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Julien Cretel f9ce1dddc2 mime: speed up ParseMediaType 
Add benchmarks for ParseMediaType.

Eschew UTF-8 decoding and strings.IndexFunc where possible, and rely
on 128-bit bitmaps instead. Eliminate some bounds checks.

Some benchmark results (no changes to allocations):

goos: darwin
goarch: amd64
pkg: mime
cpu: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
                      │     old     │                 new                 │
                      │   sec/op    │   sec/op     vs base                │
ParseMediaType-8        71.75µ ± 0%   55.53µ ± 0%  -22.60% (p=0.000 n=20)
ParseMediaTypeBogus-8   5.330µ ± 0%   3.603µ ± 0%  -32.41% (p=0.000 n=20)
geomean                 19.56µ        14.14µ       -27.67%

Change-Id: I324c9990fe43581484916ecff61ca6c708467a89
GitHub-Last-Rev: e2293d64b3
GitHub-Pull-Request: golang/go#73436
Reviewed-on: https://go-review.googlesource.com/c/go/+/666655
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: Sean Liao <sean@liao.dev>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Sean Liao <sean@liao.dev>
2025-04-26 08:01:54 -07:00
.github .github: update language change proposal template 2024-08-08 19:02:29 +00:00
api unicode: add CategoryAliases, Cn, LC 2025-04-18 14:13:31 -07:00
doc cmd/vet: add hostport analyzer 2025-04-23 19:09:44 -07:00
lib lib/time: build with Ubuntu backward compatibility options 2025-02-06 17:10:15 -08:00
misc misc/linkcheck: remove unused tool 2025-03-20 04:38:55 -07:00
src mime: speed up ParseMediaType 2025-04-26 08:01:54 -07:00
test cmd/compile: put constant value on node inside parentheses 2025-04-24 12:17:27 -07:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore runtime,internal: move runtime/internal/sys to internal/runtime/sys 2024-07-23 19:05:35 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
go.env cmd/go: additional doc-inspired tests and bug fixes 2023-06-06 19:18:46 +00:00
LICENSE LICENSE: update per Google Legal 2024-08-09 14:54:31 +00:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README.md README: fix CC BY license name 2024-07-22 17:45:27 +00:00
SECURITY.md SECURITY.md: update the Reporting a Vulnerability link 2023-09-22 21:17:24 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 4.0 Attribution license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

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Note that the Go project uses the issue tracker for bug reports and proposals only. See https://go.dev/wiki/Questions for a list of places to ask questions about the Go language.