Aprof
by Devexperts
Aprof is a Java memory allocation profiler with very low performance impact on the profiled application that can be used (and is used) on a highly-loaded production server-side application. It acts as an agent which transforms class bytecode by inserting counter increments wherever memory allocation is done.It also keeps limited information about allocation context to aid to finding the memory allocation bottlenecks. See See short Tutorial for basic usage and examples.
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