## with mod_http2.so ENABLED with default settings
 
# ps -o thcount,pid,command axf|grep httpd|grep -v grep
    1 13670 /usr/local/apache2/bin/httpd -k start
  252 13671  \_ /usr/local/apache2/bin/httpd -k start
  252 13672  \_ /usr/local/apache2/bin/httpd -k start  

# /usr/local/apache2/bin/apachectl graceful

# ps -o thcount,pid,command axf|grep httpd|grep -v grep
    1 13670 /usr/local/apache2/bin/httpd -k start
  252 14183  \_ /usr/local/apache2/bin/httpd -k start
  252 14184  \_ /usr/local/apache2/bin/httpd -k start
  
$ curl -k --http2 --limit-rate 32k -v https://localhost/1G.bin >/dev/null
  # if a request for --http1.1 is made, the behavior is the same

# ps -o thcount,pid,command axf|grep httpd|grep -v grep
    1 13670 /usr/local/apache2/bin/httpd -k start
  252 14183  \_ /usr/local/apache2/bin/httpd -k start
  252 14184  \_ /usr/local/apache2/bin/httpd -k start
  252 14694  \_ /usr/local/apache2/bin/httpd -k start
  
# /usr/local/apache2/bin/apachectl graceful

# ps -o thcount,pid,command axf|grep httpd|grep -v grep
    1 13670 /usr/local/apache2/bin/httpd -k start
  153 14184  \_ /usr/local/apache2/bin/httpd -k start
  252 14954  \_ /usr/local/apache2/bin/httpd -k start
  252 14955  \_ /usr/local/apache2/bin/httpd -k start
  
$ terminate "curl"

# ps -o thcount,pid,command axf|grep httpd|grep -v grep
    1 13670 /usr/local/apache2/bin/httpd -k start
  252 14954  \_ /usr/local/apache2/bin/httpd -k start
  252 14955  \_ /usr/local/apache2/bin/httpd -k start