Lines Matching refs:sampling
6 …e analysis tool. It uses the performance monitoring unit (PMU) to count sampling events and collec…
13 perf provides two working modes: counting mode and sampling mode.
15 In counting mode, perf collects only the number of event occurrences and duration. In sampling mode…
26 …ing or stopping sampling| **LOS_PerfInit**: initializes perf.<br>**LOS_PerfStart**: starts samplin…
27 | Configuring perf sampling events| **LOS_PerfConfig**: sets the event type and sampling period. |
28 | Reading sampling data| **LOS_PerfDataRead**: reads the sampling data. |
29 | Registering a hook for the sampling data buffer| **LOS_PerfNotifyHookReg**: registers the hook to…
31 **PerfConfigAttr** is the structure of the perf sampling event. For details, see [kernel\include\lo…
33 The sampling data buffer is a circular buffer, and only the region that has been read in the buffer…
77 …SIZE | Perf Sampling Buffer Size | Size of the buffer used for perf sampling.| INT |
85 …- Working modes: counting mode (counts only the number of event occurrences) and sampling mode (co…
87 …the code to be sampled. The input parameter **sectionId** specifies different sampling session IDs.
91 5. Call **LOS_PerfDataRead** to read the sampling data and use IDE to analyze the collected data.
100 2. Configure sampling events.
262 - For the sampling mode, the address and length of the sampled data will be displayed after perf is…