Benchmark: memory ref test - MeasureThat.net

Tests:

ref
let res = {a:{b:123, c:213, d:{f:1134}}}; res.a.b=1000; res.a.c=2000; res.a.d.f=2000; res.a.d.f=3000;
new Assignment
let res = {a:{b:123, c:213, d:{f:1134}}}, a = res.a, f = res.a.d.f; a.b=1000; a.c=2000; f=2000; f=3000;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
ref
new Assignment

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark definition and test cases to understand what is being tested.

**Benchmark Definition:**

The benchmark definition consists of a JSON object with several properties:

* `Name`: The name of the benchmark, which in this case is "memory ref test".
* `Description`: An optional description of the benchmark, but it's empty in this case.
* `Script Preparation Code` and `Html Preparation Code`: These are optional fields that specify any code needed to prepare the test environment. In this case, they're both null, indicating no preparation code is required.

**Test Cases:**

There are two individual test cases:

1. **"ref"`**

This test case uses a simple assignment pattern:
```javascript
let res = {a:{b:123, c:213, d:{f:1134}}};
res.a.b=1000;
res.a.c=2000;
res.a.d.f=2000;
res.a.d.f=3000;
```
The test case assigns values to the properties of an object (`res`) using dot notation. The assignment pattern is common in JavaScript and can be optimized.

2. **"new Assignment"`**

This test case uses a slightly different assignment pattern:
```javascript
let res = {a:{b:123, c:213, d:{f:1134}}};
a = res.a;
f = res.a.d.f;

a.b=1000;
a.c=2000;
f=2000;
f=3000;
```
The test case assigns values to two separate variables (`a` and `f`) and then reassigns the same value to both variables. This pattern is also common in JavaScript, but it can lead to additional overhead due to variable assignments.

**Library Usage:**

There are no explicit library references mentioned in the benchmark definition or test cases. However, some libraries (e.g., `lodash`) might be implicitly used by the test code, especially if it's using complex utility functions like `_.assign()`.

**Special JS Features/Syntax:**

The benchmark definition and test cases use standard JavaScript syntax and features, such as:

* Object literal notation (`{a:{b:123, c:213, d:{f:1134}}}`)
* Dot notation for property access (`res.a.b=1000`)
* Variable assignment using the `=` operator

There are no special or proprietary JavaScript features used in this benchmark.

**Other Alternatives:**

To write a similar benchmark, you could consider the following alternatives:

1. **Assignment patterns:** Try using different assignment patterns, such as nested assignment (`res.a.b = {x: 1000};`) or chained assignments (`(res.a.b = 1000) && (res.a.c = 2000);`).
2. **Object mutation:** Instead of assigning new values to existing properties, try mutating the object's structure by adding, removing, or replacing properties.
3. **Array-based tests:** Create benchmark cases that involve array operations, such as pushing, popping, or indexing elements.
4. **Multithreading or concurrency:** Test the performance of your JavaScript engine in a multithreaded or concurrent environment using libraries like Web Workers or async/await.

By exploring these alternatives and modifying the original test cases, you can create more diverse and challenging benchmark scenarios that better represent real-world use cases and help optimize your JavaScript engine.

Related benchmarks:

memory ref test (version: 0)

Comparing performance of: ref vs new Assignment

Created: 4 years ago by: Guest

Jump to the latest result

ref

new Assignment

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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