StopWatch is a fast and simple utility for measuring code performance with a consistent API for multiple languages. The idea was born out of the need to do benchmarking over the same code-block with the need to understand the average (mean), min, max, standard deviation, variance, count, and last execution time between multiple iterations.
Example
| Key | count | min | max | mean | variance | stdDev | lastExecutionTime |
|---|---|---|---|---|---|---|---|
| ExampleClass.method1() | 3 | 0 | 3 | 1 | 2 | 1.414213 | 3 |
| ExampleClass.method2() | 3 | 0 | 8 | 3 | 12.66666 | 3.559026 | 8 |
| ExampleClass.method3() | 3 | 0 | 2 | 0.666666 | 0.8888888 | 0.942809 | 2 |
| ExampleClass.method4() | 3 | 0 | 1 | 0.333333 | 0.2222222 | 0.471404 | 1 |
| ExampleClass.method5() | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
| Method | Description |
|---|---|
| start(id) | Start the benchmarking with a given identifier. Returns a StopWatchInternal object on which stop() can be called. |
| stop() | Measure the performance and add to internal cache |
| flush() | Clear the internal cache |
| stats() | An key-value pair containing the stats per given identifier |
| table() | String representation of a table |
PYTHON
from stopwatch import StopWatch
sw = StopWatch.start("SOME_IDENTIFIER")
# ... more code
sw.stop()
print StopWatch.table()JAVASCRIPT (NodeJS + Browser)
// import or include using <script> tag
sw = StopWatch.start("SOME_IDENTIFIER")
// more code
sw.stop()
console.log(StopWatch.table())MIT