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Damien Neil 3bd0eab96f runtime: randomize order of timers at the same instant in bubbles 
In synctest bubbles, fire timers scheduled for the same instant
in a randomized order.

Pending timers are added to a heap ordered by the timer's wakeup time.
Add a per-timer random value, set when the timer is added to a heap,
to break ties between timers scheduled for the same instant.

Only inject this randomness in synctest bubbles. We could do so
for all timers at the cost of one cheaprand call per timer,
but given that it's effectively impossible to create two timers
scheduled for the same instant outside of a fake-time environment,
don't bother.

Fixes #73876
For #73850

Change-Id: Ie96c86a816f548d4c31e4e014bf9293639155bd4
Reviewed-on: https://go-review.googlesource.com/c/go/+/677276
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
 		2025-06-02 14:06:18 -07:00
.github .github: update language change proposal template 2024-08-08 19:02:29 +00:00
api testing: add Output method to TB 2025-06-02 09:09:57 -07:00
doc doc/next: delete 2025-05-29 10:46:01 -07:00
lib lib/time: update to 2025b/2025b 2025-05-28 09:03:11 -07:00
misc misc/linkcheck: remove unused tool 2025-03-20 04:38:55 -07:00
src runtime: randomize order of timers at the same instant in bubbles 2025-06-02 14:06:18 -07:00
test cmd/compile: do nil check before calling duff functions, on arm64 and amd64 2025-05-28 20:35:09 -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.

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Install From Source

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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.