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Diffstat (limited to 'drivers/staging/lttng/Kconfig')
| -rw-r--r-- | drivers/staging/lttng/Kconfig | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/staging/lttng/Kconfig b/drivers/staging/lttng/Kconfig new file mode 100644 index 000000000000..34c4a4f762ea --- /dev/null +++ b/drivers/staging/lttng/Kconfig @@ -0,0 +1,35 @@ +config LTTNG + tristate "LTTng kernel tracer" + depends on TRACEPOINTS + help + The LTTng 2.0 Tracer Toolchain allows integrated kernel and + user-space tracing from a single user interface: the "lttng" + command. See http://lttng.org website for the "lttng-tools" + user-space tracer control tools package and the "babeltrace" + package for conversion of trace data to a human-readable + format. + + LTTng features: + - System-wide tracing across kernel, libraries and + applications, + - Tracepoints, detailed syscall tracing (fast strace replacement), + Function tracer, CPU Performance Monitoring Unit (PMU) counters + and kprobes support, + - Have the ability to attach "context" information to events in the + trace (e.g. any PMU counter, pid, ppid, tid, comm name, etc). All + the extra information fields to be collected with events are + optional, specified on a per-tracing-session basis (except for + timestamp and event id, which are mandatory). + - Precise and fast clock sources with near cycle-level + timestamps, + - Efficient trace data transport: + - Compact Binary format with CTF, + - Per-core buffers ensures scalability, + - Fast-paths in caller context, amortized synchronization, + - Zero-copy using splice and mmap system calls, over disk, + network or consumed in-place, + - Multiple concurrent tracing sessions are supported, + - Designed to meet hard real-time constraints, + - Supports live streaming of the trace data, + - Produces CTF (Common Trace Format) natively (see + http://www.efficios.com/ctf). |