a81c8b3bf2
URL.String performs memory allocation many times, but it can improve
performance by allocating memory that it clearly knows it needs.
This CL achieves 24.6% speedup, 18.3% memory reduction, and 46.7% fewer memory
allocations on existing benchmarks.
│ string_old.txt │ string_new2.txt │
│ sec/op │ sec/op vs base │
String-16 3.622µ ± 5% 2.730µ ± 2% -24.63% (p=0.000 n=10)
│ string_old.txt │ string_new2.txt │
│ B/op │ B/op vs base │
String-16 1.406Ki ± 0% 1.148Ki ± 0% -18.33% (p=0.000 n=10)
│ string_old.txt │ string_new2.txt │
│ allocs/op │ allocs/op vs base │
String-16 60.00 ± 0% 32.00 ± 0% -46.67% (p=0.000 n=10)
Change-Id: I70199be952eddc44134945077e52740e8921088f
Reviewed-on: https://go-review.googlesource.com/c/go/+/581155
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Joedian Reid <joedian@google.com>
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| misc | ||
| src | ||
| test | ||
| .gitattributes | ||
| .gitignore | ||
| codereview.cfg | ||
| CONTRIBUTING.md | ||
| go.env | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
| SECURITY.md | ||
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