Website Description: http://www.valgrind.org/
Valgrind is a instrumentation framework for building dynamic analysis tools. There is Valgrind tools that can automatically detect many memory management and threading bugs, and profile your Pro Grams in detail. You can also use Valgrind to build new tools.
The Valgrind distribution currently includes six production-quality TOOLS:A memory error detector, both thread error Detec Tors, a cache and Branch-prediction Profiler, a call-graph generating cache and Branch-prediction Profiler, and a heap pro Filer. It also includes three experimental tools:a Stack/global array overrun detector, a second heap profiler that examines how Heap blocks is used, and a Simpoint basic block vector generator. It runs on the following platforms:x86/linux, Amd64/linux, Arm/linux, Arm64/linux, Ppc32/linux, Ppc64/linux, PPC64BE/Linu X, S390x/linux, Mips32/linux, Mips64/linux, Arm/android (2.3.x and later), X86/android (4.0 and later), Mips32/android, X8 6/darwin and Amd64/darwin (Mac OS X 10.9, with limited support for 10.8).
Memory Checker tool Valgrind