4 -------------------------------------------
5 Measures the operating system timer latency
6 -------------------------------------------
12 **rtla timerlat** [*MODE*] ...
17 .. include:: common_timerlat_description.rst
19 The *timerlat* tracer outputs information in two ways. It periodically
20 prints the timer latency at the timer *IRQ* handler and the *Thread* handler.
21 It also provides information for each noise via the **osnoise:** tracepoints.
22 The **rtla timerlat top** mode displays a summary of the periodic output
23 from the *timerlat* tracer. The **rtla hist hist** mode displays a histogram
24 of each tracer event occurrence. For further details, please refer to the
31 Prints the summary from *timerlat* tracer.
35 Prints a histogram of timerlat samples.
37 If no *MODE* is given, the top mode is called, passing the arguments.
43 Display the help text.
45 For other options, see the man page for the corresponding mode.
49 **rtla-timerlat-top**\(1), **rtla-timerlat-hist**\(1)
51 *timerlat* tracer documentation: <https://www.kernel.org/doc/html/latest/trace/timerlat-tracer.html>
55 Written by Daniel Bristot de Oliveira <bristot@kernel.org>
57 .. include:: common_appendix.rst