[AMQCPP-548] Too many temporary std::string in Mutex and decaf::lang::Integer::toString(int)

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.8.2
• Fix Version/s: 3.8.4, 3.9.0
• Component/s: Decaf
• Patch Info: Patch Available
• Assignee: Timothy A. Bish
• Reporter: Jeremy Leung
• Created: 18/Jul/14 02:35
• Updated: 06/Aug/14 22:34
• Resolved: 05/Aug/14 20:49

Description

Every Mutex will associated with a MutexProperties and the name of the Mutex is actually generated by the DEFAULT_NAME_PREFIX plus a call to Integer::toString( ++id ).

From the profiling of our application (highly multi-threaded), we found that many times are spent in the std::basic_string allocation and deallocation inside the functions decaf::lang::Integer::toString(int) and decaf::lang::Integer::toString(int, int).