From: Trey Jackson (tjackson_at_[hidden])
Date: 2003-10-23 15:03:57
Anders Hybertz wrote:
>I'm sitting and reading an article in the latest Dr. Dobb's Journal -
>October 2003 issue.
>There is quite an interesting article on "C++ String Performance" -
>the guy has made some kind of string implementation that performs
>between 2 and 25.000 times better than the std:string or
>std::basic_string<T>. Especially the performance gains in
>multithreaded application is outstanding.
I'm still having trouble with the fact that Dr. Dobbs published such a
hack. Even I was able to figure out a bunch of the shortcomings of
the implementation (wasted memory, incompatible string types, ...)
He incorrectly "determines" the cause of the slowdown.
FWIW, simply setting the environment variable
GLIBCPP_FORCE_NEW (GLIBCXX_FORCE_NEW for gcc 3.4+)
which disables memory caching gets the std::string example to within
10% of his CGenString example (teststring4).
(tested using gcc 3.2.3)
-- Trey Jackson tjackson_at_[hidden] "Why, the fax machine is nothing but a waffle iron with a phone attached!" -- Grandpa Simpson
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