pyjp is a tool that analyzes JProfiler HTML reports. It generates additional
information, including:
- level: the level of each method in the invocation chain
- invocation time: the total time spent in any direct children methods
The level of a method indicates its depth in the call stack, with higher-level methods having lower levels.
By providing this information, pyjp allows users to better understand the performance of
various methods in their application and identify performance bottlenecks and optimization opportunities.
For example, suppose the invocation chain listed below:
| Seq | Level | total_time | formular of invocation_time | invocation time | time(elapsed by method itself) |
|---|---|---|---|---|---|
| 1 | 3 | 30,000 | seq1.total_time | 30,000 | 0 |
| 2 | 1 | 300,000 | seq3.total_time | 200,000 | 10,000 |
| 3 | 3 | 200,000 | seq4.total_time + seq6.total_time | 150,000 | 50,000 |
| 4 | 4 | 30,000 | seq5.total_time | 20,000 | 10,000 |
| 5 | 5 | 20,000 | seq5.total_time | 20,000 | 0 |
| 6 | 4 | 120,000 | seq7.total_time | 70,000 | 50,000 |
| 7 | 7 | 70,000 | seq8.total_time | 60,000 | 10,000 |
| 8 | 8 | 10,000 | seq8.total_time | 10,000 | 0 |
The invocation time for a method is calculated by adding up the total time spent in each direct child method. Once we have the invocation time, we can calculate the running time of the method itself. In this way, we can better understand the performance of a given method and its overall impact on the application.
- Install by
pipor download it from GitHub and manually install:
pip install pyjp
or download from https://github.com/sharework-cn/pyjp/releases, and then use pip to install
2. Run pyjp --help for the instruction:
pyjp --help
Usage: pyjp [OPTIONS] SOURCE
A tool to parse the exported HTML JProfile report, it adds level and
invocation time of children methods, which is useful to get the elapsed time
by the calling method itself.
Options:
-d, --destination TEXT The file name to be parsed, default to the
source_file.csv with the same folder
-p, --pattern TEXT The regex pattern to extract information from the
line text, supported named variables are: time,
percentage, average_time, events, method
--decode TEXT Decode used to read the file [default: utf-8]
--overwrite Overwrite an exist file, default is False
--interval INTEGER RANGE The interval to print in progress message
[2<=x<=50000]
--help Show this message and exit.