faststack
Dynamically resizable data structure optimized for fast iteration.
Summary
| Latest Version | 1.0.0 |
|---|---|
| License | MIT |
| CI Status | Failing |
| Downloads | 0 |
| Last Indexed | 2026-07-24 13:04 |
Tags
Authors
- Vladar4
Installation
nimble install faststack
choosenim install faststack
git clone https://github.com/Vladar4/FastStack
OS Compatibility
| Platform | Linux | macOS | Windows | FreeBSD | OpenBSD | NetBSD | Android | iOS | WASM | Embedded |
|---|---|---|---|---|---|---|---|---|---|---|
| faststack | ✓ | ✓ | ✓ | - | - | - | - | - | - | - |
Dependencies
| Package | Version | Optional |
|---|---|---|
| nim >= | 0.14.3 | No |
Source
| Repository | https://github.com/Vladar4/FastStack |
|---|---|
| Homepage | https://github.com/Vladar4/FastStack |
| Registry Source | nimble_official |
README
FastStack
FastStack is dynamically resizable data structure optimized for fast iteration over the large arrays of similar elements avoiding memory fragmentation (e.g., update and rendering cycles of a game scene).
Tools
bench_int - Benchmark with int elements (low memory fragmentation case)
bench_ptr - Benchmark with ptr elements (high memory fragmentation case)
(using nimbench)
test - Unit testing suite (using unittest)
Benchmark (int)
type
Elem = ref object of RootObj
data: int
Comparing to seq and DoublyLinkedList on i5-2500K @ 4000MHz:
============================================================================
GlobalBenchmark relative time/iter iters/s
============================================================================
GlobalBenchmark 249.31ps 4.01G
============================================================================
bench_int.nim relative time/iter iters/s
============================================================================
Sequence 108.55us 9.21K
List 545.62us 1.83K
FastStack 115.65us 8.65K
- Seq: 100.00%
- List: 19.87%
- FastStack: 93.92%

Benchmark (ptr)
type
Elem = ref object of RootObj
data: pointer
Comparing to seq and DoublyLinkedList on i5-2500K @ 4000MHz:
============================================================================
GlobalBenchmark relative time/iter iters/s
============================================================================
GlobalBenchmark 249.31ps 4.01G
============================================================================
bench_ptr.nim relative time/iter iters/s
============================================================================
Sequence 1.65ms 607.54
List 2.21ms 452.28
FastStack 1.38ms 724.24
- Seq: 100.00%
- List: 74.44%
- FastStack: 119.21%
