Skip to content

Init optimization #7

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
0xdea110c8 merged 4 commits into from
Aug 14, 2026
Merged

Init optimization #7

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
4a2fe5d
ignore benchmark baselines
0xdea110c8 Aug 14, 2026
896b7da
inline init inner methods
0xdea110c8 Aug 14, 2026
46924a7
ignore benchmark baselines folder
0xdea110c8 Aug 14, 2026
4bc3de0
modify benchmark results file
0xdea110c8 Aug 14, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion .gitignore
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8,4 +8,4 @@ DerivedData/
.netrc
Package.resolved

/Scripts/benchmarks
.benchmarkBaselines/
10 changes: 5 additions & 5 deletions Benchmark.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -10,8 +10,9 @@ Differences within 1.00×–1.10× are treated as comparable performance.
| `copy/escaping/16-byte` | 1.778 | 0.669 | **2.66× faster** |
| `search` | 3.865 | 1.601 | **2.41× faster** |
| `iterate` | 2.445 | 1.113 | **2.20× faster** |
| `init/15-byte/string-literal` | 4.366 | 2.916 | **1.49× faster** |
| `init/15-byte` | 4.366 | 3.569 | **1.22× faster** |
| `access/count(utf8)` | 1.334 | 1.112 | **1.20× faster** |
| `init/15-byte/string-literal` | 4.366 | 4.073 | **comparable performance** |
| `decode/escaping/16-byte` | 403 | 398 | **comparable performance** |
| `copy/empty` | 1.112 | 1.112 | **comparable performance** |
| `copy/15-byte` | 1.112 | 1.112 | **comparable performance** |
Expand All @@ -28,9 +29,8 @@ Differences within 1.00×–1.10× are treated as comparable performance.
| `encode/escaping/16-byte` | 393 | 399 | **comparable performance** |
| `decode/escaping/15-byte` | 378 | 403 | **comparable performance** |
| `encode/16-byte` | 367 | 394 | **comparable performance** |
| `init/15-byte` | 4.366 | 5.431 | **1.24× slower** |
| `init/16-byte/string-literal` | 4.444 | 6.504 | **1.46× slower** |
| `init/16-byte` | 4.444 | 7.594 | **1.71× slower** |
| `init/empty/string-literal` | 1.112 | 3.316 | **2.98× slower** |
| `init/16-byte` | 4.444 | 4.734 | **comparable performance** |
| `init/16-byte/string-literal` | 4.444 | 4.268 | **comparable performance** |
| `init/empty/string-literal` | 1.112 | 2.902| **2.60× slower** |
| `access/escaping/string` | 1.778 | 7.823 | **4.40× slower** |
| `access/string` | 1.112 | 7.172 | **6.45× slower** |
4 changes: 4 additions & 0 deletions Sources/InlineString/InlineString16.swift
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -137,6 +137,7 @@ public struct InlineString16: BitwiseCopyable, Sendable {
/// return `false` instead of triggering a runtime trap.
/// - Returns: `true` if the string was successfully stored; otherwise, `false`
/// when validation is enabled and the string exceeds the storage capacity.
@inline(__always)
@discardableResult
mutating func _initialize(from string: String, validating: Bool) -> Bool {
guard !string.isEmpty else {
Expand Down Expand Up @@ -167,6 +168,7 @@ public struct InlineString16: BitwiseCopyable, Sendable {
/// - Parameters:
/// - utf8: A UTF-8 view containing the bytes to copy.
/// - storage: The destination storage tuple.
@inline(__always)
mutating func _copyUTF8Bytes(from utf8: String.UTF8View) {
precondition(utf8.count <= 15, "String must fit within small string capacity.")

Expand Down Expand Up @@ -204,6 +206,7 @@ public struct InlineString16: BitwiseCopyable, Sendable {
/// - Parameters:
/// - string: The source string.
/// - storage: The destination storage tuple.
@inline(__always)
mutating func _copyStringContent(from string: String) {
var string = string

Expand Down Expand Up @@ -235,6 +238,7 @@ public struct InlineString16: BitwiseCopyable, Sendable {
/// - Parameter validating: A Boolean value indicating whether the operation
/// should fail gracefully instead of trapping.
/// - Returns: `false` when validation is enabled.
@inline(__always)
func _onExceedingCapacity(validating: Bool) -> Bool {
if validating {
return false
Expand Down