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Add system option to disable lock profiling

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Disable lock profiling to test for overhead.

(cherry picked from commit 26a6427c44)

Bug: 133257467
Test: build
Merged-In: Ida5f83e626c82266de69b13dc2def0477cc87b0f
Change-Id: Ida5f83e626c82266de69b13dc2def0477cc87b0f
This commit is contained in:
David Sehr
2019-05-30 13:40:23 -07:00
committed by Andreas Gampe
parent fb9843f8d7
commit 0d1014c9e3
1 changed files with 16 additions and 0 deletions
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16
core/jni/AndroidRuntime.cpp
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@@ -250,6 +250,11 @@ static const char* ENABLE_APEX_IMAGE = "enable_apex_image";
// Flag to pass to the runtime when using the apex image.
static const char* kApexImageOption = "-Ximage:/system/framework/apex.art";
// Feature flag name for disabling lock profiling.
static const char* DISABLE_LOCK_PROFILING = "disable_lock_profiling";
// Runtime option disabling lock profiling.
static const char* kLockProfThresholdRuntimeOption = "-Xlockprofthreshold:0";
static AndroidRuntime* gCurRuntime = NULL;
/*
@@ -698,6 +703,17 @@ int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
ALOGI("Using default boot image");
}
std::string disable_lock_profiling =
server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
DISABLE_LOCK_PROFILING,
/*default_value=*/ "");
if (disable_lock_profiling == "true") {
addOption(kLockProfThresholdRuntimeOption);
ALOGI("Disabling lock profiling: '%s'\n", kLockProfThresholdRuntimeOption);
} else {
ALOGI("Leaving lock profiling enabled");
}
bool checkJni = false;
property_get("dalvik.vm.checkjni", propBuf, "");
if (strcmp(propBuf, "true") == 0) {