1
0
mirror of https://github.com/golang/go synced 2024-09-29 12:24:31 -06:00
go/src
Rhys Hiltner 6ec46f4707 runtime/pprof: slow new goroutine launches in test
The goroutine profiler tests include one that launches a steady stream
of goroutines. That creates a scheduler busy loop that can prevent
forward progress in the rest of the program. Slow down the launches a
bit so other goroutines have a chance to run.

Fixes #52916
For #52934

Change-Id: I748557201b94918b1fa4960544a51a48d9cacc6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/406654
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2022-05-16 18:30:07 +00:00
..
archive archive/zip: error if using io/fs on zip with duplicate entries 2022-05-10 17:51:16 +00:00
bufio bufio: clarify io.EOF behavior of Reader.Read 2022-05-02 21:34:37 +00:00
builtin
bytes internal/bytealg: optimize index function for ppc64le/power9 2022-05-09 12:02:02 +00:00
cmd cmd/compile: set LocalPkg.Path to -p flag 2022-05-16 18:19:47 +00:00
compress compress/flate: remove compressor.hash field 2022-05-11 13:57:00 +00:00
container
context
crypto crypto/aes: simplify key load+store on PPC64 2022-05-13 14:14:49 +00:00
database/sql database/sql: follow convention for field naming 2022-05-14 00:17:10 +00:00
debug all: fix some lint issues 2022-05-08 17:27:54 +00:00
embed
encoding encoding/csv: add Reader.InputOffset method 2022-05-14 04:25:13 +00:00
errors
expvar
flag
fmt
go cmd/compile: set LocalPkg.Path to -p flag 2022-05-16 18:19:47 +00:00
hash
html
image
index/suffixarray
internal cmd/compile: set LocalPkg.Path to -p flag 2022-05-16 18:19:47 +00:00
io io: add an Err field to LimitedReader 2022-05-04 20:06:32 +00:00
log
math all: fix some lint issues 2022-05-08 17:27:54 +00:00
mime mime: skip globs2 entries that are not simple file extensions 2022-05-13 21:01:01 +00:00
net net/netip: skip some TestAddrStringAllocs tests on noopt builders 2022-05-12 13:42:39 +00:00
os os/exec: eliminate some arbitrary short timeouts 2022-05-10 22:12:11 +00:00
path path/filepath: simplify EvalSymlinks for plan9 2022-05-09 14:44:54 +00:00
plugin
reflect reflect: implement float32 for regabi riscv64 2022-05-04 13:38:32 +00:00
regexp
runtime runtime/pprof: slow new goroutine launches in test 2022-05-16 18:30:07 +00:00
sort
strconv
strings
sync sync: remove the redundant logic on sync.(*Pool).Put 2022-05-08 17:23:05 +00:00
syscall syscall: update broken links 2022-05-10 21:29:25 +00:00
testdata
testing Revert "testing: document -race goroutine limits" 2022-05-11 13:55:35 +00:00
text
time time: clarify that monotonic clock is not returned by t.Unix 2022-05-13 21:01:13 +00:00
unicode
unsafe
vendor vendor, cmd/vendor: update to current x/sys repo 2022-05-03 19:48:07 +00:00
all.bash
all.bat all.bat,clean.bat,race.bat,run.bat: call some.bat with .\some.bat 2022-05-12 16:59:17 +00:00
all.rc
bootstrap.bash
buildall.bash
clean.bash
clean.bat all.bat,clean.bat,race.bat,run.bat: call some.bat with .\some.bat 2022-05-12 16:59:17 +00:00
clean.rc
cmp.bash
go.mod vendor, cmd/vendor: update to current x/sys repo 2022-05-03 19:48:07 +00:00
go.sum vendor, cmd/vendor: update to current x/sys repo 2022-05-03 19:48:07 +00:00
make.bash
make.bat make.bat: call env.bat with .\env.bat 2022-05-12 13:50:51 +00:00
Make.dist
make.rc
race.bash cmd,runtime: enable race detector on s390x 2022-05-04 14:17:20 +00:00
race.bat all.bat,clean.bat,race.bat,run.bat: call some.bat with .\some.bat 2022-05-12 16:59:17 +00:00
README.vendor
run.bash
run.bat all.bat,clean.bat,race.bat,run.bat: call some.bat with .\some.bat 2022-05-12 16:59:17 +00:00
run.rc

Vendoring in std and cmd
========================

The Go command maintains copies of external packages needed by the
standard library in the src/vendor and src/cmd/vendor directories.

In GOPATH mode, imports of vendored packages are resolved to these
directories following normal vendor directory logic
(see golang.org/s/go15vendor).

In module mode, std and cmd are modules (defined in src/go.mod and
src/cmd/go.mod). When a package outside std or cmd is imported
by a package inside std or cmd, the import path is interpreted
as if it had a "vendor/" prefix. For example, within "crypto/tls",
an import of "golang.org/x/crypto/cryptobyte" resolves to
"vendor/golang.org/x/crypto/cryptobyte". When a package with the
same path is imported from a package outside std or cmd, it will
be resolved normally. Consequently, a binary may be built with two
copies of a package at different versions if the package is
imported normally and vendored by the standard library.

Vendored packages are internally renamed with a "vendor/" prefix
to preserve the invariant that all packages have distinct paths.
This is necessary to avoid compiler and linker conflicts. Adding
a "vendor/" prefix also maintains the invariant that standard
library packages begin with a dotless path element.

The module requirements of std and cmd do not influence version
selection in other modules. They are only considered when running
module commands like 'go get' and 'go mod vendor' from a directory
in GOROOT/src.

Maintaining vendor directories
==============================

Before updating vendor directories, ensure that module mode is enabled.
Make sure GO111MODULE=off is not set ('on' or 'auto' should work).

Requirements may be added, updated, and removed with 'go get'.
The vendor directory may be updated with 'go mod vendor'.
A typical sequence might be:

    cd src
    go get -d golang.org/x/net@latest
    go mod tidy
    go mod vendor

Use caution when passing '-u' to 'go get'. The '-u' flag updates
modules providing all transitively imported packages, not only
the module providing the target package.

Note that 'go mod vendor' only copies packages that are transitively
imported by packages in the current module. If a new package is needed,
it should be imported before running 'go mod vendor'.