4 Commits

Author	SHA1	Message	Date
Joseph Myers	f7a9f785e5	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
Rajalakshmi Srinivasaraghavan	98408b95b1	powerpc: POWER7 strncpy optimization for unaligned string ... This patch optimizes strncpy for power7 for unaligned source or destination address. The source or destination address is aligned to doubleword and data is shifted based on the alignment and added with the previous loaded data to be written as a doubleword. For each load, cmpb instruction is used for faster null check. The new optimization shows 10 to 70% of performance improvement for longer string though it does not show big difference on string size less than 16 due to additional checks.Hence this new algorithm is restricted to string greater than 16.	2015-02-12 13:16:08 -05:00
Joseph Myers	b168057aaa	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
Vidya Ranganathan	f360f94a05	PowerPC: strncpy/stpncpy optimization for PPC64/POWER7 ... The optimization is achieved by following techniques: > data alignment [gain from aligned memory access on read/write] > POWER7 gains performance with loop unrolling/unwinding [gain by reduction of branch penalty]. > zero padding done by calling optimized memset	2014-05-06 09:54:25 -05:00