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VerboseHandlerOutput.cpp
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VerboseHandlerOutput.cpp
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/*******************************************************************************
* Copyright (c) 1991, 2020 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#include "AllocateDescription.hpp"
#include "AllocationStats.hpp"
#include "CycleState.hpp"
#include "EnvironmentBase.hpp"
#include "GCExtensionsBase.hpp"
#include "CollectionStatistics.hpp"
#include "ConcurrentPhaseStatsBase.hpp"
#include "ObjectAllocationInterface.hpp"
#include "ParallelDispatcher.hpp"
#include "VerboseHandlerOutput.hpp"
#include "VerboseManager.hpp"
#include "VerboseWriterChain.hpp"
#include "gcutils.h"
static void verboseHandlerInitialized(J9HookInterface** hook, uintptr_t eventNum, void* eventData, void* userData);
static void verboseHandlerHeapResize(J9HookInterface** hook, uintptr_t eventNum, void* eventData, void* userData);
MM_VerboseHandlerOutput *
MM_VerboseHandlerOutput::newInstance(MM_EnvironmentBase *env, MM_VerboseManager *manager)
{
MM_GCExtensionsBase* extensions = MM_GCExtensionsBase::getExtensions(env->getOmrVM());
MM_VerboseHandlerOutput *verboseHandlerOutput = (MM_VerboseHandlerOutput*)extensions->getForge()->allocate(sizeof(MM_VerboseHandlerOutput), OMR::GC::AllocationCategory::FIXED, OMR_GET_CALLSITE());
if (NULL != verboseHandlerOutput) {
new(verboseHandlerOutput) MM_VerboseHandlerOutput(extensions);
if(!verboseHandlerOutput->initialize(env, manager)) {
verboseHandlerOutput->kill(env);
verboseHandlerOutput = NULL;
}
}
return verboseHandlerOutput;
}
MM_VerboseHandlerOutput::MM_VerboseHandlerOutput(MM_GCExtensionsBase *extensions) :
_reportingLock()
,_extensions(extensions)
,_omrVM(NULL)
,_mmPrivateHooks(NULL)
,_mmOmrHooks(NULL)
,_manager(NULL)
{}
bool
MM_VerboseHandlerOutput::initialize(MM_EnvironmentBase *env, MM_VerboseManager *manager)
{
_omrVM = env->getOmrVM();
_mmPrivateHooks = J9_HOOK_INTERFACE(_extensions->privateHookInterface);
_mmOmrHooks = J9_HOOK_INTERFACE(_extensions->omrHookInterface);
_manager = manager;
if (!_reportingLock.initialize(env, &env->getExtensions()->lnrlOptions, "MM_VerboseHandlerOutput:_reportingLock")) {
return false;
}
return true;
}
void
MM_VerboseHandlerOutput::kill(MM_EnvironmentBase *env)
{
tearDown(env);
_extensions->getForge()->free(this);
}
void
MM_VerboseHandlerOutput::tearDown(MM_EnvironmentBase *env)
{
_reportingLock.tearDown();
return ;
}
void
MM_VerboseHandlerOutput::enableVerbose()
{
/* Initialized */
(*_mmOmrHooks)->J9HookRegisterWithCallSite(_mmOmrHooks, J9HOOK_MM_OMR_INITIALIZED, verboseHandlerInitialized, OMR_GET_CALLSITE(), (void *)this);
(*_mmPrivateHooks)->J9HookRegisterWithCallSite(_mmPrivateHooks, J9HOOK_MM_PRIVATE_HEAP_RESIZE, verboseHandlerHeapResize, OMR_GET_CALLSITE(), (void *)this);
return ;
}
void
MM_VerboseHandlerOutput::disableVerbose()
{
/* Initialized */
(*_mmOmrHooks)->J9HookUnregister(_mmOmrHooks, J9HOOK_MM_OMR_INITIALIZED, verboseHandlerInitialized, NULL);
(*_mmPrivateHooks)->J9HookUnregister(_mmPrivateHooks, J9HOOK_MM_PRIVATE_HEAP_RESIZE, verboseHandlerHeapResize, NULL);
return ;
}
bool
MM_VerboseHandlerOutput::getThreadName(char *buf, uintptr_t bufLen, OMR_VMThread *vmThread)
{
OMRPORT_ACCESS_FROM_OMRVM(_omrVM);
omrstr_printf(buf, bufLen, "OMR_VMThread [%p]",vmThread);
return true;
}
void
MM_VerboseHandlerOutput::writeVmArgs(MM_EnvironmentBase* env)
{
/* TODO (stefanbu) OMR does not support argument parsing yet, but we should repsect schema.*/
MM_VerboseWriterChain* writer = _manager->getWriterChain();
writer->formatAndOutput(env, 1, "<vmargs>");
writer->formatAndOutput(env, 1, "</vmargs>");
}
uintptr_t
MM_VerboseHandlerOutput::getTagTemplate(char *buf, uintptr_t bufsize, uint64_t wallTimeMs)
{
OMRPORT_ACCESS_FROM_OMRVM(_omrVM);
uintptr_t bufPos = 0;
bufPos += omrstr_printf(buf, bufsize, "timestamp=\"");
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_PRE_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "%03llu", wallTimeMs % 1000);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_POST_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "\"");
return bufPos;
}
uintptr_t
MM_VerboseHandlerOutput::getTagTemplate(char *buf, uintptr_t bufsize, uintptr_t id, uint64_t wallTimeMs)
{
OMRPORT_ACCESS_FROM_OMRVM(_omrVM);
uintptr_t bufPos = 0;
bufPos += omrstr_printf(buf, bufsize, "id=\"%zu\" timestamp=\"", id);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_PRE_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "%03llu", wallTimeMs % 1000);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_POST_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "\"");
return bufPos;
}
uintptr_t
MM_VerboseHandlerOutput::getTagTemplate(char *buf, uintptr_t bufsize, uintptr_t id, const char *type, uintptr_t contextId, uint64_t wallTimeMs)
{
OMRPORT_ACCESS_FROM_OMRVM(_omrVM);
uintptr_t bufPos = 0;
bufPos += omrstr_printf(buf, bufsize, "id=\"%zu\" type=\"%s\" contextid=\"%zu\" timestamp=\"", id, type, contextId);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_PRE_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "%03llu", wallTimeMs % 1000);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_POST_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "\"");
return bufPos;
}
uintptr_t
MM_VerboseHandlerOutput::getTagTemplateWithOldType(char *buf, uintptr_t bufsize, uintptr_t id, const char *oldType, const char *newType, uintptr_t contextId, uint64_t wallTimeMs)
{
OMRPORT_ACCESS_FROM_OMRVM(_omrVM);
uintptr_t bufPos = 0;
bufPos += omrstr_printf(buf, bufsize, "id=\"%zu\" oldtype=\"%s\" newtype=\"%s\" contextid=\"%zu\" timestamp=\"", id, oldType, newType, contextId);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_PRE_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "%03llu", wallTimeMs % 1000);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_POST_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "\"");
return bufPos;
}
uintptr_t
MM_VerboseHandlerOutput::getTagTemplate(char *buf, uintptr_t bufsize, uintptr_t id, const char *type, uintptr_t contextId, uint64_t timeus, uint64_t wallTimeMs)
{
OMRPORT_ACCESS_FROM_OMRVM(_omrVM);
uintptr_t bufPos = 0;
bufPos += omrstr_printf(buf, bufsize, "id=\"%zu\" type=\"%s\" timems=\"%llu.%03.3llu\" contextid=\"%zu\" timestamp=\"", id, type, timeus / 1000, timeus % 1000, contextId);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_PRE_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "%03llu", wallTimeMs % 1000);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_POST_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "\"");
return bufPos;
}
uintptr_t
MM_VerboseHandlerOutput::getTagTemplateWithDuration(char *buf, uintptr_t bufsize, uintptr_t id, const char *type, uintptr_t contextId, uint64_t durationus, uint64_t usertimeus, uint64_t cputimeus, uint64_t wallTimeMs, uint64_t stalltimeus)
{
OMRPORT_ACCESS_FROM_OMRVM(_omrVM);
uintptr_t bufPos = 0;
bufPos += omrstr_printf(buf, bufsize, "id=\"%zu\" type=\"%s\" contextid=\"%zu\" durationms=\"%llu.%03.3llu\" usertimems=\"%llu.%03.3llu\" systemtimems=\"%llu.%03.3llu\" stalltimems=\"%llu.%03.3llu\" timestamp=\"",
id, type, contextId, durationus / 1000, durationus % 1000, usertimeus / 1000, usertimeus % 1000, cputimeus / 1000, cputimeus % 1000, stalltimeus / 1000, stalltimeus % 1000);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_PRE_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "%03llu", wallTimeMs % 1000);
bufPos += omrstr_ftime(buf + bufPos, bufsize - bufPos, VERBOSEGC_DATE_FORMAT_POST_MS, wallTimeMs);
bufPos += omrstr_printf(buf + bufPos, bufsize - bufPos, "\"");
return bufPos;
}
void
MM_VerboseHandlerOutput::handleInitializedInnerStanzas(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
return;
}
void
MM_VerboseHandlerOutput::handleInitializedRegion(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_InitializedEvent* event = (MM_InitializedEvent*)eventData;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
#if defined(OMR_GC_DOUBLE_MAP_ARRAYLETS)
bool isArrayletDoubleMapRequested = _extensions->isArrayletDoubleMapRequested;
const char *arrayletDoubleMappingStatus = _extensions->indexableObjectModel.isDoubleMappingEnabled() ? "enabled" : "disabled";
const char *arrayletDoubleMappingRequested = isArrayletDoubleMapRequested ? "true" : "false";
#endif /* OMR_GC_DOUBLE_MAP_ARRAYLETS */
writer->formatAndOutput(env, 1, "<region>");
writer->formatAndOutput(env, 2, "<attribute name=\"regionSize\" value=\"%zu\" />", event->regionSize);
writer->formatAndOutput(env, 2, "<attribute name=\"regionCount\" value=\"%zu\" />", event->regionCount);
writer->formatAndOutput(env, 2, "<attribute name=\"arrayletLeafSize\" value=\"%zu\" />", event->arrayletLeafSize);
#if defined(OMR_GC_DOUBLE_MAP_ARRAYLETS)
if (_extensions->isVLHGC()) {
writer->formatAndOutput(env, 2, "<attribute name=\"arrayletDoubleMappingRequested\" value=\"%s\"/>", arrayletDoubleMappingRequested);
if (isArrayletDoubleMapRequested) {
writer->formatAndOutput(env, 2, "<attribute name=\"arrayletDoubleMapping\" value=\"%s\"/>", arrayletDoubleMappingStatus);
}
}
#endif /* OMR_GC_DOUBLE_MAP_ARRAYLETS */
writer->formatAndOutput(env, 1, "</region>");
}
void
MM_VerboseHandlerOutput::handleInitialized(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_InitializedEvent* event = (MM_InitializedEvent*)eventData;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
char tagTemplate[200];
_manager->setInitializedTime(event->timestamp);
getTagTemplate(tagTemplate, sizeof(tagTemplate), _manager->getIdAndIncrement(), omrtime_current_time_millis());
enterAtomicReportingBlock();
writer->formatAndOutput(env, 0, "<initialized %s>", tagTemplate);
writer->formatAndOutput(env, 1, "<attribute name=\"gcPolicy\" value=\"%s\" />", event->gcPolicy);
#if defined(OMR_GC_CONCURRENT_SCAVENGER)
if (_extensions->isConcurrentScavengerEnabled()) {
writer->formatAndOutput(env, 1, "<attribute name=\"concurrentScavenger\" value=\"%s\" />",
#if defined(S390) || defined(J9ZOS390)
_extensions->concurrentScavengerHWSupport ?
"enabled, with H/W assistance" :
"enabled, without H/W assistance");
#else /* defined(S390) || defined(J9ZOS390) */
"enabled");
#endif /* defined(S390) || defined(J9ZOS390) */
}
#endif /* OMR_GC_CONCURRENT_SCAVENGER */
writer->formatAndOutput(env, 1, "<attribute name=\"maxHeapSize\" value=\"0x%zx\" />", event->maxHeapSize);
writer->formatAndOutput(env, 1, "<attribute name=\"initialHeapSize\" value=\"0x%zx\" />", event->initialHeapSize);
#if defined(OMR_GC_COMPRESSED_POINTERS)
if (env->compressObjectReferences()) {
writer->formatAndOutput(env, 1, "<attribute name=\"compressedRefs\" value=\"true\" />");
writer->formatAndOutput(env, 1, "<attribute name=\"compressedRefsDisplacement\" value=\"0x%zx\" />", 0);
writer->formatAndOutput(env, 1, "<attribute name=\"compressedRefsShift\" value=\"0x%zx\" />", event->compressedPointersShift);
} else
#endif /* defined(OMR_GC_COMPRESSED_POINTERS) */
{
writer->formatAndOutput(env, 1, "<attribute name=\"compressedRefs\" value=\"false\" />");
}
writer->formatAndOutput(env, 1, "<attribute name=\"pageSize\" value=\"0x%zx\" />", event->heapPageSize);
writer->formatAndOutput(env, 1, "<attribute name=\"pageType\" value=\"%s\" />", event->heapPageType);
writer->formatAndOutput(env, 1, "<attribute name=\"requestedPageSize\" value=\"0x%zx\" />", event->heapRequestedPageSize);
writer->formatAndOutput(env, 1, "<attribute name=\"requestedPageType\" value=\"%s\" />", event->heapRequestedPageType);
writer->formatAndOutput(env, 1, "<attribute name=\"gcthreads\" value=\"%zu\" />", event->gcThreads);
if (gc_policy_gencon == _extensions->configurationOptions._gcPolicy) {
#if defined(OMR_GC_CONCURRENT_SCAVENGER)
if (_extensions->isConcurrentScavengerEnabled()) {
writer->formatAndOutput(env, 1, "<attribute name=\"gcthreads Concurrent Scavenger\" value=\"%zu\" />", _extensions->concurrentScavengerBackgroundThreads);
}
#endif /* OMR_GC_CONCURRENT_SCAVENGER */
#if defined(OMR_GC_MODRON_CONCURRENT_MARK)
if (_extensions->isConcurrentMarkEnabled()) {
writer->formatAndOutput(env, 1, "<attribute name=\"gcthreads Concurrent Mark\" value=\"%zu\" />", _extensions->concurrentBackground);
}
#endif /* OMR_GC_MODRON_CONCURRENT_MARK */
}
writer->formatAndOutput(env, 1, "<attribute name=\"packetListSplit\" value=\"%zu\" />", _extensions->packetListSplit);
#if defined(OMR_GC_MODRON_SCAVENGER)
writer->formatAndOutput(env, 1, "<attribute name=\"cacheListSplit\" value=\"%zu\" />", _extensions->cacheListSplit);
#endif /* OMR_GC_MODRON_SCAVENGER */
writer->formatAndOutput(env, 1, "<attribute name=\"splitFreeListSplitAmount\" value=\"%zu\" />", _extensions->splitFreeListSplitAmount);
writer->formatAndOutput(env, 1, "<attribute name=\"numaNodes\" value=\"%zu\" />", event->numaNodes);
handleInitializedInnerStanzas(hook, eventNum, eventData);
writer->formatAndOutput(env, 1, "<system>");
writer->formatAndOutput(env, 2, "<attribute name=\"physicalMemory\" value=\"%llu\" />", event->physicalMemory);
writer->formatAndOutput(env, 2, "<attribute name=\"numCPUs\" value=\"%zu\" />", event->numCPUs);
writer->formatAndOutput(env, 2, "<attribute name=\"architecture\" value=\"%s\" />", event->architecture);
writer->formatAndOutput(env, 2, "<attribute name=\"os\" value=\"%s\" />", event->os);
writer->formatAndOutput(env, 2, "<attribute name=\"osVersion\" value=\"%s\" />", event->osVersion);
writer->formatAndOutput(env, 1, "</system>");
writeVmArgs(env);
writer->formatAndOutput(env, 0, "</initialized>\n");
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleCycleStart(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_GCCycleStartEvent* event = (MM_GCCycleStartEvent*)eventData;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->omrVMThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
uint64_t currentTime = event->timestamp;
uint64_t previousTime = 0;
switch (env->_cycleState->_type) {
case OMR_GC_CYCLE_TYPE_DEFAULT:
break;
case OMR_GC_CYCLE_TYPE_GLOBAL:
previousTime = _manager->getLastGlobalGCTime();
_manager->setLastGlobalGCTime(currentTime);
break;
case OMR_GC_CYCLE_TYPE_SCAVENGE:
previousTime = _manager->getLastLocalGCTime();
_manager->setLastLocalGCTime(currentTime);
break;
case OMR_GC_CYCLE_TYPE_VLHGC_PARTIAL_GARBAGE_COLLECT:
previousTime = _manager->getLastPartialGCTime();
_manager->setLastPartialGCTime(currentTime);
break;
case OMR_GC_CYCLE_TYPE_VLHGC_GLOBAL_MARK_PHASE:
previousTime = _manager->getLastGlobalMarkGCTime();
_manager->setLastGlobalMarkGCTime(currentTime);
break;
case OMR_GC_CYCLE_TYPE_VLHGC_GLOBAL_GARBAGE_COLLECT:
previousTime = _manager->getLastBalancedGlobalGCTime();
_manager->setLastBalancedGlobalGCTime(currentTime);
break;
}
if (0 == previousTime) {
previousTime = _manager->getInitializedTime();
}
uint64_t deltaTime = 0;
bool deltaTimeSuccess = getTimeDeltaInMicroSeconds(&deltaTime, previousTime, currentTime);
const char* cycleType = getCurrentCycleType(env);
char tagTemplate[200];
uintptr_t id = _manager->getIdAndIncrement();
env->_cycleState->_verboseContextID = id;
getTagTemplate(tagTemplate, sizeof(tagTemplate), id, cycleType, 0 /* Needs context id */, omrtime_current_time_millis());
enterAtomicReportingBlock();
if (!deltaTimeSuccess) {
writer->formatAndOutput(env, 0, "<warning details=\"clock error detected, following timing may be inaccurate\" />");
}
if(hasCycleStartInnerStanzas()) {
writer->formatAndOutput(env, 0, "<cycle-start %s intervalms=\"%llu.%03llu\">", tagTemplate, deltaTime / 1000 , deltaTime % 1000);
handleCycleStartInnerStanzas(hook, eventNum, eventData, 1);
writer->formatAndOutput(env, 0, "</cycle-start>");
} else {
writer->formatAndOutput(env, 0, "<cycle-start %s intervalms=\"%llu.%03llu\" />", tagTemplate, deltaTime / 1000 , deltaTime % 1000);
}
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleCycleContinue(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_GCCycleContinueEvent* event = (MM_GCCycleContinueEvent*)eventData;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->omrVMThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
const char* newCycleType = getCurrentCycleType(env);
const char* oldCycleType = getCycleType(event->oldCycleType);
char tagTemplate[200];
getTagTemplateWithOldType(tagTemplate, sizeof(tagTemplate), _manager->getIdAndIncrement(), oldCycleType, newCycleType, env->_cycleState->_verboseContextID, omrtime_current_time_millis());
enterAtomicReportingBlock();
writer->formatAndOutput(env, 0, "<cycle-continue %s />", tagTemplate);
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleCycleEnd(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_GCPostCycleEndEvent* event = (MM_GCPostCycleEndEvent*)eventData;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
const char* cycleType = getCurrentCycleType(env);
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), _manager->getIdAndIncrement(), cycleType, env->_cycleState->_verboseContextID, omrtime_current_time_millis());
enterAtomicReportingBlock();
if(hasCycleEndInnerStanzas()) {
writer->formatAndOutput(env, 0, "<cycle-end %s>", tagTemplate);
handleCycleEndInnerStanzas(hook, eventNum, eventData, 1);
writer->formatAndOutput(env, 0, "</cycle-end>");
} else {
writer->formatAndOutput(env, 0, "<cycle-end %s />", tagTemplate);
}
writer->flush(env);
exitAtomicReportingBlock();
}
bool
MM_VerboseHandlerOutput::hasCycleStartInnerStanzas()
{
return false;
}
void
MM_VerboseHandlerOutput::handleCycleStartInnerStanzas(J9HookInterface** hook, uintptr_t eventNum, void* eventData, uintptr_t indentDepth)
{
/* do nothing */
}
bool
MM_VerboseHandlerOutput::hasCycleEndInnerStanzas()
{
return false;
}
void
MM_VerboseHandlerOutput::handleCycleEndInnerStanzas(J9HookInterface** hook, uintptr_t eventNum, void* eventData, uintptr_t indentDepth)
{
/* do nothing */
}
const char *
MM_VerboseHandlerOutput::getCycleType(uintptr_t type)
{
return "unknown";
}
const char *
MM_VerboseHandlerOutput::getCurrentCycleType(MM_EnvironmentBase *env) {
return getCycleType(env->_cycleState->_type);
}
void
MM_VerboseHandlerOutput::handleExclusiveStart(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_ExclusiveAccessAcquireEvent* event = (MM_ExclusiveAccessAcquireEvent*)eventData;
MM_VerboseManager* manager = getManager();
MM_VerboseWriterChain* writer = manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
uint64_t exclusiveAccessTime = omrtime_hires_delta(0, event->exclusiveAccessTime, OMRPORT_TIME_DELTA_IN_MICROSECONDS);
uint64_t meanIdleTime = omrtime_hires_delta(0, event->meanIdleTime, OMRPORT_TIME_DELTA_IN_MICROSECONDS);
uint64_t currentTime = event->timestamp;
uint64_t previousTime = manager->getLastExclusiveAccessStartTime();
if (0 == previousTime) {
previousTime = manager->getInitializedTime();
}
uint64_t deltaTime = 0;
bool deltaTimeSuccess = getTimeDeltaInMicroSeconds(&deltaTime, previousTime, currentTime);
manager->setLastExclusiveAccessStartTime(currentTime);
OMR_VMThread* lastResponder = event->lastResponder;
char escapedLastResponderName[64];
getThreadName(escapedLastResponderName,sizeof(escapedLastResponderName),lastResponder);
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), manager->getIdAndIncrement(), omrtime_current_time_millis());
enterAtomicReportingBlock();
if (!deltaTimeSuccess) {
writer->formatAndOutput(env, 0, "<warning details=\"clock error detected, following timing may be inaccurate\" />");
}
writer->formatAndOutput(env, 0, "<exclusive-start %s intervalms=\"%llu.%03.3llu\">", tagTemplate, deltaTime / 1000, deltaTime % 1000);
writer->formatAndOutput(env, 1, "<response-info timems=\"%llu.%03.3llu\" idlems=\"%llu.%03.3llu\" threads=\"%zu\" lastid=\"%p\" lastname=\"%s\" />",
exclusiveAccessTime / 1000, exclusiveAccessTime % 1000, meanIdleTime / 1000, meanIdleTime % 1000, event->haltedThreads, (NULL == lastResponder ? NULL : lastResponder->_language_vmthread), escapedLastResponderName);
writer->formatAndOutput(env, 0, "</exclusive-start>");
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleExclusiveEnd(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_ExclusiveAccessReleaseEvent* event = (MM_ExclusiveAccessReleaseEvent*)eventData;
MM_VerboseManager* manager = getManager();
MM_VerboseWriterChain* writer = manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
uint64_t currentTime = event->timestamp;
uint64_t startTime = manager->getLastExclusiveAccessStartTime();
manager->setLastExclusiveAccessEndTime(currentTime);
uint64_t deltaTime = 0;
bool deltaTimeSuccess = getTimeDeltaInMicroSeconds(&deltaTime, startTime, currentTime);
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), manager->getIdAndIncrement(), omrtime_current_time_millis());
enterAtomicReportingBlock();
if (!deltaTimeSuccess) {
writer->formatAndOutput(env, 0, "<warning details=\"clock error detected, following timing may be inaccurate\" />");
}
writer->formatAndOutput(env, 0, "<exclusive-end %s durationms=\"%llu.%03llu\" />", tagTemplate, deltaTime / 1000, deltaTime % 1000);
writer->formatAndOutput(env, 0, "");
writer->flush(env);
writer->endOfCycle(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleSystemGCStart(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_SystemGCStartEvent* event = (MM_SystemGCStartEvent*)eventData;
MM_VerboseManager* manager = getManager();
MM_VerboseWriterChain* writer = manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
uint64_t currentTime = event->timestamp;
uint64_t previousTime = manager->getLastSystemGCTime();
if (0 == previousTime) {
previousTime = manager->getInitializedTime();
}
uint64_t deltaTime = 0;
bool deltaTimeSuccess = getTimeDeltaInMicroSeconds(&deltaTime, previousTime, currentTime);
manager->setLastSystemGCTime(currentTime);
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), manager->getIdAndIncrement(), omrtime_current_time_millis());
enterAtomicReportingBlock();
if (!deltaTimeSuccess) {
writer->formatAndOutput(env, 0, "<warning details=\"clock error detected, following timing may be inaccurate\" />");
}
writer->formatAndOutput(env, 0, "<sys-start reason=\"%s\" %s intervalms=\"%llu.%03llu\" />", getSystemGCReasonAsString(event->gcCode), tagTemplate, deltaTime / 1000 , deltaTime % 1000);
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleSystemGCEnd(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_SystemGCEndEvent* event = (MM_SystemGCEndEvent*)eventData;
MM_VerboseManager* manager = getManager();
MM_VerboseWriterChain* writer = manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), manager->getIdAndIncrement(), omrtime_current_time_millis());
enterAtomicReportingBlock();
writer->formatAndOutput(env, 0, "<sys-end %s />", tagTemplate);
writer->flush(env);
exitAtomicReportingBlock();
}
bool
MM_VerboseHandlerOutput::hasAllocationFailureStartInnerStanzas()
{
return false;
}
void
MM_VerboseHandlerOutput::handleAllocationFailureStartInnerStanzas(J9HookInterface** hook, uintptr_t eventNum, void* eventData, uintptr_t indentDepth)
{
}
void
MM_VerboseHandlerOutput::handleAllocationFailureStart(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_AllocationFailureStartEvent* event = (MM_AllocationFailureStartEvent*)eventData;
MM_VerboseManager* manager = getManager();
MM_VerboseWriterChain* writer = manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
uint64_t currentTime = event->timestamp;
uint64_t previousTime = manager->getLastAllocationFailureTime();
manager->setLastAllocationFailureTime(currentTime);
if (0 == previousTime) {
previousTime = manager->getInitializedTime();
}
uint64_t deltaTime = 0;
bool deltaTimeSuccess = getTimeDeltaInMicroSeconds(&deltaTime, previousTime, currentTime);
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), omrtime_current_time_millis());
enterAtomicReportingBlock();
if (!deltaTimeSuccess) {
writer->formatAndOutput(env, 0, "<warning details=\"clock error detected, following timing may be inaccurate\" />");
}
const char *endOfTag = hasAllocationFailureStartInnerStanzas()? ">" : "/>";
if (gc_policy_gencon == _extensions->configurationOptions._gcPolicy) {
writer->formatAndOutput(env, 0, "<af-start id=\"%zu\" threadId=\"%p\" totalBytesRequested=\"%zu\" %s intervalms=\"%llu.%03llu\" type=\"%s\" %s", manager->getIdAndIncrement(), event->currentThread, event->requestedBytes, tagTemplate, deltaTime / 1000 , deltaTime % 1000, event->tenure? "tenure" : "nursery", endOfTag);
} else {
writer->formatAndOutput(env, 0, "<af-start id=\"%zu\" threadId=\"%p\" totalBytesRequested=\"%zu\" %s intervalms=\"%llu.%03llu\" %s", manager->getIdAndIncrement(), event->currentThread, event->requestedBytes, tagTemplate, deltaTime / 1000 , deltaTime % 1000, endOfTag);
}
if (hasAllocationFailureStartInnerStanzas()) {
handleAllocationFailureStartInnerStanzas(hook, eventNum, eventData, 1);
writer->formatAndOutput(env, 0, "</af-start>");
}
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleFailedAllocationCompleted(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_FailedAllocationCompleted* event = (MM_FailedAllocationCompleted*)eventData;
MM_VerboseManager* manager = getManager();
MM_VerboseWriterChain* writer = manager->getWriterChain();
OMR_VMThread *currentThread = event->currentThread;
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
char tagTemplate[200];
enterAtomicReportingBlock();
getTagTemplate(tagTemplate, sizeof(tagTemplate), omrtime_current_time_millis());
uintptr_t id = manager->getIdAndIncrement();
uintptr_t bytesRequested = event->bytesRequested;
if (TRUE == event->succeeded) {
writer->formatAndOutput(env, 0, "<allocation-satisfied id=\"%zu\" threadId=\"%p\" bytesRequested=\"%zu\" />", id, currentThread->_language_vmthread, bytesRequested, tagTemplate);
} else {
writer->formatAndOutput(env, 0, "<allocation-unsatisfied id=\"%zu\" threadId=\"%p\" bytesRequested=\"%zu\" />", id, currentThread->_language_vmthread, bytesRequested, tagTemplate);
}
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleAllocationFailureEnd(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_AllocationFailureEndEvent* event = (MM_AllocationFailureEndEvent*)eventData;
MM_AllocateDescription *allocDescription = event->allocDescription;
MM_VerboseManager* manager = getManager();
MM_VerboseWriterChain* writer = manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), manager->getIdAndIncrement(), omrtime_current_time_millis());
const bool succeeded = allocDescription->getAllocationSucceeded();
const char *successString = succeeded? "true" : "false";
enterAtomicReportingBlock();
if ((gc_policy_gencon == _extensions->configurationOptions._gcPolicy) && succeeded) {
const char *region;
if (allocDescription->isNurseryAllocation()) {
region = "nursery";
} else if (_extensions->largeObjectArea){
region = allocDescription->isLOAAllocation()? "tenure-loa" : "tenure-soa";
} else {
region = "tenure";
}
writer->formatAndOutput(env, 0, "<af-end %s threadId=\"%p\" success=\"%s\" from=\"%s\"/>", tagTemplate, event->currentThread, successString, region);
} else {
writer->formatAndOutput(env, 0, "<af-end %s threadId=\"%p\" success=\"%s\" />", tagTemplate, event->currentThread, successString);
}
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleAcquiredExclusiveToSatisfyAllocation(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_AcquiredExclusiveToSatisfyAllocation * event = (MM_AcquiredExclusiveToSatisfyAllocation *)eventData;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_OMRPORT(env->getPortLibrary());
uintptr_t indentLevel = _manager->getIndentLevel();
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), _manager->getIdAndIncrement(), omrtime_current_time_millis());
enterAtomicReportingBlock();
writer->formatAndOutput(env, indentLevel, "<event %s>", tagTemplate);
writer->formatAndOutput(env, indentLevel + 1, "<warning details=\"exclusive access acquired to satisfy allocation\" />");
writer->formatAndOutput(env, indentLevel, "</event>");
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::enterAtomicReportingBlock()
{
_reportingLock.acquire();
}
void
MM_VerboseHandlerOutput::exitAtomicReportingBlock()
{
_reportingLock.release();
}
void
MM_VerboseHandlerOutput::outputMemoryInfo(MM_EnvironmentBase *env, uintptr_t indent, MM_CollectionStatistics *stats)
{
MM_VerboseWriterChain* writer = _manager->getWriterChain();
uintptr_t freeMemory = stats->_totalFreeHeapSize;
uintptr_t totalMemory = stats->_totalHeapSize;
if (hasOutputMemoryInfoInnerStanza()) {
writer->formatAndOutput(env, indent, "<mem-info id=\"%zu\" free=\"%zu\" total=\"%zu\" percent=\"%zu\">",
_manager->getIdAndIncrement(), freeMemory, totalMemory,
((totalMemory == 0) ? 0 : ((uintptr_t)(((uint64_t)freeMemory*100) / (uint64_t)totalMemory))));
outputMemoryInfoInnerStanza(env, indent + 1, stats);
writer->formatAndOutput(env, indent, "</mem-info>");
} else {
writer->formatAndOutput(env, indent, "<mem-info id=\"%zu\" free=\"%zu\" total=\"%zu\" percent=\"%zu\" />",
_manager->getIdAndIncrement(), freeMemory, totalMemory,
((totalMemory == 0) ? 0 : ((uintptr_t)(((uint64_t)freeMemory*100) / (uint64_t)totalMemory))));
}
writer->flush(env);
}
bool
MM_VerboseHandlerOutput::hasOutputMemoryInfoInnerStanza()
{
return false;
}
void
MM_VerboseHandlerOutput::outputMemoryInfoInnerStanza(MM_EnvironmentBase *env, uintptr_t indent, MM_CollectionStatistics *stats)
{
}
void
MM_VerboseHandlerOutput::printAllocationStats(MM_EnvironmentBase* env)
{
MM_VerboseWriterChain* writer = _manager->getWriterChain();
OMR_VMThread * vmThreadAllocatedMost = _extensions->vmThreadAllocatedMost;
MM_AllocationStats* systemStats = &_extensions->allocationStats;
bool consumedEntireThreadName = false;
OMRPORT_ACCESS_FROM_OMRPORT(env->getPortLibrary());
enterAtomicReportingBlock();
writer->formatAndOutput(env, 0, "<allocation-stats totalBytes=\"%zu\" >", systemStats->bytesAllocated());
if (_extensions->isVLHGC()) {
#if defined(OMR_GC_VLHGC)
writer->formatAndOutput(env, 1, "<allocated-bytes non-tlh=\"%zu\" tlh=\"%zu\" arrayletleaf=\"%zu\"/>",
systemStats->nontlhBytesAllocated(), systemStats->tlhBytesAllocated(), systemStats->_arrayletLeafAllocationBytes);
#endif /* OMR_GC_VLHGC */
} else if (_extensions->isStandardGC()) {
#if defined(OMR_GC_MODRON_STANDARD)
writer->formatAndOutput(env, 1, "<allocated-bytes non-tlh=\"%zu\" tlh=\"%zu\" />", systemStats->nontlhBytesAllocated(), systemStats->tlhBytesAllocated());
#endif /* OMR_GC_MODRON_STANDARD */
} else {
/* for now, not covered the case of specs that do not have TLHs, but have arraylets */
}
if(0 != _extensions->bytesAllocatedMost){
const char *dots = "";
char escapedThreadName[128];
void *threadID = NULL;
if (NULL != vmThreadAllocatedMost) {
consumedEntireThreadName = getThreadName(escapedThreadName, sizeof(escapedThreadName), vmThreadAllocatedMost);
dots = consumedEntireThreadName ? "" : "...";
threadID = vmThreadAllocatedMost->_language_vmthread;
} else {
omrstr_printf(escapedThreadName, sizeof(escapedThreadName), "unknown thread");
}
writer->formatAndOutput(env, 1, "<largest-consumer threadName=\"%s%s\" threadId=\"%p\" bytes=\"%zu\" />", escapedThreadName, dots, threadID, _extensions->bytesAllocatedMost);
}
writer->formatAndOutput(env, 0, "</allocation-stats>");
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleGCStart(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_GCIncrementStartEvent * event = (MM_GCIncrementStartEvent *)eventData;
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_CollectionStatistics *stats = (MM_CollectionStatistics *)event->stats;
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), _manager->getIdAndIncrement(), getCurrentCycleType(env), env->_cycleState->_verboseContextID, omrtime_current_time_millis());
enterAtomicReportingBlock();
writer->formatAndOutput(env, 0, "<gc-start %s>", tagTemplate);
outputMemoryInfo(env, _manager->getIndentLevel() + 1, stats);
writer->formatAndOutput(env, 0, "</gc-start>");
exitAtomicReportingBlock();
printAllocationStats(env);
}
void
MM_VerboseHandlerOutput::handleGCEnd(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_GCIncrementEndEvent * event = (MM_GCIncrementEndEvent *)eventData;
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_CollectionStatistics *stats = (MM_CollectionStatistics *)event->stats;
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
uint64_t durationInMicroseconds = 0;
uint64_t userTimeInMicroseconds = 0;
uint64_t systemTimeInMicroseconds = 0;
uint64_t stallTimeInMicroseconds = 0;
/* convert from nanoseconds to microseconds, compiler should autocast lvalue (int64_t) to rvalue (uint64_t) but just incase */
uint64_t startUserTime = (uint64_t)stats->_startProcessTimes._userTime / 1000;
uint64_t startSystemTime = (uint64_t)stats->_startProcessTimes._systemTime / 1000;
uint64_t endUserTime = (uint64_t)stats->_endProcessTimes._userTime / 1000;
uint64_t endSystemTime = (uint64_t)stats->_endProcessTimes._systemTime / 1000;
bool getDurationTimeSuccessful = getTimeDeltaInMicroSeconds(&durationInMicroseconds, stats->_startTime, stats->_endTime);
bool getUserTimeSuccessful = getTimeDelta(&userTimeInMicroseconds, startUserTime, endUserTime);
bool getSystemTimeSuccessful = getTimeDelta(&systemTimeInMicroseconds, startSystemTime, endSystemTime);
bool getStallTimeSuccessful = getTimeDeltaInMicroSeconds(&stallTimeInMicroseconds, 0, stats->_stallTime);
char tagTemplate[200];
getTagTemplateWithDuration( tagTemplate, sizeof(tagTemplate), _manager->getIdAndIncrement(),
getCurrentCycleType(env), env->_cycleState->_verboseContextID,
durationInMicroseconds, userTimeInMicroseconds, systemTimeInMicroseconds,
omrtime_current_time_millis(), stallTimeInMicroseconds);
uintptr_t activeThreads = env->getExtensions()->dispatcher->activeThreadCount();
enterAtomicReportingBlock();
if (!getDurationTimeSuccessful || !getUserTimeSuccessful || !getSystemTimeSuccessful || !getStallTimeSuccessful) {
writer->formatAndOutput(env, 0, "<warning details=\"clock error detected, following timing may be inaccurate\" />");
}
writer->formatAndOutput(env, 0, "<gc-end %s activeThreads=\"%zu\">", tagTemplate, activeThreads);
outputMemoryInfo(env, _manager->getIndentLevel() + 1, stats);
writer->formatAndOutput(env, 0, "</gc-end>");
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleConcurrentStart(J9HookInterface** hook, UDATA eventNum, void* eventData)
{
MM_ConcurrentPhaseStartEvent *event = (MM_ConcurrentPhaseStartEvent *)eventData;
MM_ConcurrentPhaseStatsBase *stats = (MM_ConcurrentPhaseStatsBase *)event->concurrentStats;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase *env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
UDATA contextId = stats->_cycleID;
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), _manager->getIdAndIncrement(), getConcurrentTypeString(), contextId, omrtime_current_time_millis());
enterAtomicReportingBlock();
writer->formatAndOutput(env, 0, "<concurrent-start %s>", tagTemplate);
handleConcurrentStartInternal(hook, eventNum, eventData);
writer->formatAndOutput(env, 0, "</concurrent-start>");
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleConcurrentEndInternal(J9HookInterface** hook, UDATA eventNum, void* eventData)
{
MM_ConcurrentPhaseEndEvent *event = (MM_ConcurrentPhaseEndEvent *)eventData;
MM_ConcurrentPhaseStatsBase *stats = (MM_ConcurrentPhaseStatsBase *)event->concurrentStats;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase *env = MM_EnvironmentBase::getEnvironment(event->currentThread);
const char *reasonForTermination = NULL;
if (stats->isTerminationRequested()) {
if (stats->isTerminationRequestExternal()) {
/* For example, Java JVMTI and similar. Unfortunately, we could not tell what. */
reasonForTermination = "termination requested externally";
} else {
/* Most interesting reason would be exhausted allocate/survivor, since it could mean that
* tilting is too aggressive (and survival rate is jittery), and suggest tilt tuning/limiting.
* There could be various other reasons, like STW global GC (system, end of concurrent mark etc.),
* or even notorious 'exclusive VM access to satisfy allocate'.
* Either way, the more detailed reason could be deduced from verbose GC.
*/
reasonForTermination = "termination requested by GC";
}
writer->formatAndOutput(env, 0, "<warning details=\"%s\" />", reasonForTermination, _extensions->gcExclusiveAccessThreadId);
}
}
void
MM_VerboseHandlerOutput::handleConcurrentEnd(J9HookInterface** hook, UDATA eventNum, void* eventData)
{
MM_ConcurrentPhaseEndEvent *event = (MM_ConcurrentPhaseEndEvent *)eventData;
MM_ConcurrentPhaseStatsBase *stats = (MM_ConcurrentPhaseStatsBase *)event->concurrentStats;
MM_VerboseWriterChain* writer = _manager->getWriterChain();
MM_EnvironmentBase *env = MM_EnvironmentBase::getEnvironment(event->currentThread);
OMRPORT_ACCESS_FROM_ENVIRONMENT(env);
UDATA contextId = stats->_cycleID;
char tagTemplate[200];
getTagTemplate(tagTemplate, sizeof(tagTemplate), _manager->getIdAndIncrement(), getConcurrentTypeString(), contextId, omrtime_current_time_millis());
enterAtomicReportingBlock();
writer->formatAndOutput(env, 0, "<concurrent-end %s>", tagTemplate);
handleConcurrentEndInternal(hook, eventNum, eventData);
handleConcurrentGCOpEnd(hook, eventNum, eventData);
writer->formatAndOutput(env, 0, "</concurrent-end>\n");
writer->flush(env);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::handleHeapResize(J9HookInterface** hook, uintptr_t eventNum, void* eventData)
{
MM_HeapResizeEvent * event = (MM_HeapResizeEvent *)eventData;
MM_EnvironmentBase* env = MM_EnvironmentBase::getEnvironment(event->currentThread);
HeapResizeType resizeType = (HeapResizeType) event->resizeType;
uintptr_t resizeAmount = event->amount;
uintptr_t subSpaceType = event->subSpaceType;
uint64_t timeInMicroSeconds = event->timeTaken;
uintptr_t reason = event->reason;
uintptr_t resizeCount = 1;
if ((0 == resizeAmount) || ((HEAP_EXPAND == resizeType) && (SATISFY_COLLECTOR == (ExpandReason)reason))) {
/* The SATISFY_COLLECTOR output will be handled by the copy forward collectors directly */
return;
}
enterAtomicReportingBlock();
outputHeapResizeInfo(env, _manager->getIndentLevel(), resizeType, resizeAmount, resizeCount, subSpaceType, reason, timeInMicroSeconds);
exitAtomicReportingBlock();
}
void
MM_VerboseHandlerOutput::outputHeapResizeInfo(MM_EnvironmentBase *env, uintptr_t indent, HeapResizeType resizeType, uintptr_t resizeAmount, uintptr_t resizeCount, uintptr_t subSpaceType, uintptr_t reason, uint64_t timeInMicroSeconds)
{
OMRPORT_ACCESS_FROM_OMRPORT(env->getPortLibrary());
MM_VerboseWriterChain* writer = _manager->getWriterChain();
uintptr_t id = _manager->getIdAndIncrement();
const char *reasonString = NULL;
const char *resizeTypeName = NULL;
char tagTemplate[200];
if (HEAP_EXPAND == resizeType) {
resizeTypeName = "expand";
reasonString = getExpandReasonAsString((ExpandReason)reason);
} else if (HEAP_CONTRACT == resizeType) {
resizeTypeName = "contract";
reasonString = getContractReasonAsString((ContractReason)reason);
} else if (HEAP_LOA_EXPAND == resizeType) {
resizeTypeName = "loa expand";
reasonString = getLoaResizeReasonAsString((LoaResizeReason)reason);
} else if (HEAP_LOA_CONTRACT == resizeType) {
resizeTypeName = "loa contract";
reasonString = getLoaResizeReasonAsString((LoaResizeReason)reason);
} else if (HEAP_RELEASE_FREE_PAGES == resizeType) {
resizeTypeName = "release free pages";
reasonString = "idle";
} else {
resizeTypeName = "unknown";
reasonString = "unknown";
}
getTagTemplate(tagTemplate, sizeof(tagTemplate), omrtime_current_time_millis());
writer->formatAndOutput(env, indent, "<heap-resize id=\"%zu\" type=\"%s\" space=\"%s\" amount=\"%zu\" count=\"%zu\" timems=\"%llu.%03llu\" reason=\"%s\" %s />", id, resizeTypeName, getSubSpaceType(subSpaceType), resizeAmount, resizeCount, timeInMicroSeconds / 1000, timeInMicroSeconds % 1000, reasonString, tagTemplate);
writer->flush(env);
}
void
MM_VerboseHandlerOutput::outputCollectorHeapResizeInfo(MM_EnvironmentBase *env, uintptr_t indent, HeapResizeType resizeType, uintptr_t resizeAmount, uintptr_t resizeCount, uintptr_t subSpaceType, uintptr_t reason, uint64_t timeInMicroSeconds)
{
OMRPORT_ACCESS_FROM_OMRPORT(env->getPortLibrary());
MM_VerboseWriterChain* writer = _manager->getWriterChain();
const char *reasonString = NULL;