Simply record the time from entering `main` to start listening sockets.
{
    try
    {
        std::string value_string = std::to_string(value);
        DB::WriteBufferFromFile buf("/proc/self/oom_score_adj");
        buf.write(value_string.c_str(), value_string.size());
        buf.next();
        buf.close();
    }
    catch (const Poco::Exception & e)
    {
        LOG_WARNING(log, "Failed to adjust OOM score: '{}'.", e.displayText());
        return;
    }
    LOG_INFO(log, "Set OOM score adjustment to {}", value);
}
}
#endif
void Server::uninitialize()