J
johnzhuca
Guest
We noticed that the performance of string functions for MBCS like _tcscat (_mbscat), _tstof (atof), _tcsstr (_mbscpy) has been hit significantly if we set the locale LC_CTYPE to system default, and use the runtime library with Mutli-thread DLL (/MD). With /MD, it will be 50% slower; while if use runtime library with Multlthread (/MT), with same code it only drops 15-20%. We understand when a locale is set, it could get slower for string functions, but why /MD cause significant hit? Isn't the implementation same in either a lib or a dll for the runtime libraries?
Is there any thing to improve the performance? We are switching the projects from /MT to /MD and to support user's native languages, it is hard to accept such performance drop.
The demo code is on github if required.
Continue reading...
Is there any thing to improve the performance? We are switching the projects from /MT to /MD and to support user's native languages, it is hard to accept such performance drop.
The demo code is on github if required.
Continue reading...
