Yep. He's still a mensch. Yahoo did some incredible stuff on Apache & FreeBSD back in the day. I remember a hack that added hardcoded HTTP headers to the image

Yep. He's still a mensch. Yahoo did some incredible stuff on Apache & FreeBSD back in the day. I remember a hack that added hardcoded HTTP headers to the image files on disk, to squeeze that extra nilth percent out of the server.