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array vs int32array2
(version: 0)
.
Comparing performance of:
array vs int32array
Created:
5 years ago
by:
Guest
Go to the latest result
Tests:
array
const array = []; for(let i = 0; i < 100; i++){ array.push(i); }
int32array
const array = new Int32Array(100); for(let i = 0; i < 100; i++){ array[i]; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
array
int32array
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
6 months ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0
Browser/OS:
Firefox 147 on Windows
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<iframe src="https://measurethat.net/Embed?id=624520" width="100%" height="500px"></iframe>
int32array
2.3M/s
array
909K/s
View exact numbers
Test name
Executions per second
✓
int32array
2,331,774 Ops/sec
array
909,299 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to explain the benchmark. **What is being tested?** The benchmark tests two approaches: using an array (`const array = []`) versus using an `Int32Array` (a typed array) (`const array = new Int32Array(100)`). **Comparison of options** In this case, we have two main options: 1. **Using an array**: This approach creates a regular JavaScript array and pushes elements to it in a loop. 2. **Using an `Int32Array`**: This approach creates a typed array specifically designed for 32-bit integer values and assigns each element directly to the array. **Pros and Cons of each approach** 1. **Using an array**: * Pros: Easy to use, no need for explicit type declarations. * Cons: Slower performance due to dynamic typing and potential overhead of JavaScript's dynamic memory management. 2. **Using an `Int32Array`**: * Pros: Faster performance, as typed arrays are optimized for fixed-size values. * Cons: Requires explicit type declaration and initialization with a specific size. **Additional considerations** In this benchmark, the test case uses no special JavaScript features or syntax beyond what is required for each approach. The `Int32Array` is used to store 32-bit integers, which are then assigned directly to the array using indexing (`array[i]`). **Other alternatives** In a broader context, other alternatives might include: * Using a `Uint8Array` (an unsigned 8-bit integer array) instead of an `Int32Array` * Using a JavaScript library or framework that provides optimized typed arrays, such as WebAssembly's typed arrays * Using a different data structure altogether, such as a binary buffer However, in this specific benchmark, the two approaches being compared are using an array versus using an `Int32Array`, which highlights the trade-offs between dynamic typing and explicit type declarations.
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