by Giovanni Dicanio
This simple C++ benchmark measures sorting times of string vectors.
Compiler: VS2015 with Update 3
CPU: Intel i7-6700 @ 3.40GHz
RAM: 32GB
OS: Windows 10
##Benchmark Results##
Note: Execution times are expressed in milliseconds.
| Configuration | ATL | STL | PTR |
|---|---|---|---|
| 32-bit | 3110 | 3278 | 2332 |
| 64-bit | 3272 | 3204 | 2472 |
| 32-bit SSO | 1218 | 700 | 495 |
| 64-bit SSO | 1235 | 609 | 512 |
##Conclusions##
- In 32-bit builds, ATL's CStringW performs slightly better.
- In 64-bit builds, STL's wstring performs slightly better.
- With small strings, STL's wstring performs much better than ATL, thanks to the Small String Optimization (SSO).
- Raw wchar_t pointers show best performance.