Windows custom printing very slow

[nminkov]

Manually iterating frames and accessing name, source file, source line is extremely slow. However printing all the frames with default function out stream is not. By slow, I mean several seconds for each frame function access.

After cheching the code I can see that boost::stacktrace::detail::debugging_symbols object is created for every and each call to name(), source_name(), source_line() which simply unusable in real world app.

std::string frame::name() const {
    boost::stacktrace::detail::debugging_symbols idebug;
    return idebug.get_name_impl(addr_);
}

std::string frame::source_file() const {
    boost::stacktrace::detail::debugging_symbols idebug;
    return idebug.get_source_file_line_impl(addr_).first;
}

std::size_t frame::source_line() const {
    boost::stacktrace::detail::debugging_symbols idebug;
    return idebug.get_line_impl(addr_);
}

std::string to_string(const frame& f) {
    std::string res;

    boost::stacktrace::detail::debugging_symbols idebug;
    idebug.to_string_impl(f.address(), res);
    return res;
}

I would highly suggest to cache the frame data on frame creation, with single boost::stacktrace::detail::debugging_symbols object.

[apolukhin]

Try using BOOST_STACKTRACE_USE_WINDBG_CACHED http://boostorg.github.io/stacktrace/stacktrace/configuration_and_build.html

Please report back: is it helped or not