Hi Yeung,
have a look at
this
#
# Server parameters
#
ns_section "ns/server/${servername}"
ns_param directoryfile $directoryfile ;# List of files to use (index.html)
ns_param pageroot $pageroot ;# Directory under which all pages live
# Tuning options
ns_param connsperthread 0 ;# Normally there's one conn per thread
ns_param flushcontent false ;# Flush all data before returning
ns_param maxconnections 100 ;# Max connections to put on queue
ns_param maxdropped 0 ;# Shut down if dropping too many conns
ns_param maxthreads 20 ;# Tune this to scale your server
ns_param minthreads 0 ;# Tune this to scale your server
ns_param threadtimeout 120 ;# Idle threads die at this rate
# Limits
ns_param maxheaders 16384 ;# Max no. of headers from client
ns_param maxline 8192 ;# Max line length from client
ns_param maxpost 65536 ;# Max bytes on a POST
ns_param sendfdthreshold 2048 ;# Min size of file descriptor to send
