amoroso Yes, h1d1 was developed by me. first, It uses the efficient epoll. second each routing thread has several caches: one for URLs of non-existent files, used to directly return a 404 page instead of querying the directory the next time; another cache for small files, storing message headers and small files together in memory. third, message reading and writing uses C language interfaces of system functions; for example, sending messages via sockets uses the send function. My email is r6v4@pm.me and linshunzhi@vip.163.com. r6v4/h1d1 will be a source of pride for common-lisp. Currently, the kvdb part only runs successfully on Ubuntu and Debian; CentOS and Fedora require bzip2-devel to be installed,and need to link the lib. I will release a new version to fix this issue in a few hours, 2025-12-28.