Hsphinx.addnodesdocument)}( rawsourcechildren]( translations LanguagesNode)}(hhh](h pending_xref)}(hhh]docutils.nodesTextChinese (Simplified)}parenthsba attributes}(ids]classes]names]dupnames]backrefs] refdomainstdreftypedoc reftarget1/translations/zh_CN/tools/rtla/rtla-timerlat-histmodnameN classnameN refexplicitutagnamehhh ubh)}(hhh]hChinese (Traditional)}hh2sbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget1/translations/zh_TW/tools/rtla/rtla-timerlat-histmodnameN classnameN refexplicituh1hhh ubh)}(hhh]hItalian}hhFsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget1/translations/it_IT/tools/rtla/rtla-timerlat-histmodnameN classnameN refexplicituh1hhh ubh)}(hhh]hJapanese}hhZsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget1/translations/ja_JP/tools/rtla/rtla-timerlat-histmodnameN classnameN refexplicituh1hhh ubh)}(hhh]hKorean}hhnsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget1/translations/ko_KR/tools/rtla/rtla-timerlat-histmodnameN classnameN refexplicituh1hhh ubh)}(hhh]hSpanish}hhsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget1/translations/sp_SP/tools/rtla/rtla-timerlat-histmodnameN classnameN refexplicituh1hhh ubeh}(h]h ]h"]h$]h&]current_languageEnglishuh1h hh _documenthsourceNlineNubhsection)}(hhh](htitle)}(hrtla-timerlat-histh]hrtla-timerlat-hist}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhhhK/var/lib/git/docbuild/linux/Documentation/tools/rtla/rtla-timerlat-hist.rsthKubh)}(hhh](h)}(h0Histograms of the operating system timer latencyh]h0Histograms of the operating system timer latency}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhhhhhKubh field_list)}(hhh]hfield)}(hhh](h field_name)}(hManual sectionh]hManual section}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhhhKubh field_body)}(h1 h]h paragraph)}(h1h]h1}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhKhhubah}(h]h ]h"]h$]h&]uh1hhhubeh}(h]h ]h"]h$]h&]uh1hhhhKhhhhubah}(h]h ]h"]h$]h&]uh1hhhhhhhhKubh)}(hhh](h)}(hSYNOPSISh]hSYNOPSIS}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hhhhhK ubh)}(h&**rtla timerlat hist** [*OPTIONS*] ...h](hstrong)}(h**rtla timerlat hist**h]hrtla timerlat hist}(hj!hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh [}(hjhhhNhNubhemphasis)}(h *OPTIONS*h]hOPTIONS}(hj5hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh] ...}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhK hj hhubeh}(h]synopsisah ]h"]synopsisah$]h&]uh1hhhhhhhhK ubh)}(hhh](h)}(h DESCRIPTIONh]h DESCRIPTION}(hjXhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjUhhhhhKubh)}(hXBThe **rtla timerlat** tool is an interface for the *timerlat* tracer. The *timerlat* tracer dispatches a kernel thread per-cpu. These threads set a periodic timer to wake themselves up and go back to sleep. After the wakeup, they collect and generate useful information for the debugging of operating system timer latency.h](hThe }(hjfhhhNhNubj )}(h**rtla timerlat**h]h rtla timerlat}(hjnhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjfubh tool is an interface for the }(hjfhhhNhNubj4)}(h *timerlat*h]htimerlat}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjfubh tracer. The }(hjfhhhNhNubj4)}(h *timerlat*h]htimerlat}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjfubh tracer dispatches a kernel thread per-cpu. These threads set a periodic timer to wake themselves up and go back to sleep. After the wakeup, they collect and generate useful information for the debugging of operating system timer latency.}(hjfhhhNhNubeh}(h]h ]h"]h$]h&]uh1hh8Documentation/tools/rtla/common_timerlat_description.rsthKhjUhhubh)}(hThe *timerlat* tracer outputs information in two ways. It periodically prints the timer latency at the timer *IRQ* handler and the *Thread* handler. It also enables the trace of the most relevant information via **osnoise:** tracepoints.h](hThe }(hjhhhNhNubj4)}(h *timerlat*h]htimerlat}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh_ tracer outputs information in two ways. It periodically prints the timer latency at the timer }(hjhhhNhNubj4)}(h*IRQ*h]hIRQ}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh handler and the }(hjhhhNhNubj4)}(h*Thread*h]hThread}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubhI handler. It also enables the trace of the most relevant information via }(hjhhhNhNubj )}(h **osnoise:**h]hosnoise:}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh tracepoints.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhjUhhubh)}(hXThe **rtla timerlat** tool sets the options of the *timerlat* tracer and collects and displays a summary of the results. By default, the collection is done synchronously in kernel space using a dedicated BPF program attached to the *timerlat* tracer. If either BPF or the **osnoise:timerlat_sample** tracepoint it attaches to is unavailable, the **rtla timerlat** tool falls back to using tracefs to process the data asynchronously in user space.h](hThe }(hjhhhNhNubj )}(h**rtla timerlat**h]h rtla timerlat}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh tool sets the options of the }(hjhhhNhNubj4)}(h *timerlat*h]htimerlat}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh tracer and collects and displays a summary of the results. By default, the collection is done synchronously in kernel space using a dedicated BPF program attached to the }(hjhhhNhNubj4)}(h *timerlat*h]htimerlat}(hj-hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh tracer. If either BPF or the }(hjhhhNhNubj )}(h**osnoise:timerlat_sample**h]hosnoise:timerlat_sample}(hj?hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh/ tracepoint it attaches to is unavailable, the }(hjhhhNhNubj )}(h**rtla timerlat**h]h rtla timerlat}(hjQhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubhS tool falls back to using tracefs to process the data asynchronously in user space.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhK hjUhhubh)}(hThe **rtla timerlat hist** displays a histogram of each tracer event occurrence. This tool uses the periodic information, and the **osnoise:** tracepoints are enabled when using the **-T** option.h](hThe }(hjihhhNhNubj )}(h**rtla timerlat hist**h]hrtla timerlat hist}(hjqhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjiubhh displays a histogram of each tracer event occurrence. This tool uses the periodic information, and the }(hjihhhNhNubj )}(h **osnoise:**h]hosnoise:}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjiubh( tracepoints are enabled when using the }(hjihhhNhNubj )}(h**-T**h]h-T}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjiubh option.}(hjihhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKhjUhhubeh}(h] descriptionah ]h"] descriptionah$]h&]uh1hhhhhhhhKubh)}(hhh](h)}(hOPTIONSh]hOPTIONS}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhhhhhKubh)}(h**-a**, **--auto** *us*h](j )}(h**-a**h]h-a}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh, }(hjhhhNhNubj )}(h **--auto**h]h--auto}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*us*h]hus}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1hh4Documentation/tools/rtla/common_timerlat_options.rsthKhjhhubh block_quote)}(hXSet the automatic trace mode. This mode sets some commonly used options while debugging the system. It is equivalent to use **-T** *us* **-s** *us* **-t**. By default, *timerlat* tracer uses FIFO:95 for *timerlat* threads, thus equilavent to **-P** *f:95*. h]h)}(hXSet the automatic trace mode. This mode sets some commonly used options while debugging the system. It is equivalent to use **-T** *us* **-s** *us* **-t**. By default, *timerlat* tracer uses FIFO:95 for *timerlat* threads, thus equilavent to **-P** *f:95*.h](h|Set the automatic trace mode. This mode sets some commonly used options while debugging the system. It is equivalent to use }(hj hhhNhNubj )}(h**-T**h]h-T}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }(hj hhhNhNubj4)}(h*us*h]hus}(hj#hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubh }hj sbj )}(h**-s**h]h-s}(hj5hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }hj sbj4)}(h*us*h]hus}(hjGhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubh }(hj hhhNhNubj )}(h**-t**h]h-t}(hjYhhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh. By default, }(hj hhhNhNubj4)}(h *timerlat*h]htimerlat}(hjkhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubh tracer uses FIFO:95 for }(hj hhhNhNubj4)}(h *timerlat*h]htimerlat}(hj}hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubh threads, thus equilavent to }(hj hhhNhNubj )}(h**-P**h]h-P}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }hj sbj4)}(h*f:95*h]hf:95}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubh.}(hj hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhjubah}(h]h ]h"]h$]h&]uh1jhjhKhjhhubh)}(h**-p**, **--period** *us*h](j )}(h**-p**h]h-p}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh, }(hjhhhNhNubj )}(h **--period**h]h--period}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*us*h]hus}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1hhjhKhjhhubj)}(h2Set the *timerlat* tracer period in microseconds. h]h)}(h1Set the *timerlat* tracer period in microseconds.h](hSet the }(hjhhhNhNubj4)}(h *timerlat*h]htimerlat}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh tracer period in microseconds.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhK hjubah}(h]h ]h"]h$]h&]uh1jhjhK hjhhubh)}(h**-i**, **--irq** *us*h](j )}(h**-i**h]h-i}(hj)hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj%ubh, }(hj%hhhNhNubj )}(h **--irq**h]h--irq}(hj;hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj%ubh }(hj%hhhNhNubj4)}(h*us*h]hus}(hjMhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj%ubeh}(h]h ]h"]h$]h&]uh1hhjhK hjhhubj)}(hCStop trace if the *IRQ* latency is higher than the argument in us. h]h)}(hBStop trace if the *IRQ* latency is higher than the argument in us.h](hStop trace if the }(hjehhhNhNubj4)}(h*IRQ*h]hIRQ}(hjmhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjeubh+ latency is higher than the argument in us.}(hjehhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhjaubah}(h]h ]h"]h$]h&]uh1jhjhKhjhhubh)}(h**-T**, **--thread** *us*h](j )}(h**-T**h]h-T}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh, }(hjhhhNhNubj )}(h **--thread**h]h--thread}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*us*h]hus}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1hhjhKhjhhubj)}(hFStop trace if the *Thread* latency is higher than the argument in us. h]h)}(hEStop trace if the *Thread* latency is higher than the argument in us.h](hStop trace if the }(hjhhhNhNubj4)}(h*Thread*h]hThread}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh+ latency is higher than the argument in us.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhjubah}(h]h ]h"]h$]h&]uh1jhjhKhjhhubh)}(h**-s**, **--stack** *us*h](j )}(h**-s**h]h-s}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh, }(hjhhhNhNubj )}(h **--stack**h]h--stack}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*us*h]hus}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1hhjhKhjhhubj)}(h[Save the stack trace at the *IRQ* if a *Thread* latency is higher than the argument in us. h]h)}(hZSave the stack trace at the *IRQ* if a *Thread* latency is higher than the argument in us.h](hSave the stack trace at the }(hj1hhhNhNubj4)}(h*IRQ*h]hIRQ}(hj9hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj1ubh if a }(hj1hhhNhNubj4)}(h*Thread*h]hThread}(hjKhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj1ubh+ latency is higher than the argument in us.}(hj1hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhj-ubah}(h]h ]h"]h$]h&]uh1jhjhKhjhhubh)}(h**-t**, **--trace** \[*file*]h](j )}(h**-t**h]h-t}(hjmhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjiubh, }(hjihhhNhNubj )}(h **--trace**h]h--trace}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjiubh [}(hjihhhNhNubj4)}(h*file*h]hfile}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjiubh]}(hjihhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhjhhubj)}(h7Save the stopped trace to [*file|timerlat_trace.txt*]. h]h)}(h6Save the stopped trace to [*file|timerlat_trace.txt*].h](hSave the stopped trace to [}(hjhhhNhNubj4)}(h*file|timerlat_trace.txt*h]hfile|timerlat_trace.txt}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh].}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhjubah}(h]h ]h"]h$]h&]uh1jhjhKhjhhubhdefinition_list)}(hhh](hdefinition_list_item)}(h**--dma-latency** *us* Set the /dev/cpu_dma_latency to *us*, aiming to bound exit from idle latencies. *cyclictest* sets this value to *0* by default, use **--dma-latency** *0* to have similar results. h](hterm)}(h**--dma-latency** *us*h](j )}(h**--dma-latency**h]h --dma-latency}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*us*h]hus}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1jhjhK hjubh definition)}(hhh]h)}(hSet the /dev/cpu_dma_latency to *us*, aiming to bound exit from idle latencies. *cyclictest* sets this value to *0* by default, use **--dma-latency** *0* to have similar results.h](h Set the /dev/cpu_dma_latency to }(hjhhhNhNubj4)}(h*us*h]hus}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh,, aiming to bound exit from idle latencies. }(hjhhhNhNubj4)}(h *cyclictest*h]h cyclictest}(hj)hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh sets this value to }(hjhhhNhNubj4)}(h*0*h]h0}(hj;hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh by default, use }(hjhhhNhNubj )}(h**--dma-latency**h]h --dma-latency}(hjMhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*0*h]h0}(hj_hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh to have similar results.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhj ubah}(h]h ]h"]h$]h&]uh1j hjubeh}(h]h ]h"]h$]h&]uh1jhjhK hjubj)}(hXR**--deepest-idle-state** *n* Disable idle states higher than *n* for cpus that are running timerlat threads to reduce exit from idle latencies. If *n* is -1, all idle states are disabled. On exit from timerlat, the idle state setting is restored to its original state before running timerlat. Requires rtla to be built with libcpupower. h](j)}(h**--deepest-idle-state** *n*h](j )}(h**--deepest-idle-state**h]h--deepest-idle-state}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*n*h]hn}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1jhjhK(hjubj )}(hhh](h)}(hXDisable idle states higher than *n* for cpus that are running timerlat threads to reduce exit from idle latencies. If *n* is -1, all idle states are disabled. On exit from timerlat, the idle state setting is restored to its original state before running timerlat.h](h Disable idle states higher than }(hjhhhNhNubj4)}(h*n*h]hn}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubhS for cpus that are running timerlat threads to reduce exit from idle latencies. If }(hjhhhNhNubj4)}(h*n*h]hn}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh is -1, all idle states are disabled. On exit from timerlat, the idle state setting is restored to its original state before running timerlat.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhK#hjubh)}(h+Requires rtla to be built with libcpupower.h]h+Requires rtla to be built with libcpupower.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhK(hjubeh}(h]h ]h"]h$]h&]uh1j hjubeh}(h]h ]h"]h$]h&]uh1jhjhK(hjhhubeh}(h]h ]h"]h$]h&]uh1jhjhhhjhNubh)}(h**-k**, **--kernel-threads**h](j )}(h**-k**h]h-k}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh, }(hjhhhNhNubj )}(h**--kernel-threads**h]h--kernel-threads}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1hhjhK*hjhhubj)}(h:Use timerlat kernel-space threads, in contrast of **-u**. h]h)}(h9Use timerlat kernel-space threads, in contrast of **-u**.h](h2Use timerlat kernel-space threads, in contrast of }(hj4hhhNhNubj )}(h**-u**h]h-u}(hj<hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj4ubh.}(hj4hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhK,hj0ubah}(h]h ]h"]h$]h&]uh1jhjhK,hjhhubh)}(h**-u**, **--user-threads**h](j )}(h**-u**h]h-u}(hj^hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjZubh, }(hjZhhhNhNubj )}(h**--user-threads**h]h--user-threads}(hjphhhNhNubah}(h]h ]h"]h$]h&]uh1jhjZubeh}(h]h ]h"]h$]h&]uh1hhjhK.hjhhubj)}(hX;Set timerlat to run without a workload, and then dispatches user-space workloads to wait on the timerlat_fd. Once the workload is awakes, it goes to sleep again adding so the measurement for the kernel-to-user and user-to-kernel to the tracer output. **--user-threads** will be used unless the user specify **-k**. h]h)}(hX:Set timerlat to run without a workload, and then dispatches user-space workloads to wait on the timerlat_fd. Once the workload is awakes, it goes to sleep again adding so the measurement for the kernel-to-user and user-to-kernel to the tracer output. **--user-threads** will be used unless the user specify **-k**.h](hSet timerlat to run without a workload, and then dispatches user-space workloads to wait on the timerlat_fd. Once the workload is awakes, it goes to sleep again adding so the measurement for the kernel-to-user and user-to-kernel to the tracer output. }(hjhhhNhNubj )}(h**--user-threads**h]h--user-threads}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh& will be used unless the user specify }(hjhhhNhNubj )}(h**-k**h]h-k}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhK0hjubah}(h]h ]h"]h$]h&]uh1jhjhK0hjhhubh)}(h**-U**, **--user-load**h](j )}(h**-U**h]h-U}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh, }(hjhhhNhNubj )}(h**--user-load**h]h --user-load}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1hhjhK5hjhhubj)}(hSet timerlat to run without workload, waiting for the user to dispatch a per-cpu task that waits for a new period on the tracing/osnoise/per_cpu/cpu$ID/timerlat_fd. See linux/tools/rtla/sample/timerlat_load.py for an example of user-load code. h]h)}(hSet timerlat to run without workload, waiting for the user to dispatch a per-cpu task that waits for a new period on the tracing/osnoise/per_cpu/cpu$ID/timerlat_fd. See linux/tools/rtla/sample/timerlat_load.py for an example of user-load code.h]hSet timerlat to run without workload, waiting for the user to dispatch a per-cpu task that waits for a new period on the tracing/osnoise/per_cpu/cpu$ID/timerlat_fd. See linux/tools/rtla/sample/timerlat_load.py for an example of user-load code.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhK7hjubah}(h]h ]h"]h$]h&]uh1jhjhK7hjhhubh)}(h**--on-threshold** *action*h](j )}(h**--on-threshold**h]h--on-threshold}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*action*h]haction}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1hhjhK;hjhhubj)}(hXDefines an action to be executed when tracing is stopped on a latency threshold specified by **-i/--irq** or **-T/--thread**. Multiple --on-threshold actions may be specified, and they will be executed in the order they are provided. If any action fails, subsequent actions in the list will not be executed. Supported actions are: - *trace[,file=]* Saves trace output, optionally taking a filename. Alternative to -t/--trace. Note that nlike -t/--trace, specifying this multiple times will result in the trace being saved multiple times. - *signal,num=,pid=* Sends signal to process. "parent" might be specified in place of pid to target the parent process of rtla. - *shell,command=* Execute shell command. - *continue* Continue tracing after actions are executed instead of stopping. Example: $ rtla timerlat -T 20 --on-threshold trace --on-threshold shell,command="grep ipi_send timerlat_trace.txt" --on-threshold signal,num=2,pid=parent This will save a trace with the default filename "timerlat_trace.txt", print its lines that contain the text "ipi_send" on standard output, and send signal 2 (SIGINT) to the parent process. Performance Considerations: For time-sensitive actions, it is recommended to run **rtla timerlat** with BPF support and RT priority. Note that due to implementational limitations, actions might be delayed up to one second after tracing is stopped if BPF mode is not available or disabled. h](h)}(h}Defines an action to be executed when tracing is stopped on a latency threshold specified by **-i/--irq** or **-T/--thread**.h](h]Defines an action to be executed when tracing is stopped on a latency threshold specified by }(hj0hhhNhNubj )}(h **-i/--irq**h]h-i/--irq}(hj8hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj0ubh or }(hj0hhhNhNubj )}(h**-T/--thread**h]h -T/--thread}(hjJhhhNhNubah}(h]h ]h"]h$]h&]uh1jhj0ubh.}(hj0hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhK=hj,ubh)}(hMultiple --on-threshold actions may be specified, and they will be executed in the order they are provided. If any action fails, subsequent actions in the list will not be executed.h]hMultiple --on-threshold actions may be specified, and they will be executed in the order they are provided. If any action fails, subsequent actions in the list will not be executed.}(hjbhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhK@hj,ubh)}(hSupported actions are:h]hSupported actions are:}(hjphhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKDhj,ubh bullet_list)}(hhh](h list_item)}(h*trace[,file=]* Saves trace output, optionally taking a filename. Alternative to -t/--trace. Note that nlike -t/--trace, specifying this multiple times will result in the trace being saved multiple times. h](h)}(h*trace[,file=]*h]j4)}(hjh]htrace[,file=]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubah}(h]h ]h"]h$]h&]uh1hhjhKFhjubh)}(hSaves trace output, optionally taking a filename. Alternative to -t/--trace. Note that nlike -t/--trace, specifying this multiple times will result in the trace being saved multiple times.h]hSaves trace output, optionally taking a filename. Alternative to -t/--trace. Note that nlike -t/--trace, specifying this multiple times will result in the trace being saved multiple times.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKHhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(h*signal,num=,pid=* Sends signal to process. "parent" might be specified in place of pid to target the parent process of rtla. h](h)}(h*signal,num=,pid=*h]j4)}(hjh]hsignal,num=,pid=}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubah}(h]h ]h"]h$]h&]uh1hhjhKLhjubh)}(hjSends signal to process. "parent" might be specified in place of pid to target the parent process of rtla.h]hnSends signal to process. “parent” might be specified in place of pid to target the parent process of rtla.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKNhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(h2*shell,command=* Execute shell command. h](h)}(h*shell,command=*h]j4)}(hjh]hshell,command=}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubah}(h]h ]h"]h$]h&]uh1hhjhKQhjubh)}(hExecute shell command.h]hExecute shell command.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKShjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hM*continue* Continue tracing after actions are executed instead of stopping. h](h)}(h *continue*h]j4)}(hj h]hcontinue}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubah}(h]h ]h"]h$]h&]uh1hhjhKUhj ubh)}(h@Continue tracing after actions are executed instead of stopping.h]h@Continue tracing after actions are executed instead of stopping.}(hj- hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKWhj ubeh}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]bullet-uh1j~hjhKFhj,ubh)}(hExample:h]hExample:}(hjI hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKYhj,ubh)}(h$ rtla timerlat -T 20 --on-threshold trace --on-threshold shell,command="grep ipi_send timerlat_trace.txt" --on-threshold signal,num=2,pid=parenth]h$ rtla timerlat -T 20 --on-threshold trace --on-threshold shell,command=”grep ipi_send timerlat_trace.txt” --on-threshold signal,num=2,pid=parent}(hjW hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhK[hj,ubh)}(hThis will save a trace with the default filename "timerlat_trace.txt", print its lines that contain the text "ipi_send" on standard output, and send signal 2 (SIGINT) to the parent process.h]hThis will save a trace with the default filename “timerlat_trace.txt”, print its lines that contain the text “ipi_send” on standard output, and send signal 2 (SIGINT) to the parent process.}(hje hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhK_hj,ubh)}(hPerformance Considerations:h]hPerformance Considerations:}(hjs hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKchj,ubh)}(hXFor time-sensitive actions, it is recommended to run **rtla timerlat** with BPF support and RT priority. Note that due to implementational limitations, actions might be delayed up to one second after tracing is stopped if BPF mode is not available or disabled.h](h5For time-sensitive actions, it is recommended to run }(hj hhhNhNubj )}(h**rtla timerlat**h]h rtla timerlat}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh with BPF support and RT priority. Note that due to implementational limitations, actions might be delayed up to one second after tracing is stopped if BPF mode is not available or disabled.}(hj hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKehj,ubeh}(h]h ]h"]h$]h&]uh1jhjhK=hjhhubh)}(h**--on-end** *action*h](j )}(h **--on-end**h]h--on-end}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }(hj hhhNhNubj4)}(h*action*h]haction}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubeh}(h]h ]h"]h$]h&]uh1hhjhKjhjhhubj)}(hXDefines an action to be executed at the end of **rtla timerlat** tracing. Multiple --on-end actions can be specified, and they will be executed in the order they are provided. If any action fails, subsequent actions in the list will not be executed. See the documentation for **--on-threshold** for the list of supported actions, with the exception that *continue* has no effect. Example: $ rtla timerlat -d 5s --on-end trace This runs rtla timerlat with default options and save trace output at the end. h](h)}(hIDefines an action to be executed at the end of **rtla timerlat** tracing.h](h/Defines an action to be executed at the end of }(hj hhhNhNubj )}(h**rtla timerlat**h]h rtla timerlat}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh tracing.}(hj hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKlhj ubh)}(hMultiple --on-end actions can be specified, and they will be executed in the order they are provided. If any action fails, subsequent actions in the list will not be executed.h]hMultiple --on-end actions can be specified, and they will be executed in the order they are provided. If any action fails, subsequent actions in the list will not be executed.}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKnhj ubh)}(hSee the documentation for **--on-threshold** for the list of supported actions, with the exception that *continue* has no effect.h](hSee the documentation for }(hj hhhNhNubj )}(h**--on-threshold**h]h--on-threshold}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh< for the list of supported actions, with the exception that }(hj hhhNhNubj4)}(h *continue*h]hcontinue}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubh has no effect.}(hj hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKrhj ubh)}(hExample:h]hExample:}(hj5 hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKuhj ubh)}(h$$ rtla timerlat -d 5s --on-end traceh]h$$ rtla timerlat -d 5s --on-end trace}(hjC hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKwhj ubh)}(hNThis runs rtla timerlat with default options and save trace output at the end.h]hNThis runs rtla timerlat with default options and save trace output at the end.}(hjQ hhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKyhj ubeh}(h]h ]h"]h$]h&]uh1jhjhKlhjhhubh)}(h**-b**, **--bucket-size** *N*h](j )}(h**-b**h]h-b}(hji hhhNhNubah}(h]h ]h"]h$]h&]uh1jhje ubh, }(hje hhhNhNubj )}(h**--bucket-size**h]h --bucket-size}(hj{ hhhNhNubah}(h]h ]h"]h$]h&]uh1jhje ubh }(hje hhhNhNubj4)}(h*N*h]hN}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hje ubeh}(h]h ]h"]h$]h&]uh1hh0Documentation/tools/rtla/common_hist_options.rsthKhjhhubj)}(h-Set the histogram bucket size (default *1*). h]h)}(h,Set the histogram bucket size (default *1*).h](h'Set the histogram bucket size (default }(hj hhhNhNubj4)}(h*1*h]h1}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubh).}(hj hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hKhj ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h**-E**, **--entries** *N*h](j )}(h**-E**h]h-E}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh, }(hj hhhNhNubj )}(h **--entries**h]h --entries}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }(hj hhhNhNubj4)}(h*N*h]hN}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubeh}(h]h ]h"]h$]h&]uh1hhj hKhjhhubj)}(h:Set the number of entries of the histogram (default 256). h]h)}(h9Set the number of entries of the histogram (default 256).h]h9Set the number of entries of the histogram (default 256).}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hKhj ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h**--no-header**h]j )}(hj" h]h --no-header}(hj$ hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubah}(h]h ]h"]h$]h&]uh1hhj hK hjhhubj)}(hDo not print header. h]h)}(hDo not print header.h]hDo not print header.}(hj; hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hK hj7 ubah}(h]h ]h"]h$]h&]uh1jhj hK hjhhubh)}(h**--no-summary**h]j )}(hjQ h]h --no-summary}(hjS hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjO ubah}(h]h ]h"]h$]h&]uh1hhj hK hjhhubj)}(hDo not print summary. h]h)}(hDo not print summary.h]hDo not print summary.}(hjj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hKhjf ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h**--no-index**h]j )}(hj h]h --no-index}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj~ ubah}(h]h ]h"]h$]h&]uh1hhj hKhjhhubj)}(hDo not print index. h]h)}(hDo not print index.h]hDo not print index.}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hKhj ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h**--with-zeros**h]j )}(hj h]h --with-zeros}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubah}(h]h ]h"]h$]h&]uh1hhj hKhjhhubj)}(hPrint zero only entries. h]h)}(hPrint zero only entries.h]hPrint zero only entries.}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hKhj ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h**-c**, **--cpus** *cpu-list*h](j )}(h**-c**h]h-c}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh, }(hj hhhNhNubj )}(h **--cpus**h]h--cpus}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }(hj hhhNhNubj4)}(h *cpu-list*h]hcpu-list}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubeh}(h]h ]h"]h$]h&]uh1hh+Documentation/tools/rtla/common_options.rsthKhjhhubj)}(hBSet the osnoise tracer to run the sample threads in the cpu-list. h]h)}(hASet the osnoise tracer to run the sample threads in the cpu-list.h]hASet the osnoise tracer to run the sample threads in the cpu-list.}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hKhj ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h&**-H**, **--house-keeping** *cpu-list*h](j )}(h**-H**h]h-H}(hj5 hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj1 ubh, }(hj1 hhhNhNubj )}(h**--house-keeping**h]h--house-keeping}(hjG hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj1 ubh }(hj1 hhhNhNubj4)}(h *cpu-list*h]hcpu-list}(hjY hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj1 ubeh}(h]h ]h"]h$]h&]uh1hhj hKhjhhubj)}(h5Run rtla control threads only on the given cpu-list. h]h)}(h4Run rtla control threads only on the given cpu-list.h]h4Run rtla control threads only on the given cpu-list.}(hjq hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hKhjm ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h&**-d**, **--duration** *time[s|m|h|d]*h](j )}(h**-d**h]h-d}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh, }(hj hhhNhNubj )}(h**--duration**h]h --duration}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }(hj hhhNhNubj4)}(h*time[s|m|h|d]*h]h time[s|m|h|d]}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubeh}(h]h ]h"]h$]h&]uh1hhj hK hjhhubj)}(h!Set the duration of the session. h]h)}(h Set the duration of the session.h]h Set the duration of the session.}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hK hj ubah}(h]h ]h"]h$]h&]uh1jhj hK hjhhubh)}(h**-D**, **--debug**h](j )}(h**-D**h]h-D}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh, }(hj hhhNhNubj )}(h **--debug**h]h--debug}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubeh}(h]h ]h"]h$]h&]uh1hhj hK hjhhubj)}(hPrint debug info. h]h)}(hPrint debug info.h]hPrint debug info.}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hKhj ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h**-e**, **--event** *sys:event*h](j )}(h**-e**h]h-e}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh, }(hj hhhNhNubj )}(h **--event**h]h--event}(hj1 hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }(hj hhhNhNubj4)}(h *sys:event*h]h sys:event}(hjC hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubeh}(h]h ]h"]h$]h&]uh1hhj hKhjhhubj)}(hEnable an event in the trace (**-t**) session. The argument can be a specific event, e.g., **-e** *sched:sched_switch*, or all events of a system group, e.g., **-e** *sched*. Multiple **-e** are allowed. It is only active when **-t** or **-a** are set. h]h)}(hEnable an event in the trace (**-t**) session. The argument can be a specific event, e.g., **-e** *sched:sched_switch*, or all events of a system group, e.g., **-e** *sched*. Multiple **-e** are allowed. It is only active when **-t** or **-a** are set.h](hEnable an event in the trace (}(hj[ hhhNhNubj )}(h**-t**h]h-t}(hjc hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj[ ubh7) session. The argument can be a specific event, e.g., }(hj[ hhhNhNubj )}(h**-e**h]h-e}(hju hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj[ ubh }(hj[ hhhNhNubj4)}(h*sched:sched_switch*h]hsched:sched_switch}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj[ ubh), or all events of a system group, e.g., }(hj[ hhhNhNubj )}(h**-e**h]h-e}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj[ ubh }hj[ sbj4)}(h*sched*h]hsched}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj[ ubh . Multiple }(hj[ hhhNhNubj )}(h**-e**h]h-e}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj[ ubh% are allowed. It is only active when }(hj[ hhhNhNubj )}(h**-t**h]h-t}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj[ ubh or }(hj[ hhhNhNubj )}(h**-a**h]h-a}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj[ ubh are set.}(hj[ hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hKhjW ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubh)}(h**--filter** **h](j )}(h **--filter**h]h--filter}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh }(hj hhhNhNubj4)}(h **h]h}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj ubeh}(h]h ]h"]h$]h&]uh1hhj hKhjhhubj)}(hFilter the previous **-e** *sys:event* event with **. For further information about event filtering see https://www.kernel.org/doc/html/latest/trace/events.html#event-filtering. h]h)}(hFilter the previous **-e** *sys:event* event with **. For further information about event filtering see https://www.kernel.org/doc/html/latest/trace/events.html#event-filtering.h](hFilter the previous }(hj-hhhNhNubj )}(h**-e**h]h-e}(hj5hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj-ubh }(hj-hhhNhNubj4)}(h *sys:event*h]h sys:event}(hjGhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj-ubh event with }(hj-hhhNhNubj4)}(h **h]h}(hjYhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj-ubh4. For further information about event filtering see }(hj-hhhNhNubh reference)}(hHhttps://www.kernel.org/doc/html/latest/trace/events.html#event-filteringh]hHhttps://www.kernel.org/doc/html/latest/trace/events.html#event-filtering}(hjmhhhNhNubah}(h]h ]h"]h$]h&]refurijouh1jkhj-ubh.}(hj-hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hKhj)ubah}(h]h ]h"]h$]h&]uh1jhj hKhjhhubj)}(hhh]j)}(hXj**--trigger** ** Enable a trace event trigger to the previous **-e** *sys:event*. If the *hist:* trigger is activated, the output histogram will be automatically saved to a file named *system_event_hist.txt*. For example, the command: rtla -t -e osnoise:irq_noise --trigger="hist:key=desc,duration/1000:sort=desc,duration/1000:vals=hitcount" Will automatically save the content of the histogram associated to *osnoise:irq_noise* event in *osnoise_irq_noise_hist.txt*. For further information about event trigger see https://www.kernel.org/doc/html/latest/trace/events.html#event-triggers. h](j)}(h**--trigger** **h](j )}(h **--trigger**h]h --trigger}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h **h]h }(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1jhj hK"hjubj )}(hhh](h)}(hEnable a trace event trigger to the previous **-e** *sys:event*. If the *hist:* trigger is activated, the output histogram will be automatically saved to a file named *system_event_hist.txt*. For example, the command:h](h-Enable a trace event trigger to the previous }(hjhhhNhNubj )}(h**-e**h]h-e}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h *sys:event*h]h sys:event}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh . If the }(hjhhhNhNubj4)}(h*hist:*h]hhist:}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubhX trigger is activated, the output histogram will be automatically saved to a file named }(hjhhhNhNubj4)}(h*system_event_hist.txt*h]hsystem_event_hist.txt}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh. For example, the command:}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hKhjubh)}(h{rtla -t -e osnoise:irq_noise --trigger="hist:key=desc,duration/1000:sort=desc,duration/1000:vals=hitcount"h]hrtla -t -e osnoise:irq_noise --trigger=”hist:key=desc,duration/1000:sort=desc,duration/1000:vals=hitcount”}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hKhjubh)}(h}Will automatically save the content of the histogram associated to *osnoise:irq_noise* event in *osnoise_irq_noise_hist.txt*.h](hCWill automatically save the content of the histogram associated to }(hj$hhhNhNubj4)}(h*osnoise:irq_noise*h]hosnoise:irq_noise}(hj,hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj$ubh event in }(hj$hhhNhNubj4)}(h*osnoise_irq_noise_hist.txt*h]hosnoise_irq_noise_hist.txt}(hj>hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hj$ubh.}(hj$hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK hjubh)}(hxFor further information about event trigger see https://www.kernel.org/doc/html/latest/trace/events.html#event-triggers.h](h0For further information about event trigger see }(hjVhhhNhNubjl)}(hGhttps://www.kernel.org/doc/html/latest/trace/events.html#event-triggersh]hGhttps://www.kernel.org/doc/html/latest/trace/events.html#event-triggers}(hj^hhhNhNubah}(h]h ]h"]h$]h&]refurij`uh1jkhjVubh.}(hjVhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK"hjubeh}(h]h ]h"]h$]h&]uh1j hjubeh}(h]h ]h"]h$]h&]uh1jhj hK"hjubah}(h]h ]h"]h$]h&]uh1jhjhhhj hNubh)}(h>**-P**, **--priority** *o:prio|r:prio|f:prio|d:runtime:period*h](j )}(h**-P**h]h-P}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh, }(hjhhhNhNubj )}(h**--priority**h]h --priority}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h'*o:prio|r:prio|f:prio|d:runtime:period*h]h%o:prio|r:prio|f:prio|d:runtime:period}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1hhj hK$hjhhubj)}(hX@Set scheduling parameters to the osnoise tracer threads, the format to set the priority are: - *o:prio* - use SCHED_OTHER with *prio*; - *r:prio* - use SCHED_RR with *prio*; - *f:prio* - use SCHED_FIFO with *prio*; - *d:runtime[us|ms|s]:period[us|ms|s]* - use SCHED_DEADLINE with *runtime* and *period* in nanoseconds. h](h)}(h\Set scheduling parameters to the osnoise tracer threads, the format to set the priority are:h]h\Set scheduling parameters to the osnoise tracer threads, the format to set the priority are:}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hK&hjubj)}(hhh](j)}(h'*o:prio* - use SCHED_OTHER with *prio*;h]h)}(hjh](j4)}(h*o:prio*h]ho:prio}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh - use SCHED_OTHER with }(hjhhhNhNubj4)}(h*prio*h]hprio}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh;}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK(hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(h$*r:prio* - use SCHED_RR with *prio*;h]h)}(hjh](j4)}(h*r:prio*h]hr:prio}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh - use SCHED_RR with }(hjhhhNhNubj4)}(h*prio*h]hprio}(hj*hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh;}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK)hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(h&*f:prio* - use SCHED_FIFO with *prio*;h]h)}(hjJh](j4)}(h*f:prio*h]hf:prio}(hjOhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjLubh - use SCHED_FIFO with }(hjLhhhNhNubj4)}(h*prio*h]hprio}(hjahhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjLubh;}(hjLhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK*hjHubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hf*d:runtime[us|ms|s]:period[us|ms|s]* - use SCHED_DEADLINE with *runtime* and *period* in nanoseconds. h]h)}(he*d:runtime[us|ms|s]:period[us|ms|s]* - use SCHED_DEADLINE with *runtime* and *period* in nanoseconds.h](j4)}(h$*d:runtime[us|ms|s]:period[us|ms|s]*h]h"d:runtime[us|ms|s]:period[us|ms|s]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh - use SCHED_DEADLINE with }(hjhhhNhNubj4)}(h *runtime*h]hruntime}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh and }(hjhhhNhNubj4)}(h*period*h]hperiod}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh in nanoseconds.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK+hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]jG jH uh1j~hj hK(hjubeh}(h]h ]h"]h$]h&]uh1jhj hK&hjhhubh)}(h **-C**, **--cgroup**\[*=cgroup*]h](j )}(h**-C**h]h-C}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh, }(hjhhhNhNubj )}(h **--cgroup**h]h--cgroup}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh[}(hjhhhNhNubj4)}(h *=cgroup*h]h=cgroup}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh]}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK-hjhhubj)}(hSet a *cgroup* to the tracer's threads. If the **-C** option is passed without arguments, the tracer's thread will inherit **rtla**'s *cgroup*. Otherwise, the threads will be placed on the *cgroup* passed to the option. h]h)}(hSet a *cgroup* to the tracer's threads. If the **-C** option is passed without arguments, the tracer's thread will inherit **rtla**'s *cgroup*. Otherwise, the threads will be placed on the *cgroup* passed to the option.h](hSet a }(hjhhhNhNubj4)}(h*cgroup*h]hcgroup}(hj!hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh# to the tracer’s threads. If the }(hjhhhNhNubj )}(h**-C**h]h-C}(hj3hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubhH option is passed without arguments, the tracer’s thread will inherit }(hjhhhNhNubj )}(h**rtla**h]hrtla}(hjEhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh’s }(hjhhhNhNubj4)}(h*cgroup*h]hcgroup}(hjWhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh/. Otherwise, the threads will be placed on the }(hjhhhNhNubj4)}(h*cgroup*h]hcgroup}(hjihhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh passed to the option.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK/hjubah}(h]h ]h"]h$]h&]uh1jhj hK/hjhhubh)}(h**--warm-up** *s*h](j )}(h **--warm-up**h]h --warm-up}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*s*h]hs}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1hhj hK1hjhhubj)}(hAfter starting the workload, let it run for *s* seconds before starting collecting the data, allowing the system to warm-up. Statistical data generated during warm-up is discarded. h]h)}(hAfter starting the workload, let it run for *s* seconds before starting collecting the data, allowing the system to warm-up. Statistical data generated during warm-up is discarded.h](h,After starting the workload, let it run for }(hjhhhNhNubj4)}(h*s*h]hs}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh seconds before starting collecting the data, allowing the system to warm-up. Statistical data generated during warm-up is discarded.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhj hK3hjubah}(h]h ]h"]h$]h&]uh1jhj hK3hjhhubj)}(hhh]j)}(h]**--trace-buffer-size** *kB* Set the per-cpu trace buffer size in kB for the tracing output. h](j)}(h**--trace-buffer-size** *kB*h](j )}(h**--trace-buffer-size**h]h--trace-buffer-size}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubj4)}(h*kB*h]hkB}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubeh}(h]h ]h"]h$]h&]uh1jhj hK6hjubj )}(hhh]h)}(h?Set the per-cpu trace buffer size in kB for the tracing output.h]h?Set the per-cpu trace buffer size in kB for the tracing output.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hK6hj ubah}(h]h ]h"]h$]h&]uh1j hjubeh}(h]h ]h"]h$]h&]uh1jhj hK6hjubah}(h]h ]h"]h$]h&]uh1jhjhhhj hNubh)}(h**-h**, **--help**h](j )}(h**-h**h]h-h}(hj3hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj/ubh, }(hj/hhhNhNubj )}(h **--help**h]h--help}(hjEhhhNhNubah}(h]h ]h"]h$]h&]uh1jhj/ubeh}(h]h ]h"]h$]h&]uh1hhj hK8hjhhubj)}(hPrint help menu. h]h)}(hPrint help menu.h]hPrint help menu.}(hj]hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj hK:hjYubah}(h]h ]h"]h$]h&]uh1jhj hK:hjhhubh)}(h**--dump-tasks**h]j )}(hjsh]h --dump-tasks}(hjuhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjqubah}(h]h ]h"]h$]h&]uh1hh/Documentation/tools/rtla/common_timerlat_aa.rsthKhjhhubj)}(hUprints the task running on all CPUs if stop conditions are met (depends on !--no-aa) h]h)}(hTprints the task running on all CPUs if stop conditions are met (depends on !--no-aa)h]hTprints the task running on all CPUs if stop conditions are met (depends on !--no-aa)}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKhjubah}(h]h ]h"]h$]h&]uh1jhjhKhjhhubh)}(h **--no-aa**h]j )}(hjh]h--no-aa}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubah}(h]h ]h"]h$]h&]uh1hhjhKhjhhubj)}(h8disable auto-analysis, reducing rtla timerlat cpu usage h]h)}(h7disable auto-analysis, reducing rtla timerlat cpu usageh]h7disable auto-analysis, reducing rtla timerlat cpu usage}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhKhjubah}(h]h ]h"]h$]h&]uh1jhjhKhjhhubeh}(h]optionsah ]h"]optionsah$]h&]uh1hhhhhhhhKubh)}(hhh](h)}(hEXAMPLEh]hEXAMPLE}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhhhhhK#ubh)}(hXIn the example below, **rtla timerlat hist** is set to run for *10* minutes, in the cpus *0-4*, *skipping zero* only lines. Moreover, **rtla timerlat hist** will change the priority of the *timerlat* threads to run under *SCHED_DEADLINE* priority, with a *100us* runtime every *1ms* period. The *1ms* period is also passed to the *timerlat* tracer. Auto-analysis is disabled to reduce overhead ::h](hIn the example below, }(hjhhhNhNubj )}(h**rtla timerlat hist**h]hrtla timerlat hist}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh is set to run for }(hjhhhNhNubj4)}(h*10*h]h10}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh minutes, in the cpus }(hjhhhNhNubj4)}(h*0-4*h]h0-4}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh, }(hjhhhNhNubj4)}(h*skipping zero*h]h skipping zero}(hj'hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh only lines. Moreover, }(hjhhhNhNubj )}(h**rtla timerlat hist**h]hrtla timerlat hist}(hj9hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh! will change the priority of the }(hjhhhNhNubj4)}(h *timerlat*h]htimerlat}(hjKhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh threads to run under }(hjhhhNhNubj4)}(h*SCHED_DEADLINE*h]hSCHED_DEADLINE}(hj]hhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh priority, with a }(hjhhhNhNubj4)}(h*100us*h]h100us}(hjohhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh runtime every }(hjhhhNhNubj4)}(h*1ms*h]h1ms}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh period. The }(hjhhhNhNubj4)}(h*1ms*h]h1ms}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh period is also passed to the }(hjhhhNhNubj4)}(h *timerlat*h]htimerlat}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh5 tracer. Auto-analysis is disabled to reduce overhead}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhK$hjhhubh literal_block)}(hX[root@alien ~]# timerlat hist -d 10m -c 0-4 -P d:100us:1ms -p 1000 --no-aa # RTLA timerlat histogram # Time unit is microseconds (us) # Duration: 0 00:10:00 Index IRQ-000 Thr-000 IRQ-001 Thr-001 IRQ-002 Thr-002 IRQ-003 Thr-003 IRQ-004 Thr-004 0 276489 0 206089 0 466018 0 481102 0 205546 0 1 318327 35487 388149 30024 94531 48382 83082 71078 388026 55730 2 3282 122584 4019 126527 28231 109012 23311 89309 4568 98739 3 940 11815 837 9863 6209 16227 6895 17196 910 9780 4 444 17287 424 11574 2097 38443 2169 36736 462 13476 5 206 43291 255 25581 1223 101908 1304 101137 236 28913 6 132 101501 96 64584 635 213774 757 215471 99 73453 7 74 169347 65 124758 350 57466 441 53639 69 148573 8 53 85183 31 156751 229 9052 306 9026 39 139907 9 22 10387 12 42762 161 2554 225 2689 19 26192 10 13 1898 8 5770 114 1247 128 1405 13 3772 11 9 560 9 924 71 686 76 765 8 713 12 4 256 2 360 50 411 64 474 3 278 13 2 167 2 172 43 256 53 350 4 180 14 1 88 1 116 15 198 42 223 0 115 15 2 63 3 94 11 139 20 150 0 58 16 2 37 0 56 5 78 10 102 0 39 17 0 18 0 28 4 57 8 80 0 15 18 0 8 0 17 2 50 6 56 0 12 19 0 9 0 5 0 19 0 48 0 18 20 0 4 0 8 0 11 2 27 0 4 21 0 2 0 3 1 9 1 18 0 6 22 0 1 0 3 1 7 0 3 0 5 23 0 2 0 4 0 2 0 7 0 2 24 0 2 0 2 1 3 0 3 0 5 25 0 0 0 1 0 1 0 1 0 3 26 0 1 0 0 0 2 0 2 0 0 27 0 0 0 3 0 1 0 0 0 1 28 0 0 0 3 0 0 0 1 0 0 29 0 0 0 2 0 2 0 1 0 3 30 0 1 0 0 0 0 0 0 0 0 31 0 1 0 0 0 0 0 2 0 2 32 0 0 0 1 0 2 0 0 0 0 33 0 0 0 2 0 0 0 0 0 1 34 0 0 0 0 0 0 0 0 0 2 35 0 1 0 1 0 0 0 0 0 1 36 0 1 0 0 0 1 0 1 0 0 37 0 0 0 1 0 0 0 0 0 0 40 0 0 0 0 0 1 0 1 0 0 41 0 0 0 0 0 0 0 0 0 1 42 0 0 0 0 0 0 0 0 0 1 44 0 0 0 0 0 1 0 0 0 0 46 0 0 0 0 0 0 0 1 0 0 47 0 0 0 0 0 0 0 0 0 1 50 0 0 0 0 0 0 0 0 0 1 54 0 0 0 1 0 0 0 0 0 0 58 0 0 0 1 0 0 0 0 0 0 over: 0 0 0 0 0 0 0 0 0 0 count: 600002 600002 600002 600002 600002 600002 600002 600002 600002 600002 min: 0 1 0 1 0 1 0 1 0 1 avg: 0 5 0 5 0 4 0 4 0 5 max: 16 36 15 58 24 44 21 46 13 503h]hX[root@alien ~]# timerlat hist -d 10m -c 0-4 -P d:100us:1ms -p 1000 --no-aa # RTLA timerlat histogram # Time unit is microseconds (us) # Duration: 0 00:10:00 Index IRQ-000 Thr-000 IRQ-001 Thr-001 IRQ-002 Thr-002 IRQ-003 Thr-003 IRQ-004 Thr-004 0 276489 0 206089 0 466018 0 481102 0 205546 0 1 318327 35487 388149 30024 94531 48382 83082 71078 388026 55730 2 3282 122584 4019 126527 28231 109012 23311 89309 4568 98739 3 940 11815 837 9863 6209 16227 6895 17196 910 9780 4 444 17287 424 11574 2097 38443 2169 36736 462 13476 5 206 43291 255 25581 1223 101908 1304 101137 236 28913 6 132 101501 96 64584 635 213774 757 215471 99 73453 7 74 169347 65 124758 350 57466 441 53639 69 148573 8 53 85183 31 156751 229 9052 306 9026 39 139907 9 22 10387 12 42762 161 2554 225 2689 19 26192 10 13 1898 8 5770 114 1247 128 1405 13 3772 11 9 560 9 924 71 686 76 765 8 713 12 4 256 2 360 50 411 64 474 3 278 13 2 167 2 172 43 256 53 350 4 180 14 1 88 1 116 15 198 42 223 0 115 15 2 63 3 94 11 139 20 150 0 58 16 2 37 0 56 5 78 10 102 0 39 17 0 18 0 28 4 57 8 80 0 15 18 0 8 0 17 2 50 6 56 0 12 19 0 9 0 5 0 19 0 48 0 18 20 0 4 0 8 0 11 2 27 0 4 21 0 2 0 3 1 9 1 18 0 6 22 0 1 0 3 1 7 0 3 0 5 23 0 2 0 4 0 2 0 7 0 2 24 0 2 0 2 1 3 0 3 0 5 25 0 0 0 1 0 1 0 1 0 3 26 0 1 0 0 0 2 0 2 0 0 27 0 0 0 3 0 1 0 0 0 1 28 0 0 0 3 0 0 0 1 0 0 29 0 0 0 2 0 2 0 1 0 3 30 0 1 0 0 0 0 0 0 0 0 31 0 1 0 0 0 0 0 2 0 2 32 0 0 0 1 0 2 0 0 0 0 33 0 0 0 2 0 0 0 0 0 1 34 0 0 0 0 0 0 0 0 0 2 35 0 1 0 1 0 0 0 0 0 1 36 0 1 0 0 0 1 0 1 0 0 37 0 0 0 1 0 0 0 0 0 0 40 0 0 0 0 0 1 0 1 0 0 41 0 0 0 0 0 0 0 0 0 1 42 0 0 0 0 0 0 0 0 0 1 44 0 0 0 0 0 1 0 0 0 0 46 0 0 0 0 0 0 0 1 0 0 47 0 0 0 0 0 0 0 0 0 1 50 0 0 0 0 0 0 0 0 0 1 54 0 0 0 1 0 0 0 0 0 0 58 0 0 0 1 0 0 0 0 0 0 over: 0 0 0 0 0 0 0 0 0 0 count: 600002 600002 600002 600002 600002 600002 600002 600002 600002 600002 min: 0 1 0 1 0 1 0 1 0 1 avg: 0 5 0 5 0 4 0 4 0 5 max: 16 36 15 58 24 44 21 46 13 50}hjsbah}(h]h ]h"]h$]h&] xml:spacepreserveuh1jhhhK+hjhhubeh}(h]exampleah ]h"]exampleah$]h&]uh1hhhhhhhhK#ubh)}(hhh](h)}(hSEE ALSOh]hSEE ALSO}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhhhhhKfubh)}(h0**rtla-timerlat**\(1), **rtla-timerlat-top**\(1)h](j )}(h**rtla-timerlat**h]h rtla-timerlat}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh(1), }(hjhhhNhNubj )}(h**rtla-timerlat-top**h]hrtla-timerlat-top}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh(1)}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKghjhhubh)}(hd*timerlat* tracer documentation: h](j4)}(h *timerlat*h]htimerlat}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j3hjubh tracer documentation: <}(hjhhhNhNubjl)}(hAhttps://www.kernel.org/doc/html/latest/trace/timerlat-tracer.htmlh]hAhttps://www.kernel.org/doc/html/latest/trace/timerlat-tracer.html}(hj,hhhNhNubah}(h]h ]h"]h$]h&]refurij.uh1jkhjubh>}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKihjhhubeh}(h]see-alsoah ]h"]see alsoah$]h&]uh1hhhhhhhhKfubh)}(hhh](h)}(hAUTHORh]hAUTHOR}(hjPhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjMhhhhhKlubh)}(h:Written by Daniel Bristot de Oliveira h](h'Written by Daniel Bristot de Oliveira <}(hj^hhhNhNubjl)}(hbristot@kernel.orgh]hbristot@kernel.org}(hjfhhhNhNubah}(h]h ]h"]h$]h&]refurimailto:bristot@kernel.orguh1jkhj^ubh>}(hj^hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKmhjMhhubhcomment)}(h SPDX-License-Identifier: GPL-2.0h]h SPDX-License-Identifier: GPL-2.0}hjsbah}(h]h ]h"]h$]h&]jjuh1jhjMhhh,Documentation/tools/rtla/common_appendix.rsthKubeh}(h]authorah ]h"]authorah$]h&]uh1hhhhhhhhKlubh)}(hhh](h)}(h EXIT STATUSh]h EXIT STATUS}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhhhjhKubj)}(h0 Passed: the test did not hit the stop tracing condition 1 Error: invalid argument 2 Failed: the test hit the stop tracing conditionh]h0 Passed: the test did not hit the stop tracing condition 1 Error: invalid argument 2 Failed: the test hit the stop tracing condition}hjsbah}(h]h ]h"]h$]h&]jjuh1jhjhKhjhhubeh}(h] exit-statusah ]h"] exit statusah$]h&]uh1hhhhhhjhKubh)}(hhh](h)}(hREPORTING BUGSh]hREPORTING BUGS}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhhhjhK ubh)}(hUReport bugs to and h](hReport bugs to <}(hjhhhNhNubjl)}(hlinux-kernel@vger.kernel.orgh]hlinux-kernel@vger.kernel.org}(hjhhhNhNubah}(h]h ]h"]h$]h&]refuri#mailto:linux-kernel@vger.kernel.orguh1jkhjubh> and <}(hjhhhNhNubjl)}(h!linux-trace-devel@vger.kernel.orgh]h!linux-trace-devel@vger.kernel.org}(hjhhhNhNubah}(h]h ]h"]h$]h&]refuri(mailto:linux-trace-devel@vger.kernel.orguh1jkhjubh>}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhjhhubeh}(h]reporting-bugsah ]h"]reporting bugsah$]h&]uh1hhhhhhjhK ubh)}(hhh](h)}(hLICENSEh]hLICENSE}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhhhjhKubh)}(h6**rtla** is Free Software licensed under the GNU GPLv2h](j )}(h**rtla**h]hrtla}(hj$hhhNhNubah}(h]h ]h"]h$]h&]uh1jhj ubh. is Free Software licensed under the GNU GPLv2}(hj hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhjhKhjhhubeh}(h]licenseah ]h"]licenseah$]h&]uh1hhhhhhjhKubh)}(hhh](h)}(hCOPYINGh]hCOPYING}(hjGhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjDhhhjhKubh)}(hwCopyright \(C) 2021 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).h]hwCopyright (C) 2021 Red Hat, Inc. 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