This article discusses hardware performance counter measurements obtained for a character search benchmark running on Intel x86 and SPARC hardware. Those results help to explain the big runtime differences between a SPARC T5 system and Intel x86 ones (SPARC being much slower), as well as differences between the different implementations …
The article std::find() and memchr() Optimizations contains benchmark results for an Intel Core i5, an i7 and an older AMD system. This followup also adds results for a relatively recent SPARC system and an older PPC one.
First released in 2013, the SPARC T5 is a relative …
Assume you need to parse a record based format with flexible
width and one-byte delimiters. When using C++, the std::find() STL
algorithm is the obvious choice for efficiently locating the
delimiters. The idiomatic C solution is to use memchr().