Monitor Result

Check whether performance statistics log files are generated.

Check whether plugin performance statistics logs are generated in the directory specified by ps_log_dir.

If ps_interval_time is set to 6, the program generates end-to-end log files, single-plugin log files, and throughput log files 6 seconds after the program is started.

If ps_queue_size_interval_time is set to 50 and ps_queue_size_times is set to 100, the program generates a queue length log file 50 x 100 milliseconds (5 seconds) after startup. For details, see the following figure.

**Table 1** File types
File Name	File Type
performance—statistics.log.e2e.20210329-183958.877032	End-to-end log file
performance—statistics.log.plugin.20210329-183958.877905	Single plugin log file
performance—statistics.log.queue.20210329-183957.893092	Queue length log file
performance—statistics.log.tpr.20210329-183958.883263	Throughput log file

Check the end-to-end log files.

The following is an example of an end-to-end log file:

{"average":"45138","frequency":"3","maxTime":"73058","minTime":"30511","streamName":"classification+detection","totalTime":"135416","type":"e2e","updateTime":"2021-03-29 20:13:59.717927"}

**Table 2** Log parameters
Parameter	Description
average	Average end-to-end duration (µs).
frequency	Number of end-to-end statistics collection times.
maxTime	Maximum end-to-end duration (µs).
minTime	Minimum end-to-end duration (µs).
streamName	Stream name in the pipeline.
totalTime	Total end-to-end duration (µs).
type	Statistics type. The end-to-end type is e2e.
updateTime	Time when the statistics are collected.

Check the log files of a single plugin.

The following is an example of a single plugin log file:

{"average":"18546","elementName":"mxpi_modelinfer0","factory":"mxpi_modelinfer","frequency":"3","maxTime":"18608","minTime":"18493","streamName":"classification+detection","totalTime":"55638","type":"plugin","updateTime":"2021-03-29 20:13:59.720010"}

**Table 3** Log parameters
Parameter	Description
average	Average duration of a single plugin (µs).
elementName	Plugin element name.
factory	Plugin type.
frequency	Number of inference times processed by the plugin.
maxTime	Maximum duration (µs).
minTime	Minimum duration (µs).
streamName	Stream name in the pipeline.
totalTime	Total duration of a single plugin (µs).
type	Statistical type. For a single plugin, the statistical type is plugin. For model inference, the statistical type is modelInference. For post-processing, the statistical type is postProcessor.
updateTime	Time when the statistics are collected.

Check the throughput log files.

The following is an example of a throughput log file:

{"streamName":"classification+detection","throughput":3,"throughputRate":0.5,"type":"throughputRate","updateTime":"2021-03-29 20:13:59.721819"}

**Table 4** Log parameters
Parameter	Description
streamName	Stream name in the pipeline.
throughput	Throughput
throughputRate	Throughput rate
type	Statistical type. The statistical type of throughput is throughputRate.
updateTime	Time when the statistics are collected.

Check the queue length log files.

The following is an example of a queue length log file:

The queue length is always displayed as 0. Even during the inference process, the collected queue length is still 0. This indicates that the data is stored in the queue for a very short time during the inference process and is quickly obtained by the downstream plugin. As a result, the obtained queue length is 0. The queue length is not 0 only when congestion occurs in the inference process and data is stored in the queue.

{"curSize":0,"elementName":"queue0","intervalTime":50000,"maxSize":0,"maxSizeBuffers":200,"recentSize":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"streamName":"classification+detection","type":"queueSize","updateTime":"2021-03-29 20:14:45.953312"}

**Table 5** Log parameters
Parameter	Description
curSize	Current queue length, that is, the last value in the recentSize list.
elementName	Plugin element name.
intervalTime	Statistics collection interval, which is the same as the value of ps_queue_size_interval_time.
maxSize	Maximum queue length during the statistics collection period, that is, the maximum value in the recentSize list.
maxSizeBuffers	Total queue length.
recentSize	List of queue lengths collected ps_queue_size_times at an interval of ps_queue_size_interval_time, in milliseconds.
streamName	Stream name in the pipeline.
type	Statistics type. The statistical type of the queue length is queueSize.
updateTime	Time when the statistics are collected.

Parent topic: Plugin Performance Statistics Tool