https://www.hiawatha-webserver.org/about
Performance testing while under attack
https://vpsboard.com/topic/4129-hiawatha-installation-script-hiawatha-php-fpm-mariadb/
Hiawatha is an open source webserver with a focus on security. I started Hiawatha in January 2002. Before that time, I had used several webservers, but I didn't like them. They had unlogical, almost cryptic configuration syntax and none of them gave me a good feeling about their security and robustness. So, I decided it was time to write my own webserver. I never thought that my webserver would become what it is today, but I enjoyed working on it and liked to have my own open source project. In the years that followed, Hiawatha became a fully functional webserver.
Performance testing while under attack
https://vpsboard.com/topic/4129-hiawatha-installation-script-hiawatha-php-fpm-mariadb/