Benchmark: fdsafdsafdsalarge string comparison

Script Preparation code:

var a = "Modification request — You requested to modify your booking at Bring a group to the sanctuary!. The updated request is for 2 nights with 4 Adults, 1 Vehicle, starting October 18, 2023."
var b = a + "1234"
var c = "1234-124-1244-12321421"
var d = "123-4214-21323-2132132"

Tests:

same long string
const z = a === a;
different long string
const z = a === b;
same short
const z = c === c;
different short
const z = c === d;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
same long string
different long string
same short
different short

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Measuring JavaScript performance is a complex task, and the provided benchmark definition is quite interesting.

**Benchmark Definition**

The benchmark is designed to test the performance of JavaScript string comparison operations. The script preparation code creates four variables: `a`, `b`, `c`, and `d`. Variable `a` contains a long string with special characters, while variable `b` is created by concatenating `a` with an additional string "1234". Variables `c` and `d` contain two different short strings.

The benchmark definition uses the JavaScript operator `===` to compare each pair of variables. The comparison operation itself is identical for all test cases: simply checking if a variable equals its own value (i.e., `const z = a === a;`). This ensures that the primary focus is on the string comparison aspect, rather than other factors like function calls or object lookups.

**Comparison Options**

The benchmark compares four different scenarios:

1. **Same long string**: Comparing two identical long strings (`a` with itself).
2. **Different long string**: Comparing a long string (`a`) with a short concatenated string (`b`).
3. **Same short**: Comparing two identical short strings (`c` with itself).
4. **Different short**: Comparing two different short strings (`d`).

**Pros and Cons**

The use of identical variables for comparison (e.g., `const z = a === a;`) can be seen as both beneficial and limiting:

*   **Beneficial:** This approach ensures that the primary focus is on string comparison performance, allowing for a more accurate assessment of the JavaScript engine's capabilities.
*   **Limiting:** By using identical variables, the benchmark doesn't accurately reflect real-world scenarios where variable values might differ.

**Library Usage**

None of the provided code snippets use any external libraries or frameworks. The script preparation code is self-contained and only uses built-in JavaScript features.

**Special JS Features/Syntax**

The benchmark does not utilize any special JavaScript features or syntax beyond basic string comparison (`===`) and concatenation (`+`). No advanced features like async/await, promise handling, or object-oriented programming (OOP) concepts are employed in the script preparation code.

**Alternatives**

For a more comprehensive assessment of JavaScript performance, you might consider adding additional benchmark cases that simulate real-world scenarios, such as:

*   Comparing strings with different encodings or normalization forms.
*   Using regular expressions for string matching.
*   Evaluating array and object operations in conjunction with string comparison.

These alternative approaches would provide a more well-rounded view of the JavaScript engine's capabilities and performance under various workloads.

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36

Browser/OS: Chrome 111 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
same long string	14503559.0 Ops/sec
different long string	14673202.0 Ops/sec
same short	14718472.0 Ops/sec
different short	14641633.0 Ops/sec

Related benchmarks:

fdsafdsafdsalarge string comparison (version: 0)

Worst case large string comparison.

Comparing performance of: same long string vs different long string vs same short vs different short

Created: one year ago by: Guest

Jump to the latest result

same long string

different long string

same short

different short

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):