Benchmark: Compare long way

Tests:

Compare if, x predefined as 0
var a = Math.random()*100; var b = Math.random()*100; var x = 0; if ( b > a ) { var x = 1; }; var y = 0.7 * x;
Compare if else
var a = Math.random()*100; var b = Math.random()*100; if ( b > a ) { var x = 1; } else { var x = 0; }; var y = 0.7 * x;
Compare math abs
var a = Math.random()*100; var b = Math.random()*100; var x = (Math.abs(a-b)-Math.abs(a-b+1)+1)/2; var y = 0.7 * x;
Compare without abs with pow
var a = Math.random()*100; var b = Math.random()*100; var x = (Math.sqrt(Math.pow(a-b,2))-Math.sqrt(Math.pow(a-b+1,2))+1)/2; var y = 0.7 * x;
Compare without abs or pow
var a = Math.random()*100; var b = Math.random()*100; var x = (Math.sqrt((a-b)*(a-b))-Math.sqrt((a-b+1)*(a-b+1))+1)/2; var y = 0.7 * x;
Compare math abs invert
var a = Math.random()*100; var b = Math.random()*100; var x = (Math.abs(a-b+1)-Math.abs(a-b)+1)/2; var y = 0.7 * x;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Compare if, x predefined as 0
Compare if else
Compare math abs
Compare without abs with pow
Compare without abs or pow
Compare math abs invert

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

I'd be happy to help you understand what's being tested in this benchmark.

**Benchmark Overview**

The benchmark is designed to compare the performance of different approaches for calculating a value `x` based on two input values `a` and `b`. The goal is to find the most efficient way to calculate `x`.

**Approaches Compared**

There are four approaches compared:

1. **Compare if, x predefined as 0**: This approach uses an if-else statement to assign `x` a value of either 0 or 1 based on the comparison between `a` and `b`.
2. **Compare if else**: Similar to the first approach, but without predefining `x` as 0.
3. **Compare math abs**: This approach uses the `Math.abs()` function to calculate the absolute difference between `a` and `b`, and then calculates `x` based on this value.
4. **Compare without abs with pow**: This approach uses exponentiation (`Math.pow()`) to calculate the square of the differences between `a` and `b`, and then calculates `x` based on these values.
5. **Compare without abs or pow**: This approach uses a simple arithmetic expression to calculate `x` without using `Math.abs()` or exponentiation.

**Pros and Cons of Each Approach**

1. **Compare if, x predefined as 0**:
	* Pros: Simple and straightforward.
	* Cons: May not be optimal for all cases, especially when `a` and `b` have different signs.
2. **Compare if else**:
	* Pros: More flexible than the first approach, can handle both positive and negative differences between `a` and `b`.
	* Cons: Requires more branches in the conditional statement, which can be slower.
3. **Compare math abs**:
	* Pros: Efficiently calculates the absolute difference between `a` and `b`, then uses this value to calculate `x`.
	* Cons: May not be optimal for cases where `a` and `b` have similar values, as it wastes calculations.
4. **Compare without abs with pow**:
	* Pros: Uses exponentiation to reduce the number of calculations required, which can lead to faster results.
	* Cons: Requires more complex arithmetic expressions, which may be slower for some cases.
5. **Compare without abs or pow**:
	* Pros: Simple and straightforward, does not rely on `Math.abs()` or exponentiation.
	* Cons: May not be optimal for all cases, especially when dealing with large differences between `a` and `b`.

**Other Considerations**

1. **Library Usage**: Some approaches use libraries like Math.js to perform mathematical operations, which may affect performance.
2. **Special JS Features**: None of the benchmark tests rely on special JavaScript features or syntax.

**Alternatives**

If you're looking for alternatives to this benchmark, here are a few options:

1. **Benchmarking frameworks**: Tools like BenchmarkJS or Microbenchmark provide more comprehensive benchmarking capabilities than MeasureThat.net.
2. **Simple benchmarking scripts**: Writing simple benchmarking scripts in languages like Python or C++ can also help identify performance bottlenecks in your code.

I hope this explanation helps!

Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0

Browser/OS: Firefox 53 on Windows 7

View result in a separate tab

Test name	Executions per second
Compare if, x predefined as 0	41311972.0 Ops/sec
Compare if else	41392088.0 Ops/sec
Compare math abs	43699804.0 Ops/sec
Compare without abs with pow	35070864.0 Ops/sec
Compare without abs or pow	40044400.0 Ops/sec
Compare math abs invert	44019528.0 Ops/sec

Related benchmarks:

Compare long way (version: 0)

Testing some alternative if comparing

Comparing performance of: Compare if, x predefined as 0 vs Compare if else vs Compare math abs vs Compare without abs with pow vs Compare without abs or pow vs Compare math abs invert

Created: 7 years ago by: Guest

Jump to the latest result

Compare if, x predefined as 0

Compare if else

Compare math abs

Compare without abs with pow

Compare without abs or pow

Compare math abs invert

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):