Split profile recording from jit compilation
We still use ProfileInfo objects to record profile information. That
gives us the flexibility to add the inline caches in the future and the
convenience of the already implemented GC.
If UseJIT is false and SaveProfilingInfo true, we will only record the
ProfileInfo and never launch compilation tasks.
Bug: 27916886
Change-Id: I6e4768dc5d58f2f85f947b276b4244aa11ce3fca
diff --git a/cmdline/cmdline_parser_test.cc b/cmdline/cmdline_parser_test.cc
index 81b854e..7c53e01 100644
--- a/cmdline/cmdline_parser_test.cc
+++ b/cmdline/cmdline_parser_test.cc
@@ -461,8 +461,8 @@
* Test successes
*/
{
- EXPECT_SINGLE_PARSE_VALUE(true, "-Xusejit:true", M::UseJIT);
- EXPECT_SINGLE_PARSE_VALUE(false, "-Xusejit:false", M::UseJIT);
+ EXPECT_SINGLE_PARSE_VALUE(true, "-Xusejit:true", M::UseJitCompilation);
+ EXPECT_SINGLE_PARSE_VALUE(false, "-Xusejit:false", M::UseJitCompilation);
}
{
EXPECT_SINGLE_PARSE_VALUE(
diff --git a/compiler/dex/verification_results.cc b/compiler/dex/verification_results.cc
index 1491a18..606302b 100644
--- a/compiler/dex/verification_results.cc
+++ b/compiler/dex/verification_results.cc
@@ -60,7 +60,7 @@
// TODO: Investigate why are we doing the work again for this method and try to avoid it.
LOG(WARNING) << "Method processed more than once: "
<< PrettyMethod(ref.dex_method_index, *ref.dex_file);
- if (!Runtime::Current()->UseJit()) {
+ if (!Runtime::Current()->UseJitCompilation()) {
DCHECK_EQ(it->second->GetDevirtMap().size(), verified_method->GetDevirtMap().size());
DCHECK_EQ(it->second->GetSafeCastSet().size(), verified_method->GetSafeCastSet().size());
}
diff --git a/compiler/dex/verified_method.cc b/compiler/dex/verified_method.cc
index 5c0253c..bace014 100644
--- a/compiler/dex/verified_method.cc
+++ b/compiler/dex/verified_method.cc
@@ -54,7 +54,8 @@
}
// Only need dequicken info for JIT so far.
- if (Runtime::Current()->UseJit() && !verified_method->GenerateDequickenMap(method_verifier)) {
+ if (Runtime::Current()->UseJitCompilation() &&
+ !verified_method->GenerateDequickenMap(method_verifier)) {
return nullptr;
}
}
@@ -72,7 +73,7 @@
}
const DexFileReference* VerifiedMethod::GetDequickenIndex(uint32_t dex_pc) const {
- DCHECK(Runtime::Current()->UseJit());
+ DCHECK(Runtime::Current()->UseJitCompilation());
auto it = dequicken_map_.find(dex_pc);
return (it != dequicken_map_.end()) ? &it->second : nullptr;
}
diff --git a/compiler/driver/compiler_driver.cc b/compiler/driver/compiler_driver.cc
index be82956..6cba8b7 100644
--- a/compiler/driver/compiler_driver.cc
+++ b/compiler/driver/compiler_driver.cc
@@ -473,7 +473,7 @@
const DexFile& dex_file, const DexFile::ClassDef& class_def)
SHARED_REQUIRES(Locks::mutator_lock_) {
auto* const runtime = Runtime::Current();
- if (runtime->UseJit() || driver.GetCompilerOptions().VerifyAtRuntime()) {
+ if (runtime->UseJitCompilation() || driver.GetCompilerOptions().VerifyAtRuntime()) {
// Verify at runtime shouldn't dex to dex since we didn't resolve of verify.
return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile;
}
@@ -1268,7 +1268,7 @@
bool CompilerDriver::CanAssumeClassIsLoaded(mirror::Class* klass) {
Runtime* runtime = Runtime::Current();
if (!runtime->IsAotCompiler()) {
- DCHECK(runtime->UseJit());
+ DCHECK(runtime->UseJitCompilation());
// Having the klass reference here implies that the klass is already loaded.
return true;
}
@@ -1289,7 +1289,7 @@
if ((IsBootImage() &&
IsImageClass(dex_cache->GetDexFile()->StringDataByIdx(
dex_cache->GetDexFile()->GetTypeId(type_idx).descriptor_idx_))) ||
- Runtime::Current()->UseJit()) {
+ Runtime::Current()->UseJitCompilation()) {
mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx);
result = (resolved_class != nullptr);
}
@@ -1307,7 +1307,7 @@
// See also Compiler::ResolveDexFile
bool result = false;
- if (IsBootImage() || Runtime::Current()->UseJit()) {
+ if (IsBootImage() || Runtime::Current()->UseJitCompilation()) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<1> hs(soa.Self());
ClassLinker* const class_linker = Runtime::Current()->GetClassLinker();
@@ -1319,7 +1319,7 @@
result = true;
} else {
// Just check whether the dex cache already has the string.
- DCHECK(Runtime::Current()->UseJit());
+ DCHECK(Runtime::Current()->UseJitCompilation());
result = (dex_cache->GetResolvedString(string_idx) != nullptr);
}
}
@@ -1427,7 +1427,7 @@
} else {
return false;
}
- } else if (runtime->UseJit() && !heap->IsMovableObject(resolved_class)) {
+ } else if (runtime->UseJitCompilation() && !heap->IsMovableObject(resolved_class)) {
*is_type_initialized = resolved_class->IsInitialized();
// If the class may move around, then don't embed it as a direct pointer.
*use_direct_type_ptr = true;
@@ -1604,7 +1604,7 @@
}
}
}
- if (runtime->UseJit()) {
+ if (runtime->UseJitCompilation()) {
// If we are the JIT, then don't allow a direct call to the interpreter bridge since this will
// never be updated even after we compile the method.
if (cl->IsQuickToInterpreterBridge(
@@ -1636,7 +1636,7 @@
bool must_use_direct_pointers = false;
mirror::DexCache* dex_cache = declaring_class->GetDexCache();
if (target_method->dex_file == dex_cache->GetDexFile() &&
- !(runtime->UseJit() && dex_cache->GetResolvedMethod(
+ !(runtime->UseJitCompilation() && dex_cache->GetResolvedMethod(
method->GetDexMethodIndex(), pointer_size) == nullptr)) {
target_method->dex_method_index = method->GetDexMethodIndex();
} else {
@@ -1673,7 +1673,7 @@
break;
}
}
- if (method_in_image || compiling_boot || runtime->UseJit()) {
+ if (method_in_image || compiling_boot || runtime->UseJitCompilation()) {
// We know we must be able to get to the method in the image, so use that pointer.
// In the case where we are the JIT, we can always use direct pointers since we know where
// the method and its code are / will be. We don't sharpen to interpreter bridge since we
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 45d23fe..197e473 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -5183,10 +5183,10 @@
case HLoadString::LoadKind::kBootImageAddress:
break;
case HLoadString::LoadKind::kDexCacheAddress:
- DCHECK(Runtime::Current()->UseJit());
+ DCHECK(Runtime::Current()->UseJitCompilation());
break;
case HLoadString::LoadKind::kDexCachePcRelative:
- DCHECK(!Runtime::Current()->UseJit());
+ DCHECK(!Runtime::Current()->UseJitCompilation());
// We disable pc-relative load when there is an irreducible loop, as the optimization
// is incompatible with it.
// TODO: Create as many ArmDexCacheArraysBase instructions as needed for methods
diff --git a/compiler/optimizing/code_generator_arm64.cc b/compiler/optimizing/code_generator_arm64.cc
index e8e6b68..9680f2b 100644
--- a/compiler/optimizing/code_generator_arm64.cc
+++ b/compiler/optimizing/code_generator_arm64.cc
@@ -4010,10 +4010,10 @@
case HLoadString::LoadKind::kBootImageAddress:
break;
case HLoadString::LoadKind::kDexCacheAddress:
- DCHECK(Runtime::Current()->UseJit());
+ DCHECK(Runtime::Current()->UseJitCompilation());
break;
case HLoadString::LoadKind::kDexCachePcRelative:
- DCHECK(!Runtime::Current()->UseJit());
+ DCHECK(!Runtime::Current()->UseJitCompilation());
break;
case HLoadString::LoadKind::kDexCacheViaMethod:
break;
diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc
index 1a4e62e..c8a510d 100644
--- a/compiler/optimizing/code_generator_x86.cc
+++ b/compiler/optimizing/code_generator_x86.cc
@@ -5975,7 +5975,7 @@
DCHECK(GetCompilerOptions().GetCompilePic());
FALLTHROUGH_INTENDED;
case HLoadString::LoadKind::kDexCachePcRelative:
- DCHECK(!Runtime::Current()->UseJit()); // Note: boot image is also non-JIT.
+ DCHECK(!Runtime::Current()->UseJitCompilation()); // Note: boot image is also non-JIT.
// We disable pc-relative load when there is an irreducible loop, as the optimization
// is incompatible with it.
// TODO: Create as many X86ComputeBaseMethodAddress instructions as needed for methods
@@ -5987,7 +5987,7 @@
case HLoadString::LoadKind::kBootImageAddress:
break;
case HLoadString::LoadKind::kDexCacheAddress:
- DCHECK(Runtime::Current()->UseJit());
+ DCHECK(Runtime::Current()->UseJitCompilation());
break;
case HLoadString::LoadKind::kDexCacheViaMethod:
break;
diff --git a/compiler/optimizing/code_generator_x86_64.cc b/compiler/optimizing/code_generator_x86_64.cc
index 59cc444..1540ea5 100644
--- a/compiler/optimizing/code_generator_x86_64.cc
+++ b/compiler/optimizing/code_generator_x86_64.cc
@@ -5411,10 +5411,10 @@
case HLoadString::LoadKind::kBootImageAddress:
break;
case HLoadString::LoadKind::kDexCacheAddress:
- DCHECK(Runtime::Current()->UseJit());
+ DCHECK(Runtime::Current()->UseJitCompilation());
break;
case HLoadString::LoadKind::kDexCachePcRelative:
- DCHECK(!Runtime::Current()->UseJit());
+ DCHECK(!Runtime::Current()->UseJitCompilation());
break;
case HLoadString::LoadKind::kDexCacheViaMethod:
break;
diff --git a/compiler/optimizing/inliner.cc b/compiler/optimizing/inliner.cc
index ff4b9a7..d98f828 100644
--- a/compiler/optimizing/inliner.cc
+++ b/compiler/optimizing/inliner.cc
@@ -308,7 +308,7 @@
// Check if we can use an inline cache.
ArtMethod* caller = graph_->GetArtMethod();
- if (Runtime::Current()->UseJit()) {
+ if (Runtime::Current()->UseJitCompilation()) {
// Under JIT, we should always know the caller.
DCHECK(caller != nullptr);
ScopedProfilingInfoInlineUse spiis(caller, soa.Self());
@@ -623,7 +623,7 @@
ArtMethod* resolved_method,
const InlineCache& ic) {
// This optimization only works under JIT for now.
- DCHECK(Runtime::Current()->UseJit());
+ DCHECK(Runtime::Current()->UseJitCompilation());
if (graph_->GetInstructionSet() == kMips64) {
// TODO: Support HClassTableGet for mips64.
return false;
@@ -802,7 +802,7 @@
if (!method->GetDeclaringClass()->IsVerified()) {
uint16_t class_def_idx = method->GetDeclaringClass()->GetDexClassDefIndex();
- if (Runtime::Current()->UseJit() ||
+ if (Runtime::Current()->UseJitCompilation() ||
!compiler_driver_->IsMethodVerifiedWithoutFailures(
method->GetDexMethodIndex(), class_def_idx, *method->GetDexFile())) {
VLOG(compiler) << "Method " << PrettyMethod(method_index, caller_dex_file)
diff --git a/compiler/optimizing/sharpening.cc b/compiler/optimizing/sharpening.cc
index 7a1bb31..08bd35f 100644
--- a/compiler/optimizing/sharpening.cc
+++ b/compiler/optimizing/sharpening.cc
@@ -99,7 +99,7 @@
if (direct_method != 0u) { // Should we use a direct pointer to the method?
// Note: For JIT, kDirectAddressWithFixup doesn't make sense at all and while
// kDirectAddress would be fine for image methods, we don't support it at the moment.
- DCHECK(!Runtime::Current()->UseJit());
+ DCHECK(!Runtime::Current()->UseJitCompilation());
if (direct_method != static_cast<uintptr_t>(-1)) { // Is the method pointer known now?
method_load_kind = HInvokeStaticOrDirect::MethodLoadKind::kDirectAddress;
method_load_data = direct_method;
@@ -109,7 +109,7 @@
} else { // Use dex cache.
DCHECK_EQ(target_method.dex_file, &graph_->GetDexFile());
if (use_pc_relative_instructions) { // Can we use PC-relative access to the dex cache arrays?
- DCHECK(!Runtime::Current()->UseJit());
+ DCHECK(!Runtime::Current()->UseJitCompilation());
method_load_kind = HInvokeStaticOrDirect::MethodLoadKind::kDexCachePcRelative;
DexCacheArraysLayout layout(GetInstructionSetPointerSize(codegen_->GetInstructionSet()),
&graph_->GetDexFile());
@@ -121,7 +121,7 @@
if (direct_code != 0u) { // Should we use a direct pointer to the code?
// Note: For JIT, kCallPCRelative and kCallDirectWithFixup don't make sense at all and
// while kCallDirect would be fine for image methods, we don't support it at the moment.
- DCHECK(!Runtime::Current()->UseJit());
+ DCHECK(!Runtime::Current()->UseJitCompilation());
if (direct_code != static_cast<uintptr_t>(-1)) { // Is the code pointer known now?
code_ptr_location = HInvokeStaticOrDirect::CodePtrLocation::kCallDirect;
direct_code_ptr = direct_code;
@@ -174,7 +174,7 @@
if (compiler_driver_->IsBootImage()) {
// Compiling boot image. Resolve the string and allocate it if needed.
- DCHECK(!runtime->UseJit());
+ DCHECK(!runtime->UseJitCompilation());
mirror::String* string = class_linker->ResolveString(dex_file, string_index, dex_cache);
CHECK(string != nullptr);
if (!compiler_driver_->GetSupportBootImageFixup()) {
@@ -187,7 +187,7 @@
? HLoadString::LoadKind::kBootImageLinkTimePcRelative
: HLoadString::LoadKind::kBootImageLinkTimeAddress;
}
- } else if (runtime->UseJit()) {
+ } else if (runtime->UseJitCompilation()) {
// TODO: Make sure we don't set the "compile PIC" flag for JIT as that's bogus.
// DCHECK(!codegen_->GetCompilerOptions().GetCompilePic());
mirror::String* string = dex_cache->GetResolvedString(string_index);
diff --git a/runtime/art_method.cc b/runtime/art_method.cc
index 34d19d1..06156f5 100644
--- a/runtime/art_method.cc
+++ b/runtime/art_method.cc
@@ -276,7 +276,7 @@
// Ensure that we won't be accidentally calling quick compiled code when -Xint.
if (kIsDebugBuild && runtime->GetInstrumentation()->IsForcedInterpretOnly()) {
- CHECK(!runtime->UseJit());
+ CHECK(!runtime->UseJitCompilation());
const void* oat_quick_code = runtime->GetClassLinker()->GetOatMethodQuickCodeFor(this);
CHECK(oat_quick_code == nullptr || oat_quick_code != GetEntryPointFromQuickCompiledCode())
<< "Don't call compiled code when -Xint " << PrettyMethod(this);
@@ -481,7 +481,7 @@
// to the JIT code, but this would require taking the JIT code cache lock to notify
// it, which we do not want at this level.
Runtime* runtime = Runtime::Current();
- if (runtime->GetJit() != nullptr) {
+ if (runtime->UseJitCompilation()) {
if (runtime->GetJit()->GetCodeCache()->ContainsPc(GetEntryPointFromQuickCompiledCode())) {
SetEntryPointFromQuickCompiledCodePtrSize(GetQuickToInterpreterBridge(), image_pointer_size);
}
diff --git a/runtime/class_linker.cc b/runtime/class_linker.cc
index 149601f..dc01d52 100644
--- a/runtime/class_linker.cc
+++ b/runtime/class_linker.cc
@@ -2044,6 +2044,7 @@
Runtime* const runtime = Runtime::Current();
JavaVMExt* const vm = runtime->GetJavaVM();
vm->DeleteWeakGlobalRef(self, data.weak_root);
+ // Notify the JIT that we need to remove the methods and/or profiling info.
if (runtime->GetJit() != nullptr) {
jit::JitCodeCache* code_cache = runtime->GetJit()->GetCodeCache();
if (code_cache != nullptr) {
@@ -2761,7 +2762,7 @@
}
if (runtime->IsNativeDebuggable()) {
- DCHECK(runtime->UseJit() && runtime->GetJit()->JitAtFirstUse());
+ DCHECK(runtime->UseJitCompilation() && runtime->GetJit()->JitAtFirstUse());
// If we are doing native debugging, ignore application's AOT code,
// since we want to JIT it with extra stackmaps for native debugging.
// On the other hand, keep all AOT code from the boot image, since the
diff --git a/runtime/gc/heap.cc b/runtime/gc/heap.cc
index c2f772f..df5aa0a 100644
--- a/runtime/gc/heap.cc
+++ b/runtime/gc/heap.cc
@@ -2687,8 +2687,8 @@
concurrent_start_bytes_ = std::numeric_limits<size_t>::max();
}
- if ((gc_type == collector::kGcTypeFull) && runtime->UseJit()) {
- // It's time to clear all inline caches, in case some classes can be unloaded.
+ // It's time to clear all inline caches, in case some classes can be unloaded.
+ if ((gc_type == collector::kGcTypeFull) && (runtime->GetJit() != nullptr)) {
runtime->GetJit()->GetCodeCache()->ClearGcRootsInInlineCaches(self);
}
diff --git a/runtime/jit/jit.cc b/runtime/jit/jit.cc
index 654cea0..1a5621e 100644
--- a/runtime/jit/jit.cc
+++ b/runtime/jit/jit.cc
@@ -51,7 +51,7 @@
JitOptions* JitOptions::CreateFromRuntimeArguments(const RuntimeArgumentMap& options) {
auto* jit_options = new JitOptions;
- jit_options->use_jit_ = options.GetOrDefault(RuntimeArgumentMap::UseJIT);
+ jit_options->use_jit_compilation_ = options.GetOrDefault(RuntimeArgumentMap::UseJitCompilation);
jit_options->code_cache_initial_capacity_ =
options.GetOrDefault(RuntimeArgumentMap::JITCodeCacheInitialCapacity);
@@ -130,9 +130,11 @@
cumulative_timings_("JIT timings"),
memory_use_("Memory used for compilation", 16),
lock_("JIT memory use lock"),
+ use_jit_compilation_(true),
save_profiling_info_(false) {}
Jit* Jit::Create(JitOptions* options, std::string* error_msg) {
+ DCHECK(options->UseJitCompilation() || options->GetSaveProfilingInfo());
std::unique_ptr<Jit> jit(new Jit);
jit->dump_info_on_shutdown_ = options->DumpJitInfoOnShutdown();
if (jit_compiler_handle_ == nullptr && !LoadCompiler(error_msg)) {
@@ -146,6 +148,7 @@
if (jit->GetCodeCache() == nullptr) {
return nullptr;
}
+ jit->use_jit_compilation_ = options->UseJitCompilation();
jit->save_profiling_info_ = options->GetSaveProfilingInfo();
VLOG(jit) << "JIT created with initial_capacity="
<< PrettySize(options->GetCodeCacheInitialCapacity())
@@ -225,6 +228,7 @@
}
bool Jit::CompileMethod(ArtMethod* method, Thread* self, bool osr) {
+ DCHECK(Runtime::Current()->UseJitCompilation());
DCHECK(!method->IsRuntimeMethod());
// Don't compile the method if it has breakpoints.
@@ -329,8 +333,12 @@
}
void Jit::NewTypeLoadedIfUsingJit(mirror::Class* type) {
+ if (!Runtime::Current()->UseJitCompilation()) {
+ // No need to notify if we only use the JIT to save profiles.
+ return;
+ }
jit::Jit* jit = Runtime::Current()->GetJit();
- if (jit != nullptr && jit->generate_debug_info_) {
+ if (jit->generate_debug_info_) {
DCHECK(jit->jit_types_loaded_ != nullptr);
jit->jit_types_loaded_(jit->jit_compiler_handle_, &type, 1);
}
@@ -604,22 +612,24 @@
}
// Avoid jumping more than one state at a time.
new_count = std::min(new_count, hot_method_threshold_ - 1);
- } else if (starting_count < hot_method_threshold_) {
- if ((new_count >= hot_method_threshold_) &&
- !code_cache_->ContainsPc(method->GetEntryPointFromQuickCompiledCode())) {
- DCHECK(thread_pool_ != nullptr);
- thread_pool_->AddTask(self, new JitCompileTask(method, JitCompileTask::kCompile));
- }
- // Avoid jumping more than one state at a time.
- new_count = std::min(new_count, osr_method_threshold_ - 1);
- } else if (starting_count < osr_method_threshold_) {
- if (!with_backedges) {
- // If the samples don't contain any back edge, we don't increment the hotness.
- return;
- }
- if ((new_count >= osr_method_threshold_) && !code_cache_->IsOsrCompiled(method)) {
- DCHECK(thread_pool_ != nullptr);
- thread_pool_->AddTask(self, new JitCompileTask(method, JitCompileTask::kCompileOsr));
+ } else if (use_jit_compilation_) {
+ if (starting_count < hot_method_threshold_) {
+ if ((new_count >= hot_method_threshold_) &&
+ !code_cache_->ContainsPc(method->GetEntryPointFromQuickCompiledCode())) {
+ DCHECK(thread_pool_ != nullptr);
+ thread_pool_->AddTask(self, new JitCompileTask(method, JitCompileTask::kCompile));
+ }
+ // Avoid jumping more than one state at a time.
+ new_count = std::min(new_count, osr_method_threshold_ - 1);
+ } else if (starting_count < osr_method_threshold_) {
+ if (!with_backedges) {
+ // If the samples don't contain any back edge, we don't increment the hotness.
+ return;
+ }
+ if ((new_count >= osr_method_threshold_) && !code_cache_->IsOsrCompiled(method)) {
+ DCHECK(thread_pool_ != nullptr);
+ thread_pool_->AddTask(self, new JitCompileTask(method, JitCompileTask::kCompileOsr));
+ }
}
}
// Update hotness counter
@@ -627,7 +637,8 @@
}
void Jit::MethodEntered(Thread* thread, ArtMethod* method) {
- if (UNLIKELY(Runtime::Current()->GetJit()->JitAtFirstUse())) {
+ Runtime* runtime = Runtime::Current();
+ if (UNLIKELY(runtime->UseJitCompilation() && runtime->GetJit()->JitAtFirstUse())) {
// The compiler requires a ProfilingInfo object.
ProfilingInfo::Create(thread, method, /* retry_allocation */ true);
JitCompileTask compile_task(method, JitCompileTask::kCompile);
diff --git a/runtime/jit/jit.h b/runtime/jit/jit.h
index 8198c18..954a1f7 100644
--- a/runtime/jit/jit.h
+++ b/runtime/jit/jit.h
@@ -87,6 +87,15 @@
return priority_thread_weight_;
}
+ // Returns false if we only need to save profile information and not compile methods.
+ bool UseJitCompilation() const {
+ return use_jit_compilation_;
+ }
+
+ bool SaveProfilingInfo() const {
+ return save_profiling_info_;
+ }
+
// Wait until there is no more pending compilation tasks.
void WaitForCompilationToFinish(Thread* self);
@@ -179,6 +188,7 @@
std::unique_ptr<jit::JitCodeCache> code_cache_;
+ bool use_jit_compilation_;
bool save_profiling_info_;
static bool generate_debug_info_;
uint16_t hot_method_threshold_;
@@ -218,22 +228,22 @@
bool GetSaveProfilingInfo() const {
return save_profiling_info_;
}
- bool UseJIT() const {
- return use_jit_;
+ bool UseJitCompilation() const {
+ return use_jit_compilation_;
}
- void SetUseJIT(bool b) {
- use_jit_ = b;
+ void SetUseJitCompilation(bool b) {
+ use_jit_compilation_ = b;
}
void SetSaveProfilingInfo(bool b) {
save_profiling_info_ = b;
}
void SetJitAtFirstUse() {
- use_jit_ = true;
+ use_jit_compilation_ = true;
compile_threshold_ = 0;
}
private:
- bool use_jit_;
+ bool use_jit_compilation_;
size_t code_cache_initial_capacity_;
size_t code_cache_max_capacity_;
size_t compile_threshold_;
@@ -244,7 +254,7 @@
bool save_profiling_info_;
JitOptions()
- : use_jit_(false),
+ : use_jit_compilation_(false),
code_cache_initial_capacity_(0),
code_cache_max_capacity_(0),
compile_threshold_(0),
diff --git a/runtime/jit/profile_saver.cc b/runtime/jit/profile_saver.cc
index 7a9d250..99b8dfc 100644
--- a/runtime/jit/profile_saver.cc
+++ b/runtime/jit/profile_saver.cc
@@ -285,7 +285,7 @@
const std::vector<std::string>& code_paths,
const std::string& foreign_dex_profile_path,
const std::string& app_data_dir) {
- DCHECK(Runtime::Current()->UseJit());
+ DCHECK(Runtime::Current()->SaveProfileInfo());
DCHECK(!output_filename.empty());
DCHECK(jit_code_cache != nullptr);
@@ -520,4 +520,32 @@
<< max_number_of_profile_entries_cached_ << '\n';
}
+
+void ProfileSaver::ForceProcessProfiles() {
+ ProfileSaver* saver = nullptr;
+ {
+ MutexLock mu(Thread::Current(), *Locks::profiler_lock_);
+ saver = instance_;
+ }
+ // TODO(calin): this is not actually thread safe as the instance_ may have been deleted,
+ // but we only use this in testing when we now this won't happen.
+ // Refactor the way we handle the instance so that we don't end up in this situation.
+ if (saver != nullptr) {
+ saver->ProcessProfilingInfo();
+ }
+}
+
+bool ProfileSaver::HasSeenMethod(const std::string& profile,
+ const DexFile* dex_file,
+ uint16_t method_idx) {
+ MutexLock mu(Thread::Current(), *Locks::profiler_lock_);
+ if (instance_ != nullptr) {
+ ProfileCompilationInfo* info = instance_->GetCachedProfiledInfo(profile);
+ if (info != nullptr) {
+ return info->ContainsMethod(MethodReference(dex_file, method_idx));
+ }
+ }
+ return false;
+}
+
} // namespace art
diff --git a/runtime/jit/profile_saver.h b/runtime/jit/profile_saver.h
index 0a222bf..4f3cdc2 100644
--- a/runtime/jit/profile_saver.h
+++ b/runtime/jit/profile_saver.h
@@ -49,6 +49,12 @@
// If the profile saver is running, dumps statistics to the `os`. Otherwise it does nothing.
static void DumpInstanceInfo(std::ostream& os);
+ // Just for testing purpose.
+ static void ForceProcessProfiles();
+ static bool HasSeenMethod(const std::string& profile,
+ const DexFile* dex_file,
+ uint16_t method_idx);
+
private:
ProfileSaver(const std::string& output_filename,
jit::JitCodeCache* jit_code_cache,
@@ -65,7 +71,10 @@
void Run() REQUIRES(!Locks::profiler_lock_, !wait_lock_);
// Processes the existing profiling info from the jit code cache and returns
// true if it needed to be saved to disk.
- bool ProcessProfilingInfo();
+ bool ProcessProfilingInfo()
+ REQUIRES(!Locks::profiler_lock_)
+ REQUIRES(!Locks::mutator_lock_);
+
// Returns true if the saver is shutting down (ProfileSaver::Stop() has been called).
bool ShuttingDown(Thread* self) REQUIRES(!Locks::profiler_lock_);
diff --git a/runtime/parsed_options.cc b/runtime/parsed_options.cc
index c8d4291..755159f 100644
--- a/runtime/parsed_options.cc
+++ b/runtime/parsed_options.cc
@@ -153,7 +153,7 @@
.Define("-Xusejit:_")
.WithType<bool>()
.WithValueMap({{"false", false}, {"true", true}})
- .IntoKey(M::UseJIT)
+ .IntoKey(M::UseJitCompilation)
.Define("-Xjitinitialsize:_")
.WithType<MemoryKiB>()
.IntoKey(M::JITCodeCacheInitialCapacity)
diff --git a/runtime/quick/inline_method_analyser.cc b/runtime/quick/inline_method_analyser.cc
index c7ccee2..1dea562 100644
--- a/runtime/quick/inline_method_analyser.cc
+++ b/runtime/quick/inline_method_analyser.cc
@@ -434,7 +434,7 @@
bool InlineMethodAnalyser::AnalyseMethodCode(verifier::MethodVerifier* verifier,
InlineMethod* result) {
DCHECK(verifier != nullptr);
- if (!Runtime::Current()->UseJit()) {
+ if (!Runtime::Current()->UseJitCompilation()) {
DCHECK_EQ(verifier->CanLoadClasses(), result != nullptr);
}
diff --git a/runtime/quick_exception_handler.cc b/runtime/quick_exception_handler.cc
index a785ecb..237fdaa 100644
--- a/runtime/quick_exception_handler.cc
+++ b/runtime/quick_exception_handler.cc
@@ -509,7 +509,7 @@
// Compiled code made an explicit deoptimization.
ArtMethod* deopt_method = visitor.GetSingleFrameDeoptMethod();
DCHECK(deopt_method != nullptr);
- if (Runtime::Current()->UseJit()) {
+ if (Runtime::Current()->UseJitCompilation()) {
Runtime::Current()->GetJit()->GetCodeCache()->InvalidateCompiledCodeFor(
deopt_method, visitor.GetSingleFrameDeoptQuickMethodHeader());
} else {
diff --git a/runtime/runtime.cc b/runtime/runtime.cc
index 5dbc6b3..6ba47e0 100644
--- a/runtime/runtime.cc
+++ b/runtime/runtime.cc
@@ -558,15 +558,21 @@
started_ = true;
- if (jit_options_->UseJIT()) {
+ // Create the JIT either if we have to use JIT compilation or save profiling info.
+ // TODO(calin): We use the JIT class as a proxy for JIT compilation and for
+ // recoding profiles. Maybe we should consider changing the name to be more clear it's
+ // not only about compiling. b/28295073.
+ if (jit_options_->UseJitCompilation() || jit_options_->GetSaveProfilingInfo()) {
std::string error_msg;
if (!IsZygote()) {
// If we are the zygote then we need to wait until after forking to create the code cache
// due to SELinux restrictions on r/w/x memory regions.
CreateJit();
- } else if (!jit::Jit::LoadCompilerLibrary(&error_msg)) {
- // Try to load compiler pre zygote to reduce PSS. b/27744947
- LOG(WARNING) << "Failed to load JIT compiler with error " << error_msg;
+ } else if (jit_options_->UseJitCompilation()) {
+ if (!jit::Jit::LoadCompilerLibrary(&error_msg)) {
+ // Try to load compiler pre zygote to reduce PSS. b/27744947
+ LOG(WARNING) << "Failed to load JIT compiler with error " << error_msg;
+ }
}
}
@@ -713,7 +719,11 @@
// before fork aren't attributed to an app.
heap_->ResetGcPerformanceInfo();
- if (!is_system_server && !safe_mode_ && jit_options_->UseJIT() && jit_.get() == nullptr) {
+
+ if (!is_system_server &&
+ !safe_mode_ &&
+ (jit_options_->UseJitCompilation() || jit_options_->GetSaveProfilingInfo()) &&
+ jit_.get() == nullptr) {
// Note that when running ART standalone (not zygote, nor zygote fork),
// the jit may have already been created.
CreateJit();
@@ -1016,7 +1026,8 @@
// this case.
// If runtime_options doesn't have UseJIT set to true then CreateFromRuntimeArguments returns
// null and we don't create the jit.
- jit_options_->SetUseJIT(false);
+ jit_options_->SetUseJitCompilation(false);
+ jit_options_->SetSaveProfilingInfo(false);
}
// Allocate a global table of boxed lambda objects <-> closures.
@@ -1985,4 +1996,14 @@
Thread::SetJitSensitiveThread();
}
+// Returns true if JIT compilations are enabled. GetJit() will be not null in this case.
+bool Runtime::UseJitCompilation() const {
+ return (jit_ != nullptr) && jit_->UseJitCompilation();
+}
+
+// Returns true if profile saving is enabled. GetJit() will be not null in this case.
+bool Runtime::SaveProfileInfo() const {
+ return (jit_ != nullptr) && jit_->SaveProfilingInfo();
+}
+
} // namespace art
diff --git a/runtime/runtime.h b/runtime/runtime.h
index c507129..908b295 100644
--- a/runtime/runtime.h
+++ b/runtime/runtime.h
@@ -127,7 +127,7 @@
// IsAotCompiler for compilers that don't have a running runtime. Only dex2oat currently.
bool IsAotCompiler() const {
- return !UseJit() && IsCompiler();
+ return !UseJitCompilation() && IsCompiler();
}
// IsCompiler is any runtime which has a running compiler, either dex2oat or JIT.
@@ -451,9 +451,11 @@
jit::Jit* GetJit() {
return jit_.get();
}
- bool UseJit() const {
- return jit_.get() != nullptr;
- }
+
+ // Returns true if JIT compilations are enabled. GetJit() will be not null in this case.
+ bool UseJitCompilation() const;
+ // Returns true if profile saving is enabled. GetJit() will be not null in this case.
+ bool SaveProfileInfo() const;
void PreZygoteFork();
bool InitZygote();
diff --git a/runtime/runtime_options.def b/runtime/runtime_options.def
index 6433c33..4e47953 100644
--- a/runtime/runtime_options.def
+++ b/runtime/runtime_options.def
@@ -66,7 +66,7 @@
RUNTIME_OPTIONS_KEY (Unit, LowMemoryMode)
RUNTIME_OPTIONS_KEY (bool, UseTLAB, (kUseTlab || kUseReadBarrier))
RUNTIME_OPTIONS_KEY (bool, EnableHSpaceCompactForOOM, true)
-RUNTIME_OPTIONS_KEY (bool, UseJIT, false)
+RUNTIME_OPTIONS_KEY (bool, UseJitCompilation, false)
RUNTIME_OPTIONS_KEY (bool, DumpNativeStackOnSigQuit, true)
RUNTIME_OPTIONS_KEY (unsigned int, JITCompileThreshold, jit::Jit::kDefaultCompileThreshold)
RUNTIME_OPTIONS_KEY (unsigned int, JITWarmupThreshold)
diff --git a/runtime/stack.cc b/runtime/stack.cc
index 56ef5aa..6fac0ba 100644
--- a/runtime/stack.cc
+++ b/runtime/stack.cc
@@ -637,8 +637,8 @@
// If we are the JIT then we may have just compiled the method after the
// IsQuickToInterpreterBridge check.
- jit::Jit* const jit = Runtime::Current()->GetJit();
- if (jit != nullptr && jit->GetCodeCache()->ContainsPc(code)) {
+ Runtime* runtime = Runtime::Current();
+ if (runtime->UseJitCompilation() && runtime->GetJit()->GetCodeCache()->ContainsPc(code)) {
return;
}
diff --git a/test/570-checker-osr/osr.cc b/test/570-checker-osr/osr.cc
index 2a5b2c9..bd8f0a9 100644
--- a/test/570-checker-osr/osr.cc
+++ b/test/570-checker-osr/osr.cc
@@ -75,7 +75,7 @@
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isInInterpreter(JNIEnv* env,
jclass,
jstring method_name) {
- if (!Runtime::Current()->UseJit()) {
+ if (!Runtime::Current()->UseJitCompilation()) {
// The return value is irrelevant if we're not using JIT.
return false;
}
@@ -111,7 +111,7 @@
extern "C" JNIEXPORT void JNICALL Java_Main_ensureHasProfilingInfo(JNIEnv* env,
jclass,
jstring method_name) {
- if (!Runtime::Current()->UseJit()) {
+ if (!Runtime::Current()->UseJitCompilation()) {
return;
}
ScopedUtfChars chars(env, method_name);
@@ -151,7 +151,7 @@
extern "C" JNIEXPORT void JNICALL Java_Main_ensureHasOsrCode(JNIEnv* env,
jclass,
jstring method_name) {
- if (!Runtime::Current()->UseJit()) {
+ if (!Runtime::Current()->UseJitCompilation()) {
return;
}
ScopedUtfChars chars(env, method_name);
diff --git a/test/595-profile-saving/expected.txt b/test/595-profile-saving/expected.txt
new file mode 100644
index 0000000..6a5618e
--- /dev/null
+++ b/test/595-profile-saving/expected.txt
@@ -0,0 +1 @@
+JNI_OnLoad called
diff --git a/test/595-profile-saving/info.txt b/test/595-profile-saving/info.txt
new file mode 100644
index 0000000..5d318f5
--- /dev/null
+++ b/test/595-profile-saving/info.txt
@@ -0,0 +1 @@
+Check that profile recording works even when JIT compilation is not enabled.
diff --git a/test/595-profile-saving/profile-saving.cc b/test/595-profile-saving/profile-saving.cc
new file mode 100644
index 0000000..a7e6f8b
--- /dev/null
+++ b/test/595-profile-saving/profile-saving.cc
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "dex_file.h"
+
+#include "jit/offline_profiling_info.h"
+#include "jit/profile_saver.h"
+#include "jni.h"
+#include "method_reference.h"
+#include "mirror/class-inl.h"
+#include "oat_file_assistant.h"
+#include "oat_file_manager.h"
+#include "scoped_thread_state_change.h"
+#include "ScopedUtfChars.h"
+#include "thread.h"
+
+namespace art {
+namespace {
+
+class CreateProfilingInfoVisitor : public StackVisitor {
+ public:
+ explicit CreateProfilingInfoVisitor(Thread* thread, const char* method_name)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ : StackVisitor(thread, nullptr, StackVisitor::StackWalkKind::kIncludeInlinedFrames),
+ method_name_(method_name) {}
+
+ bool VisitFrame() SHARED_REQUIRES(Locks::mutator_lock_) {
+ ArtMethod* m = GetMethod();
+ std::string m_name(m->GetName());
+
+ if (m_name.compare(method_name_) == 0) {
+ ProfilingInfo::Create(Thread::Current(), m, /* retry_allocation */ true);
+ method_index_ = m->GetDexMethodIndex();
+ return false;
+ }
+ return true;
+ }
+
+ int method_index_ = -1;
+ const char* const method_name_;
+};
+
+extern "C" JNIEXPORT jint JNICALL Java_Main_ensureProfilingInfo(JNIEnv* env,
+ jclass,
+ jstring method_name) {
+ ScopedUtfChars chars(env, method_name);
+ CHECK(chars.c_str() != nullptr);
+ ScopedObjectAccess soa(Thread::Current());
+ CreateProfilingInfoVisitor visitor(soa.Self(), chars.c_str());
+ visitor.WalkStack();
+ return visitor.method_index_;
+}
+
+extern "C" JNIEXPORT void JNICALL Java_Main_ensureProfileProcessing(JNIEnv*, jclass) {
+ ProfileSaver::ForceProcessProfiles();
+}
+
+extern "C" JNIEXPORT jboolean JNICALL Java_Main_presentInProfile(
+ JNIEnv* env, jclass cls, jstring filename, jint method_index) {
+ ScopedUtfChars filename_chars(env, filename);
+ CHECK(filename_chars.c_str() != nullptr);
+ ScopedObjectAccess soa(Thread::Current());
+ const DexFile* dex_file = soa.Decode<mirror::Class*>(cls)->GetDexCache()->GetDexFile();
+ return ProfileSaver::HasSeenMethod(std::string(filename_chars.c_str()),
+ dex_file,
+ static_cast<uint16_t>(method_index));
+}
+
+} // namespace
+} // namespace art
diff --git a/test/595-profile-saving/run b/test/595-profile-saving/run
new file mode 100644
index 0000000..f12fac9
--- /dev/null
+++ b/test/595-profile-saving/run
@@ -0,0 +1,28 @@
+#!/bin/bash
+#
+# Copyright 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Use
+# --compiler-filter=interpret-only to make sure that the test is not compiled AOT
+# -XOatFileManagerCompilerFilter:interpret-only to make sure the test is not compiled
+# when loaded (by PathClassLoader)
+# -Xjitsaveprofilinginfo to enable profile saving
+# -Xusejit:false to disable jit and only test profiles.
+exec ${RUN} \
+ -Xcompiler-option --compiler-filter=interpret-only \
+ --runtime-option -XOatFileManagerCompilerFilter:interpret-only \
+ --runtime-option -Xjitsaveprofilinginfo \
+ --runtime-option -Xusejit:false \
+ "${@}"
diff --git a/test/595-profile-saving/src/Main.java b/test/595-profile-saving/src/Main.java
new file mode 100644
index 0000000..039503f
--- /dev/null
+++ b/test/595-profile-saving/src/Main.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.Method;
+
+public class Main {
+
+ public static void main(String[] args) throws Exception {
+ System.loadLibrary(args[0]);
+
+ File file = null;
+ try {
+ file = createTempFile();
+ // String codePath = getDexBaseLocation();
+ String codePath = System.getenv("DEX_LOCATION") + "/595-profile-saving.jar";
+ VMRuntime.registerAppInfo(file.getPath(),
+ System.getenv("DEX_LOCATION"),
+ new String[] {codePath},
+ /* foreignProfileDir */ null);
+
+ int methodIdx = $opt$noinline$testProfile();
+ ensureProfileProcessing();
+ if (!presentInProfile(file.getPath(), methodIdx)) {
+ throw new RuntimeException("Method with index " + methodIdx + " not in the profile");
+ }
+ } finally {
+ if (file != null) {
+ file.delete();
+ }
+ }
+ }
+
+ public static int $opt$noinline$testProfile() {
+ if (doThrow) throw new Error();
+ // Make sure we have a profile info for this method without the need to loop.
+ return ensureProfilingInfo("$opt$noinline$testProfile");
+ }
+
+ // Return the dex method index.
+ public static native int ensureProfilingInfo(String methodName);
+ // Ensures the profile saver does its usual processing.
+ public static native void ensureProfileProcessing();
+ // Checks if the profiles saver knows about the method.
+ public static native boolean presentInProfile(String profile, int methodIdx);
+
+ public static boolean doThrow = false;
+ private static final String TEMP_FILE_NAME_PREFIX = "dummy";
+ private static final String TEMP_FILE_NAME_SUFFIX = "-file";
+
+ static native String getProfileInfoDump(
+ String filename);
+
+ private static File createTempFile() throws Exception {
+ try {
+ return File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
+ } catch (IOException e) {
+ System.setProperty("java.io.tmpdir", "/data/local/tmp");
+ try {
+ return File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
+ } catch (IOException e2) {
+ System.setProperty("java.io.tmpdir", "/sdcard");
+ return File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
+ }
+ }
+ }
+
+ private static class VMRuntime {
+ private static final Method registerAppInfoMethod;
+ static {
+ try {
+ Class<? extends Object> c = Class.forName("dalvik.system.VMRuntime");
+ registerAppInfoMethod = c.getDeclaredMethod("registerAppInfo",
+ String.class, String.class, String[].class, String.class);
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public static void registerAppInfo(String profile, String appDir,
+ String[] codePaths, String foreignDir) throws Exception {
+ registerAppInfoMethod.invoke(null, profile, appDir, codePaths, foreignDir);
+ }
+ }
+}
diff --git a/test/Android.libarttest.mk b/test/Android.libarttest.mk
index e547c72..464da2e 100644
--- a/test/Android.libarttest.mk
+++ b/test/Android.libarttest.mk
@@ -41,7 +41,8 @@
497-inlining-and-class-loader/clear_dex_cache.cc \
543-env-long-ref/env_long_ref.cc \
566-polymorphic-inlining/polymorphic_inline.cc \
- 570-checker-osr/osr.cc
+ 570-checker-osr/osr.cc \
+ 595-profile-saving/profile-saving.cc
ART_TARGET_LIBARTTEST_$(ART_PHONY_TEST_TARGET_SUFFIX) += $(ART_TARGET_TEST_OUT)/$(TARGET_ARCH)/libarttest.so
ART_TARGET_LIBARTTEST_$(ART_PHONY_TEST_TARGET_SUFFIX) += $(ART_TARGET_TEST_OUT)/$(TARGET_ARCH)/libarttestd.so
