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Simon Marlow authored
Now that constructor info tables contain the name of the constructor, we can generate useful heap profiles without requiring the whole program and libraries to be compiled with -prof. So now, "+RTS -hT" generates a heap profile for any program, dividing the profile by constructor. It wouldn't be hard to add support for grouping constructors by module, or to restrict the profile to certain constructors/modules/packages. This means that for the first time we can get heap profiles for GHCi, which was previously impossible because the byte-code interpreter and linker don't work with -prof.
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