diff options
| author | Mathieu Chartier <mathieuc@google.com> | 2017-07-14 18:23:25 -0700 |
|---|---|---|
| committer | Mathieu Chartier <mathieuc@google.com> | 2017-07-28 17:09:39 -0700 |
| commit | 72041a0dcb5b7c133b79a1d6783a23039f2136bd (patch) | |
| tree | 8de4326eff202726c1ab893c536190aba87334be /compiler/driver/compiler_driver_test.cc | |
| parent | 9ce960ab2b4c789ad364ad96ec5c660c60e4f90c (diff) | |
Use class unloading in dex2oat for verify and extract
Unload the main classloader in between each dex file compilation to
reduce RAM. This frees the whole java heap and associated linear
allocs. This is only used for quickening since filters that do
compilation may require loaded classes in the compiler and oat
writer.
This reduces dex2oat peak PSS for compiling a large app from 196MB
to 135MB.
Only works for verify and extract since the current approach is
incompatible with oat writer patching. b/63911263
Added a verification override that reads the compiled class status
to avoid ever verifying classes that were quickened (since this
is not supported and causes failures).
There is still some duplicated verification for some class with
superclasses in other dex files.
Support for quicken will be added in a follow up CL.
Bug: 63467744
Test: test-art-host
Test: test/testrunner/testrunner.py --interpreter --host -j40
Change-Id: Id0e4f84eb5db91d6143f752b498f4832a5b25b6e
Diffstat (limited to 'compiler/driver/compiler_driver_test.cc')
| -rw-r--r-- | compiler/driver/compiler_driver_test.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/driver/compiler_driver_test.cc b/compiler/driver/compiler_driver_test.cc index 10bfd972f0..fee6afb91f 100644 --- a/compiler/driver/compiler_driver_test.cc +++ b/compiler/driver/compiler_driver_test.cc @@ -42,7 +42,9 @@ class CompilerDriverTest : public CommonCompilerTest { void CompileAll(jobject class_loader) REQUIRES(!Locks::mutator_lock_) { TimingLogger timings("CompilerDriverTest::CompileAll", false, false); TimingLogger::ScopedTiming t(__FUNCTION__, &timings); - compiler_driver_->CompileAll(class_loader, GetDexFiles(class_loader), &timings); + dex_files_ = GetDexFiles(class_loader); + compiler_driver_->SetDexFilesForOatFile(dex_files_);; + compiler_driver_->CompileAll(class_loader, dex_files_, &timings); t.NewTiming("MakeAllExecutable"); MakeAllExecutable(class_loader); } @@ -95,6 +97,7 @@ class CompilerDriverTest : public CommonCompilerTest { JNIEnv* env_; jclass class_; jmethodID mid_; + std::vector<const DexFile*> dex_files_; }; // Disabled due to 10 second runtime on host |