dancol added inline comments.
================ Comment at: source/Core/Log.cpp:78 + char *text; + vasprintf(&text, format, args); + message << text; ---------------- I usually implement printf-into-std::string by using `vsnprintf` to figure out how many characters we generate, using `std::string::resize` to create a buffer of that many characters (unfortunately, zero-filling them), then `vsnprintf` directly into that buffer. This way, you only need one allocation. The currant approach involves at least three allocations: first, the string generated by `vasprintf`. Second, the internal `stringstream` buffer. Third, the copy of the buffer that `std::stringstream::str` generates. It's more expensive that it needs to be. https://reviews.llvm.org/D27459 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits