Benchmark: yongyong - MeasureThat.net

Tests:

(Math.round(heading * 10) / 10).toFixed(1)
(Math.round(999 * 10) / 10).toFixed(1)
(heading).toFixed(1)
(999).toFixed(1)
(Math.round(999 * 10) / 10).toString()
(Math.round(999 * 10) / 10).toString()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
(Math.round(heading * 10) / 10).toFixed(1)
(heading).toFixed(1)
(Math.round(999 * 10) / 10).toString()

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what's being tested, compared, and considered in this JavaScript microbenchmark.

**Benchmark Definition JSON**

The `Name`, `Description`, `Script Preparation Code`, and `Html Preparation Code` fields are empty or null, which means that no specific benchmarking logic is applied to the scripts. This allows users to create their own custom benchmarks.

**Individual Test Cases**

There are three test cases:

1. `(Math.round(999 * 10) / 10).toFixed(1)` vs `(Math.round(heading * 10) / 10).toFixed(1)`
	* These two expressions perform the same operation: rounding a number to one decimal place using `Math.round()` and then formatting it as a fixed-point number using `toFixed(1)`.
	* The difference lies in the variable used for multiplication, which is `heading` in the second expression. This means that the performance of these two expressions will depend on the value of `heading`, making it a dependent benchmark.
2. `(999).toFixed(1)` vs `(heading).toFixed(1)`
	* These two expressions are similar, but the first one uses a literal number (999) instead of the variable `heading`.
	* The performance difference between these two expressions will also depend on the value of `heading`, making this another dependent benchmark.
3. `(Math.round(999 * 10) / 10).toString()` vs `(Math.round(999 * 10) / 10).toString()`
	* This test case is identical, as both expressions convert a number to its string representation using `toString()`. Since the input values are the same, there's no performance difference between these two expressions.

**Performance Considerations**

The performance results provided for each test case indicate that:

1. The dependent benchmark involving `heading` has different execution times on Chrome 93 across three runs.
2. The standalone expression `(999).toFixed(1)` has a lower execution time than the dependent expression `(heading).toFixed(1)`.
3. The identical expressions have similar execution times.

**Library and Special JS Features**

There are no explicit libraries mentioned in the provided JSON data. However, `Math.round()` and `toFixed(1)` are standard JavaScript functions.

**Other Considerations**

* The benchmark results show that the execution time is measured in executions per second (`ExecutionsPerSecond`).
* The user agent string (`RawUAString`) indicates that the tests were run on a Chrome browser with version 93.
* The device platform and operating system are specified as Desktop (Mac OS X 10.15.7).

**Alternatives**

To create custom benchmarks, users can:

1. Create their own JavaScript functions and compare them using this tool.
2. Modify existing benchmarks to change the input variables or expressions.

Keep in mind that creating a benchmark requires careful consideration of performance characteristics, such as variable dependencies, constant vs variable inputs, and potential optimization paths.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36

Browser/OS: Chrome 93 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
(Math.round(heading * 10) / 10).toFixed(1)	1754439.1 Ops/sec
(heading).toFixed(1)	2716752.0 Ops/sec
(Math.round(999 * 10) / 10).toString()	5437722.5 Ops/sec

Related benchmarks:

yongyong (version: 0)

Comparing performance of: (Math.round(heading * 10) / 10).toFixed(1) vs (heading).toFixed(1) vs (Math.round(999 * 10) / 10).toString()

Created: 3 years ago by: Guest

Jump to the latest result

(Math.round(heading * 10) / 10).toFixed(1)

(heading).toFixed(1)

(Math.round(999 * 10) / 10).toString()

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):