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x/mobile/cmd/gomobile: iOS app built with gomobile-build consumes memory and never frees #25149

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hajimehoshi opened this issue Apr 28, 2018 · 3 comments
Open

x/mobile/cmd/gomobile: iOS app built with gomobile-build consumes memory and never frees #25149

hajimehoshi opened this issue Apr 28, 2018 · 3 comments
Labels
mobile Android, iOS, and x/mobile
Milestone
Unreleased

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@hajimehoshi
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What version of Go are you using (go version)?

go version go1.10 darwin/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/hajimehoshi/Library/Caches/go-build"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/hajimehoshi/go"
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/7t/qw3np69559591s1v0mk5_p1m0000gn/T/go-build916245002=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

  1. Run gomobile build -target=ios -bundleid=com.hajimehoshi.gomobiletest -work golang.org/x/mobile/example/basic
  2. Open the generated main.xcodeproj
  3. Install it on a device (iPhone 6 in my case)
  4. Run the app via Instruments memory profiler (Zombie)

What did you expect to see?

The app runs without memory increase.

What did you see instead?

The memory usage is increased monotonically:

Screenshot from Gyazo

It looks like _IOAccelResourceAlloc allocates memory and it is never disposed? I'm not sure this is an actual leak.
@gopherbot gopherbot added this to the Unreleased milestone Apr 28, 2018
@gopherbot gopherbot added the mobile Android, iOS, and x/mobile label Apr 28, 2018
@hajimehoshi hajimehoshi changed the title x/mobile/cmd/gomobile: iOS app built with gomobile-build consumes memory monotonically x/mobile/cmd/gomobile: iOS app built with gomobile-build consumes memory and never frees Apr 28, 2018
@zhNirvanaRebirth
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@hajimehoshi did you solve the problem?

@hajimehoshi
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No. I have not worked on this (gomobile build for iOS) recently.

@zhNirvanaRebirth
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ok, thx

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@hajimehoshi @gopherbot @zhNirvanaRebirth