Benchmark: dynamic create object vs array vs buffered

Tests:

dynamic create object integer value
var object_n = {}; object_n["p1"] = 1; object_n["p2"] = 2; object_n["p3"] = 3; object_n["p4"] = 4; object_n["p5"] = 5; object_n["p6"] = 6; object_n["p7"] = 7; object_n["p8"] = 8; object_n["p9"] = 9;
dynamic create array integer value
var array_n = []; array_n.push("p1",1); array_n.push("p2",2); array_n.push("p3",3); array_n.push("p4",4); array_n.push("p5",5); array_n.push("p6",6); array_n.push("p7",7); array_n.push("p8",8); array_n.push("p9",9);
dynamic create object string value
var object_s = {}; object_s["p1"] = "1"; object_s["p2"] = "2"; object_s["p3"] = "3"; object_s["p4"] = "4"; object_s["p5"] = "5"; object_s["p6"] = "6"; object_s["p7"] = "7"; object_s["p8"] = "8"; object_s["p9"] = "9";
dynamic create array string value
var array_s = []; array_s.push("p1","1"); array_s.push("p2","2"); array_s.push("p3","3"); array_s.push("p4","4"); array_s.push("p5","5"); array_s.push("p6","6"); array_s.push("p7","7"); array_s.push("p8","8"); array_s.push("p9","9");
buffered array integer values
var array_bn = new Array(20); var i = 0; array_bn[i++] = "p1"; array_bn[i++] = 1; array_bn[i++] = "p2"; array_bn[i++] = 2; array_bn[i++] = "p3"; array_bn[i++] = 3; array_bn[i++] = "p4"; array_bn[i++] = 4; array_bn[i++] = "p5"; array_bn[i++] = 5; array_bn[i++] = "p6"; array_bn[i++] = 6; array_bn[i++] = "p7"; array_bn[i++] = 7; array_bn[i++] = "p8"; array_bn[i++] = 8; array_bn[i++] = "p9"; array_bn[i++] = 9;
buffered array string value
var array_bs = new Array(20); var j = 0; array_bs[j++] = "p1"; array_bs[j++] = "1"; array_bs[j++] = "p2"; array_bs[j++] = "2"; array_bs[j++] = "p3"; array_bs[j++] = "3"; array_bs[j++] = "p4"; array_bs[j++] = "4"; array_bs[j++] = "p5"; array_bs[j++] = "5"; array_bs[j++] = "p6"; array_bs[j++] = "6"; array_bs[j++] = "p7"; array_bs[j++] = "7"; array_bs[j++] = "p8"; array_bs[j++] = "8"; array_bs[j++] = "p9"; array_bs[j++] = "9";

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
dynamic create object integer value
dynamic create array integer value
dynamic create object string value
dynamic create array string value
buffered array integer values
buffered array string value

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one month ago):

LLMs can make mistakes. Check important info.

Let's break down what's being tested in this benchmark.

**What is being tested?**

The benchmark is testing the performance of different ways to dynamically create objects or arrays with string values.

**Options compared:**

1. **Dynamic object creation**: Creating an object using the `{}` syntax, where each property-value pair is assigned individually.
2. **Dynamic array creation**: Creating an array using the `[]` syntax, where elements are added using the `=` operator.
3. **Buffered array creation with string values**: Creating an array with initial string values, and then assigning additional string values to existing indices using the `j++` increment.
4. **Buffered array creation with integer values**: Creating an array with initial integer values, and then assigning additional integer values to existing indices using the `j++` increment.

**Why these options?**

It's likely that the benchmark wants to test the performance of different approaches in various scenarios:

* Dynamic object creation is a common way to create objects in JavaScript.
* Dynamic array creation is another common way to create arrays.
* Buffered array creation with string values might be used when you need to pre-populate an array with initial values and then add more values later. This approach can potentially lead to better performance if the initial values are expensive to compute or if the array needs to be resized frequently.

**Latest benchmark results:**

The latest results show that:

* Buffered array creation with string values (option 4) performs best, with an average of around 4284390 executions per second.
* Dynamic object creation (option 1) performs worse than buffered array creation with string values.
* Buffered array creation with integer values (option 3) also performs well but not as good as option 4.
* Dynamic array creation (option 2) performs the worst among all options.

Keep in mind that these results might vary depending on the specific use case, hardware, and software configurations.

Latest run results:

Run details: (Test run date: 8 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.79 Safari/537.36 Edge/14.14393

Browser/OS: Chrome 51 on Windows

View result in a separate tab

Test name	Executions per second
dynamic create object integer value	23406360.0 Ops/sec
dynamic create array integer value	2283800.5 Ops/sec
dynamic create object string value	22074230.0 Ops/sec
dynamic create array string value	2300722.5 Ops/sec
buffered array integer values	4265100.5 Ops/sec
buffered array string value	4284390.5 Ops/sec

Related benchmarks:

dynamic create object vs array vs buffered (version: 0)

Comparing performance of: dynamic create object integer value vs dynamic create array integer value vs dynamic create object string value vs dynamic create array string value vs buffered array integer values vs buffered array string value

Created: 8 years ago by: Guest

Jump to the latest result

dynamic create object integer value

dynamic create array integer value

dynamic create object string value

dynamic create array string value

buffered array integer values

buffered array string value

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one month ago):