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Michael Anthony Knyszek 1ebc983000 runtime: overestimate the amount of allocated memory in heapLive
CL 377516 made it so that memory metrics are truly monotonic, but also
updated how heapLive tracked allocated memory to also be monotonic.

The result is that cached spans with allocated memory aren't fully
accounted for by the GC, causing it to make a worse assumption (the
exact mechanism is at this time unknown), resulting in a memory
regression, especially for smaller heaps.

This change is a partial revert of CL 377516 that makes heapLive a
non-monotonic overestimate again, which appears to resolve the
regression.

For #53738.

Change-Id: I5c51067abc0b8e0a6b89dd8dbd4a0be2e8c0c1b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/416417
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-07-07 21:15:48 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api debug/pe: add IMAGE_FILE_MACHINE_LOONGARCH{64,32} 2022-06-29 22:29:34 +00:00
doc spec: retitle section on "Assignments" to "Assignment statements" 2022-06-30 00:58:41 +00:00
lib/time lib/time, time/tzdata: update to 2022a 2022-05-31 08:53:53 +00:00
misc misc/cgo/test: make TestSetgidStress cheaper 2022-07-06 14:23:50 +00:00
src runtime: overestimate the amount of allocated memory in heapLive 2022-07-07 21:15:48 +00:00
test cmd/compile: only check implicit dots for method call enabled by a type bound 2022-07-06 20:29:10 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Jinzhu Zhang 2022-05-08 17:28:26 +00:00
CONTRIBUTING.md
CONTRIBUTORS A+C: add Jinzhu Zhang 2022-05-08 17:28:26 +00:00
LICENSE
PATENTS
README.md README.md: update wiki link 2022-04-26 16:21:18 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +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 3.0 Attributions 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.