Benchmark: Jump vs switch case vs else if for non-integers

Tests:

switch case

function thing(j)
{
  switch(j)
  {
    case '0':
      return "zero";
    case '1':
      return "one";
    case '2':
      return "two";
    case '3':
      return "three";
    case '4':
      return "four";
    case '5':
      return "five";
    case '6':
      return "six";
    case '7':
      return "seven";
    case '8':
      return "eight";
    case '9':
      return "nine";
  }
}

for(let i = 0; i < 100000; i++)
{
  thing((i % 10).toString());
}

​x
 
function thing(j){  switch(j)  {    case '0':      return "zero";    case '1':      return "one";    case '2':      return "two";    case '3':      return "three";    case '4':      return "four";    case '5':      return "five";    case '6':      return "six";    case '7':      return "seven";    case '8':      return "eight";    case '9':      return "nine";  }}​for(let i = 0; i < 100000; i++){  thing((i % 10).toString());}​​​

jump hash map object

function zero()
{
  return "zero";
}

function one()
{
  return "one";
}

function two()
{
  return "two";
}

function three()
{
  return "three";
}

function four()
{
  return "four";
}

function five()
{
  return "five";
}

function six()
{
  return "six";
}

function seven()
{
  return "seven";
}

function eight()
{
  return "eight";
}

function nine()
{
  return "nine";
}

let jumpMap = {
  '0': zero,
  '1': one,
  '2': two,
  '3': three,
  '4': four,
  '5': five,
  '6': six,
  '7': seven,
  '8': eight,
  '9': nine
};



for(let i = 0; i < 100000; i++)
{
  jumpMap[(i % 10).toString()]();
}

 
function zero(){  return "zero";}​function one(){  return "one";}​function two(){  return "two";}​function three(){  return "three";}​function four(){  return "four";}​function five(){  return "five";}​function six(){  return "six";}​function seven(){  return "seven";}​function eight(){  return "eight";}​function nine(){  return "nine";}​let jumpMap = {  '0': zero,  '1': one,  '2': two,  '3': three,  '4': four,  '5': five,  '6': six,  '7': seven,  '8': eight,  '9': nine};​​​for(let i = 0; i < 100000; i++){  jumpMap[(i % 10).toString()]();}​

jump map instance

function zero()
{
  return "zero";
}

function one()
{
  return "one";
}

function two()
{
  return "two";
}

function three()
{
  return "three";
}

function four()
{
  return "four";
}

function five()
{
  return "five";
}

function six()
{
  return "six";
}

function seven()
{
  return "seven";
}

function eight()
{
  return "eight";
}

function nine()
{
  return "nine";
}

let jumpMap = new Map();

jumpMap.set('0', zero)
jumpMap.set('1', one)
jumpMap.set('2', two)
jumpMap.set('3', three)
jumpMap.set('4', four)
jumpMap.set('5', five)
jumpMap.set('6', six)
jumpMap.set('7', seven)
jumpMap.set('8', eight)
jumpMap.set('9', nine)

for(let i = 0; i < 100000; i++)
{
  jumpMap.get((i % 10).toString())();
}

 
function zero(){  return "zero";}​function one(){  return "one";}​function two(){  return "two";}​function three(){  return "three";}​function four(){  return "four";}​function five(){  return "five";}​function six(){  return "six";}​function seven(){  return "seven";}​function eight(){  return "eight";}​function nine(){  return "nine";}​let jumpMap = new Map();​jumpMap.set('0', zero)jumpMap.set('1', one)jumpMap.set('2', two)jumpMap.set('3', three)jumpMap.set('4', four)jumpMap.set('5', five)jumpMap.set('6', six)jumpMap.set('7', seven)jumpMap.set('8', eight)jumpMap.set('9', nine)​for(let i = 0; i < 100000; i++){  jumpMap.get((i % 10).toString())();}​

else if

function thing(j)
{
  if (j === '0') {
    return 'zero';
  } else if (j === '1') {
    return 'one'; 
  } else if (j === '2') {
    return 'two'; 
  } else if (j === '3') {
    return 'three'; 
  } else if (j === '4') {
    return 'four';
  } else if (j === '5') {
    return 'five';
  } else if (j === '6') {
    return 'six';
  } else if (j === '7') {
    return 'seven';
  } else if (j === '8') {
    return 'eight'; 
  } else if (j === '9') {
    return 'nine'; 
  }
}

for(let i = 0; i < 100000; i++)
{
  thing((i % 10).toString());
}

 
function thing(j){  if (j === '0') {    return 'zero';  } else if (j === '1') {    return 'one';   } else if (j === '2') {    return 'two';   } else if (j === '3') {    return 'three';   } else if (j === '4') {    return 'four';  } else if (j === '5') {    return 'five';  } else if (j === '6') {    return 'six';  } else if (j === '7') {    return 'seven';  } else if (j === '8') {    return 'eight';   } else if (j === '9') {    return 'nine';   }}​for(let i = 0; i < 100000; i++){  thing((i % 10).toString());}​​​

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

Memory measurements supported only in Chrome.
For precise memory measurements Chrome must be launched with --enable-precise-memory-info flag.
More information: Monitoring JavaScript Memory

Test case name	Result
switch case
jump hash map object
jump map instance
else if

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser/OS: Firefox 121 on Linux

View result in a separate tab

Test name	Executions per second
switch case	924.6 Ops/sec
jump hash map object	1108.2 Ops/sec
jump map instance	790.6 Ops/sec
else if	803.1 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

Let's break down what's being tested in the provided benchmark.

Benchmark Goal:

The goal of this benchmark is to compare the performance of three different approaches for handling non-integer values:

Switch Case: Using a switch statement to handle different cases.
Jump Hash Map Object: Using a hash map (JavaScript object) with functions as values, where the key is a string representation of the input value and the function returns a corresponding result.
Else If: Using multiple else if statements to handle different cases.

Options Comparison:

The benchmark compares the performance of these three approaches for a large number of iterations (100,000). The goal is to determine which approach is the fastest.

Benchmark Results:

The latest benchmark results show that:

Jump Hash Map Object: Performs best with an average execution rate of 924.63 executions per second.
Switch Case: Comes in second with an average execution rate of 803.05 executions per second.
Else If: Performs the worst with an average execution rate of 790.64 executions per second.

Observations:

The results suggest that using a hash map (Jump Hash Map Object) is the most efficient approach, likely due to its ability to directly access and execute the corresponding function for a given input value without the overhead of branching statements (switch case or else if). The switch case approach might incur additional overhead due to the number of branches and potential mispredictions by the JavaScript engine. The else if approach seems to be the slowest, possibly due to the need for multiple branches and potential stack overflows.

Keep in mind that these results are specific to Firefox 121 running on Linux Desktop, and the performance may vary across different browsers, platforms, and use cases.

LLMs can make mistakes. Check important info.

Let's break down what's being tested in the provided benchmark.

**Benchmark Goal:**

The goal of this benchmark is to compare the performance of three different approaches for handling non-integer values:

1. **Switch Case**: Using a `switch` statement to handle different cases.
2. **Jump Hash Map Object**: Using a hash map (JavaScript object) with functions as values, where the key is a string representation of the input value and the function returns a corresponding result.
3. **Else If**: Using multiple `else if` statements to handle different cases.

**Options Comparison:**

The benchmark compares the performance of these three approaches for a large number of iterations (100,000). The goal is to determine which approach is the fastest.

**Benchmark Results:**

The latest benchmark results show that:

* **Jump Hash Map Object**: Performs best with an average execution rate of 924.63 executions per second.
* **Switch Case**: Comes in second with an average execution rate of 803.05 executions per second.
* **Else If**: Performs the worst with an average execution rate of 790.64 executions per second.

**Observations:**

Keep in mind that these results are specific to Firefox 121 running on Linux Desktop, and the performance may vary across different browsers, platforms, and use cases.

Related benchmarks:

Jump vs switch case vs else if for non-integers (version: 1)

Using a jump hash map vs switch / case vs else if for non-integer values

Comparing performance of: switch case vs jump hash map object vs jump map instance vs else if

Created: one year ago by: Registered User

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