A high-resolution stop watch. More...

Detailed Description

A high-resolution stop watch.

Stop-watch has some overhead, so use instantiate this too frequently (per sec-ms: fine. per us: mmm. per ns: oh god).

Definition at line 30 of file stop_watch.hpp.

#include <stop_watch.hpp>

Public Member Functions
	StopWatch ()

void	start ()
	Take current time tick. More...

uint64_t	stop ()
	Take another current time tick. More...

uint64_t	peek_elapsed_ns () const

uint64_t	elapsed_ns () const

double	elapsed_us () const

double	elapsed_ms () const

double	elapsed_sec () const

Constructor & Destructor Documentation

foedus::debugging::StopWatch::StopWatch ( )

inline

Definition at line 32 of file stop_watch.hpp.

References start().

32 : started_(0), stopped_(0) { start(); }

foedus::debugging::StopWatch::start

void start()

Take current time tick.

Definition: stop_watch.cpp:30

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Member Function Documentation

double foedus::debugging::StopWatch::elapsed_ms ( ) const

inline

Definition at line 48 of file stop_watch.hpp.

Referenced by foedus::storage::StorageManagerPimpl::clone_all_storage_metadata(), foedus::storage::array::ArrayComposer::compose(), foedus::storage::hash::HashComposer::compose(), foedus::storage::masstree::MasstreeComposer::compose(), foedus::storage::sequential::SequentialComposer::compose(), foedus::storage::masstree::MasstreeComposer::construct_root(), foedus::snapshot::SnapshotManagerPimpl::drop_volatile_pages(), foedus::snapshot::SnapshotManagerPimpl::drop_volatile_pages_parallel(), foedus::xct::XctManagerPimpl::handle_epoch_chime_wait_grace_period(), foedus::memory::PagePoolPimpl::initialize_once(), foedus::storage::StorageManagerPimpl::initialize_read_latest_snapshot(), foedus::snapshot::SnapshotManagerPimpl::read_snapshot_metadata(), foedus::storage::StorageManagerPimpl::reinitialize_for_recovered_snapshot(), foedus::snapshot::SnapshotManagerPimpl::snapshot_metadata(), foedus::storage::hash::HashPartitioner::sort_batch(), foedus::storage::array::ArrayPartitioner::sort_batch(), and foedus::memory::PagePoolPimpl::uninitialize_once().

                                  {
     return static_cast<double>(stopped_ - started_) / 1000000.0;
   }

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uint64_t foedus::debugging::StopWatch::elapsed_ns ( ) const

inline

Definition at line 42 of file stop_watch.hpp.

Referenced by foedus::memory::AlignedMemory::alloc(), foedus::xct::XctManagerPimpl::handle_epoch_chime_wait_grace_period(), and stop().

                                  {
     return stopped_ - started_;
   }

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double foedus::debugging::StopWatch::elapsed_sec ( ) const

inline

Definition at line 51 of file stop_watch.hpp.

Referenced by foedus::snapshot::SnapshotManagerPimpl::drop_volatile_pages_parallel(), foedus::snapshot::LogGleaner::execute(), and foedus::snapshot::LogMapper::handle_process().

                                   {
     return static_cast<double>(stopped_ - started_) / 1000000000.0;
   }

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double foedus::debugging::StopWatch::elapsed_us ( ) const

inline

Definition at line 45 of file stop_watch.hpp.

Referenced by foedus::storage::sequential::SequentialComposer::construct_root(), foedus::storage::masstree::design_partition_first_parallel(), foedus::cache::CacheHashtable::evict_main_loop(), foedus::cache::CacheHashtable::evict_overflow_loop(), foedus::storage::masstree::MasstreeStoragePimpl::fatify_first_root(), foedus::storage::masstree::MasstreeStoragePimpl::fatify_first_root_double(), foedus::cache::CacheManagerPimpl::handle_cleaner(), foedus::storage::array::ArrayStoragePimpl::prefetch_pages(), and foedus::storage::masstree::MasstreeStoragePimpl::prefetch_pages_normalized().

                                  {
     return static_cast<double>(stopped_ - started_) / 1000.0;
   }

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uint64_t foedus::debugging::StopWatch::peek_elapsed_ns ( ) const

Definition at line 39 of file stop_watch.cpp.

References foedus::debugging::get_now_nanosec().

                                           {
   return get_now_nanosec() - started_;
 }

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void foedus::debugging::StopWatch::start ( )

Take current time tick.

Definition at line 30 of file stop_watch.cpp.

References foedus::debugging::get_now_nanosec().

Referenced by foedus::storage::masstree::MasstreeStoragePimpl::fatify_first_root(), foedus::storage::masstree::MasstreeStoragePimpl::fatify_first_root_double(), foedus::snapshot::SnapshotManagerPimpl::snapshot_metadata(), and StopWatch().

                       {
   started_ = get_now_nanosec();
   stopped_ = started_;
 }

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uint64_t foedus::debugging::StopWatch::stop ( )

Take another current time tick.

Returns elapsed nanosec.

Definition at line 35 of file stop_watch.cpp.

References elapsed_ns(), and foedus::debugging::get_now_nanosec().

                          {
   stopped_ = get_now_nanosec();
   return elapsed_ns();
 }

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The documentation for this class was generated from the following files:

/home/shino/foedus_code/foedus-core/include/foedus/debugging/stop_watch.hpp
/home/shino/foedus_code/foedus-core/src/foedus/debugging/stop_watch.cpp

Detailed Description

Public Member Functions

Constructor & Destructor Documentation

Member Function Documentation