forked from luck/tmp_suning_uos_patched
74a5293832
Use __builtin_clz() supported by GCC and Clang to figure out how many bits we should shift instead of shifting by a bit in a loop until the value gets normalized. Improves performance of this function by up to 3x in worst-case scenario and overall straw2 performance by ~10%. Reflects ceph.git commit 110de33ca497d94fc4737e5154d3fe781fa84a0a. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> |
||
|---|---|---|
| .. | ||
| crush_ln_table.h | ||
| crush.c | ||
| hash.c | ||
| mapper.c | ||