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easylogging++: faster access to logging 

Turns out getting the global shared_ptr hits the profile,
and passing it around still keeps it at close to ~1% CPU,
which is too much for mostly silent logging.

Leak the object instead, which is even safer for late logging.
This commit is contained in:
moneromooo-monero 2018-11-11 21:34:37 +00:00
parent 7cc27b367e
commit 721aacd88e
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GPG Key ID: 686F07454D6CEFC3
3 changed files with 19 additions and 2 deletions
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9
contrib/valgrind/monero.supp
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@ -17,3 +17,12 @@
fun:maybe_unlock_and_signal_one<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> >
...
}
{
we leak the logger, for performance reasons in on-the-fly init
Memcheck:Leak
match-leak-kinds: definite
fun:_Znwm
fun:_ZN2el4base7Storage7getELPPEv
...
}

6
external/easylogging++/easylogging++.cc vendored
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@ -2191,6 +2191,12 @@ void VRegistry::setFromArgs(const base::utils::CommandLineArgs* commandLineArgs)
# define ELPP_DEFAULT_LOGGING_FLAGS 0x0
#endif // !defined(ELPP_DEFAULT_LOGGING_FLAGS)
// Storage
el::base::type::StoragePointer &el::base::Storage::getELPP()
{
if (!el::base::elStorage)
el::base::elStorage = new el::base::Storage(el::LogBuilderPtr(new el::base::DefaultLogBuilder()));
return el::base::elStorage;
}
#if ELPP_ASYNC_LOGGING
Storage::Storage(const LogBuilderPtr& defaultLogBuilder, base::IWorker* asyncDispatchWorker) :
#else

6
external/easylogging++/easylogging++.h vendored
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@ -552,7 +552,7 @@ typedef std::ostream ostream_t;
typedef unsigned int EnumType;
typedef unsigned short VerboseLevel;
typedef unsigned long int LineNumber;
typedef std::shared_ptr<base::Storage> StoragePointer;
typedef base::Storage *StoragePointer;
typedef std::shared_ptr<LogDispatchCallback> LogDispatchCallbackPtr;
typedef std::shared_ptr<PerformanceTrackingCallback> PerformanceTrackingCallbackPtr;
typedef std::shared_ptr<LoggerRegistrationCallback> LoggerRegistrationCallbackPtr;
@ -2734,6 +2734,8 @@ class Storage : base::NoCopy, public base::threading::ThreadSafe {
return it->second;
}
static el::base::type::StoragePointer &getELPP();
private:
base::RegisteredHitCounters* m_registeredHitCounters;
base::RegisteredLoggers* m_registeredLoggers;
@ -2768,7 +2770,7 @@ class Storage : base::NoCopy, public base::threading::ThreadSafe {
}
};
extern ELPP_EXPORT base::type::StoragePointer elStorage;
#define ELPP el::base::elStorage
#define ELPP el::base::Storage::getELPP()
class DefaultLogDispatchCallback : public LogDispatchCallback {
protected:
void handle(const LogDispatchData* data);