| commit | 84fbdf01ffde21fcf0a5359d98a65dc6ee16f5a5 | [log] [tgz] |
|---|---|---|
| author | Michael Pratt <mpratt@google.com> | Thu Feb 29 16:23:03 2024 -0500 |
| committer | Gopher Robot <gobot@golang.org> | Thu Apr 18 15:39:17 2024 +0000 |
| tree | 8110a89b0e85ed739e2aaa3841ac4d2cc1255b76 | |
| parent | 081dc9fd8c9cf824f5caac3a03a1c8dfd86894c0 [diff] |
cmd/go: use cache for PGO preprocessing This is the final CL in the series adding PGO preprocessing support to cmd/go. Now that the tool is hooked up, we integrate with the build cache to cache the result. This is fairly straightforward. One difference is that the compile and link do caching through updateBuildID. However, preprocessed PGO files don't have a build ID, so it doesn't make much sense to hack our way through that function when it is simple to just add to the cache ourselves. As as aside, we could add a build ID to the preproccessed file format, though it is not clear if it is worthwhile. The one place a build ID could be used is in buildActionID, which currently compute the file hash of the preprocessed profile. With a build ID it could simply read the build ID. This would save one complete read of the file per build (cmd/go caches the hash), but each compile process also reads the entire file, so this is a small change overall. Fixes #58102. Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest Change-Id: I86e2999a08ccd264230fbb1c983192259b7288e9 Reviewed-on: https://go-review.googlesource.com/c/go/+/569425 Auto-Submit: Michael Pratt <mpratt@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 4.0 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.
Official binary distributions are available at https://go.dev/dl/.
After downloading a binary release, visit https://go.dev/doc/install for installation instructions.
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.
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.