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improve performance of memory allocator using builtin GCC functions #3
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Increased L_SFC_MAX_ELEM_SIZE from 512 to 2048 . |
This was referenced Dec 26, 2014
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This was referenced Dec 2, 2019
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Use FFS (http://en.wikipedia.org/wiki/Find_first_set) to improve performance on memory allocator, using GCC builtin functions __builtin_ffs and __builtin_clz . See https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html#Other-Builtins
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