kib
fd64376ccf
Micro-manage clang to get the expected inlining for cpu_search(). ...
Mark cpu_search_lowest/cpu_search_highest/cpu_search_both as noinline,
while cpu_search() gets always_inline. With the attributes set,
cpu_search() is inlined in wrappers, and if()s with constant
conditionals are optimized.
On some tests on many-core machine, the hwpmc reported samples for
cpu_search*() are reduced from 25% total to 9%.
Submitted by: "Rang, Anton" <anton.rang@isilon.com>
MFC after: 1 week
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fd64376ccf