FTRACE_SYSCALLS help Basic tracer to catch the syscall entry and exit events. +config TRACER_SNAPSHOT + bool "Create a snapshot trace buffer" + select TRACER_MAX_TRACE + help + Allow tracing users to take snapshot of the current buffer using the + ftrace interface, e.g.: + + echo 1 > /sys/kernel/debug/tracing/snapshot + cat snapshot + config TRACE_BRANCH_PROFILING bool select GENERIC_TRACER |