'c++ thread local counter implement
I wanna implement a high performance counter in multi-thread process, like this, each thread has a thread local counter named "t_counter" to count query(incr 1/query) and in "timer thread" there is a counter named "global_counter", what I want is each second, global_counter will get each t_counter(s) and add them to global_counter, but I dont know how to get each t_counter value in "timer thread". additional, which section will thread local value lay in main memory ? .data or heap or other? how to dynamic allocate memory size(there maybe 10 thread or 100 thread) ? and does x86-64 use segment register store such value?
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