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Rhys Hiltner 591c4b50c0 runtime: verify attribution of mutex delay 
Have the test use the same clock (cputicks) as the profiler, and use the
test's own measurements as hard bounds on the magnitude to expect in the
profile.

Compare the depiction of two users of the same lock: one where the
critical section is fast, one where it is slow. Confirm that the profile
shows the slow critical section as a large source of delay (with #66999
fixed), rather than showing the fast critical section as a large
recipient of delay.

Previously reviewed as https://go.dev/cl/586237.

For #66999

Change-Id: Ic2d78cc29153d5322577d84abdc448e95ed8f594
Reviewed-on: https://go-review.googlesource.com/c/go/+/667616
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
 		2025-05-07 12:22:19 -07:00
.github .github: update language change proposal template 2024-08-08 19:02:29 +00:00
api log/slog: export Source method in Record for custom handler support 2025-05-06 03:58:07 -07:00
doc spec: avoid use of "raise" in conjunction with panics 2025-05-06 12:12:15 -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 runtime: verify attribution of mutex delay 2025-05-07 12:22:19 -07:00
test cmd/compile: improve multiplication strength reduction 2025-05-01 09:33:31 -07:00
.gitattributes
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.gitignore runtime,internal: move runtime/internal/sys to internal/runtime/sys 2024-07-23 19:05:35 +00:00
CONTRIBUTING.md
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LICENSE LICENSE: update per Google Legal 2024-08-09 14:54:31 +00:00
PATENTS
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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
codereview.cfg
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go.env cmd/go: additional doc-inspired tests and bug fixes 2023-06-06 19:18:46 +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.

Download and Install

Binary Distributions

Official binary distributions are available at https://go.dev/dl/.

After downloading a binary release, visit https://go.dev/doc/install for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://go.dev/doc/install/source for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.

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.