wayd(what are you doing) is a apache module, tag which apache process is servicing which request, useful for debug and maintain.
apxs -i -n wayd_module -c mod_wayd.c
WaydStarttime default Off, show starttime
WaydUri default On, show uri
WaydUriSizeLimit default 64, uri size limit
WaydHost default Off, show host
WaydArgs default Off, show querystring
WaydArgsSizeLimit default 64, querystring size limit
WaydHeaders header1, header2, show header1 and header2
root 21249 1 0 17:26 ? 00:00:00 /usr/local/apache2/bin/httpd -k start
nobody 21473 21249 0 17:30 ? 00:00:00 httpd:17:31:12 127.0.0.1:8060/supper.php?sleep=100 headera headerb
nobody 21485 21249 0 17:31 ? 00:00:00 httpd: