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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "executorthreadingservice.h"
#include "threading_service_config.h"
#include <vespa/searchcore/proton/metrics/executor_threading_service_stats.h>
#include <vespa/vespalib/util/sequencedtaskexecutor.h>
#include <vespa/vespalib/util/singleexecutor.h>
#include <vespa/vespalib/util/blockingthreadstackexecutor.h>
using vespalib::SyncableThreadExecutor;
using vespalib::BlockingThreadStackExecutor;
using vespalib::SingleExecutor;
using vespalib::SequencedTaskExecutor;
using OptimizeFor = vespalib::Executor::OptimizeFor;
using SharedFieldWriterExecutor = proton::ThreadingServiceConfig::SharedFieldWriterExecutor;
namespace proton {
namespace {
std::unique_ptr<SyncableThreadExecutor>
createExecutorWithOneThread(uint32_t stackSize, uint32_t taskLimit, OptimizeFor optimize,
vespalib::Runnable::init_fun_t init_function) {
if (optimize == OptimizeFor::THROUGHPUT) {
return std::make_unique<SingleExecutor>(std::move(init_function), taskLimit);
} else {
return std::make_unique<BlockingThreadStackExecutor>(1, stackSize, taskLimit, std::move(init_function));
}
}
VESPA_THREAD_STACK_TAG(master_executor)
VESPA_THREAD_STACK_TAG(index_executor)
VESPA_THREAD_STACK_TAG(summary_executor)
VESPA_THREAD_STACK_TAG(index_field_inverter_executor)
VESPA_THREAD_STACK_TAG(index_field_writer_executor)
VESPA_THREAD_STACK_TAG(attribute_field_writer_executor)
VESPA_THREAD_STACK_TAG(field_writer_executor)
}
ExecutorThreadingService::ExecutorThreadingService(vespalib::ThreadExecutor &sharedExecutor, uint32_t num_treads)
: ExecutorThreadingService(sharedExecutor, ThreadingServiceConfig::make(num_treads))
{}
ExecutorThreadingService::ExecutorThreadingService(vespalib::ThreadExecutor& sharedExecutor,
const ThreadingServiceConfig& cfg,
uint32_t stackSize)
: _sharedExecutor(sharedExecutor),
_masterExecutor(1, stackSize, master_executor),
_master_task_limit(cfg.master_task_limit()),
_indexExecutor(createExecutorWithOneThread(stackSize, cfg.defaultTaskLimit(), cfg.optimize(), index_executor)),
_summaryExecutor(createExecutorWithOneThread(stackSize, cfg.defaultTaskLimit(), cfg.optimize(), summary_executor)),
_masterService(_masterExecutor),
_indexService(*_indexExecutor),
_summaryService(*_summaryExecutor),
_indexFieldInverter(),
_indexFieldWriter(),
_attributeFieldWriter(),
_field_writer(),
_index_field_inverter_ptr(),
_index_field_writer_ptr(),
_attribute_field_writer_ptr()
{
if (cfg.shared_field_writer() == SharedFieldWriterExecutor::INDEX) {
_field_writer = SequencedTaskExecutor::create(field_writer_executor, cfg.indexingThreads() * 2, cfg.defaultTaskLimit());
_attributeFieldWriter = SequencedTaskExecutor::create(attribute_field_writer_executor, cfg.indexingThreads(), cfg.defaultTaskLimit(),
cfg.optimize(), cfg.kindOfwatermark(), cfg.reactionTime());
_index_field_inverter_ptr = _field_writer.get();
_index_field_writer_ptr = _field_writer.get();
_attribute_field_writer_ptr = _attributeFieldWriter.get();
} else if (cfg.shared_field_writer() == SharedFieldWriterExecutor::INDEX_AND_ATTRIBUTE) {
_field_writer = SequencedTaskExecutor::create(field_writer_executor, cfg.indexingThreads() * 3, cfg.defaultTaskLimit(),
cfg.optimize(), cfg.kindOfwatermark(), cfg.reactionTime());
_index_field_inverter_ptr = _field_writer.get();
_index_field_writer_ptr = _field_writer.get();
_attribute_field_writer_ptr = _field_writer.get();
} else {
// TODO: Add support for shared field writer across all document dbs.
_indexFieldInverter = SequencedTaskExecutor::create(index_field_inverter_executor, cfg.indexingThreads(), cfg.defaultTaskLimit());
_indexFieldWriter = SequencedTaskExecutor::create(index_field_writer_executor, cfg.indexingThreads(), cfg.defaultTaskLimit());
_attributeFieldWriter = SequencedTaskExecutor::create(attribute_field_writer_executor, cfg.indexingThreads(), cfg.defaultTaskLimit(),
cfg.optimize(), cfg.kindOfwatermark(), cfg.reactionTime());
_index_field_inverter_ptr = _indexFieldInverter.get();
_index_field_writer_ptr = _indexFieldWriter.get();
_attribute_field_writer_ptr = _attributeFieldWriter.get();
}
}
ExecutorThreadingService::~ExecutorThreadingService() = default;
void
ExecutorThreadingService::sync_all_executors() {
// We have multiple patterns where task A posts to B which post back to A
for (size_t i = 0; i < 2; i++) {
syncOnce();
}
}
void
ExecutorThreadingService::blocking_master_execute(vespalib::Executor::Task::UP task)
{
uint32_t limit = master_task_limit();
if (limit > 0) {
_masterExecutor.wait_for_task_count(limit);
}
_masterExecutor.execute(std::move(task));
}
void
ExecutorThreadingService::syncOnce() {
bool isMasterThread = _masterService.isCurrentThread();
if (!isMasterThread) {
_masterExecutor.sync();
}
_attribute_field_writer_ptr->sync_all();
_indexExecutor->sync();
_summaryExecutor->sync();
_index_field_inverter_ptr->sync_all();
_index_field_writer_ptr->sync_all();
if (!isMasterThread) {
_masterExecutor.sync();
}
}
void
ExecutorThreadingService::shutdown()
{
_masterExecutor.shutdown();
_masterExecutor.sync();
_attribute_field_writer_ptr->sync_all();
_summaryExecutor->shutdown();
_summaryExecutor->sync();
_indexExecutor->shutdown();
_indexExecutor->sync();
_index_field_inverter_ptr->sync_all();
_index_field_writer_ptr->sync_all();
}
void
ExecutorThreadingService::set_task_limits(uint32_t master_task_limit,
uint32_t field_task_limit,
uint32_t summary_task_limit)
{
_master_task_limit.store(master_task_limit, std::memory_order_release);
_indexExecutor->setTaskLimit(field_task_limit);
_summaryExecutor->setTaskLimit(summary_task_limit);
_index_field_inverter_ptr->setTaskLimit(field_task_limit);
_index_field_writer_ptr->setTaskLimit(field_task_limit);
_attribute_field_writer_ptr->setTaskLimit(field_task_limit);
}
ExecutorThreadingServiceStats
ExecutorThreadingService::getStats()
{
return ExecutorThreadingServiceStats(_masterExecutor.getStats(),
_indexExecutor->getStats(),
_summaryExecutor->getStats(),
_sharedExecutor.getStats(),
_index_field_inverter_ptr->getStats(),
_index_field_writer_ptr->getStats(),
_attribute_field_writer_ptr->getStats());
}
vespalib::ISequencedTaskExecutor &
ExecutorThreadingService::indexFieldInverter() {
return *_index_field_inverter_ptr;
}
vespalib::ISequencedTaskExecutor &
ExecutorThreadingService::indexFieldWriter() {
return *_index_field_writer_ptr;
}
vespalib::ISequencedTaskExecutor &
ExecutorThreadingService::attributeFieldWriter() {
return *_attribute_field_writer_ptr;
}
} // namespace proton
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