I want add another three backend VM

Hi friends,
this is my current haproxy config
I want add three gh servers to this config.
what is best way with best performance for mu case use

#---------------------------------------------------------------------
# Example configuration for a possible web application.  See the
# full configuration options online.
#
#   http://haproxy.1wt.eu/download/1.4/doc/configuration.txt
#
#---------------------------------------------------------------------

#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
    # to have these messages end up in /var/log/haproxy.log you will
    # need to:
    #
    # 1) configure syslog to accept network log events.  This is done
    #    by adding the '-r' option to the SYSLOGD_OPTIONS in
    #    /etc/sysconfig/syslog
    #
    # 2) configure local2 events to go to the /var/log/haproxy.log
    #   file. A line like the following can be added to
    #   /etc/sysconfig/syslog
    #
    #    local2.*                       /var/log/haproxy.log
    #
    log         127.0.0.1:514 local0 info
    chroot      /var/lib/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     4000
    user        haproxy
    group       haproxy
    daemon

    # turn on stats unix socket
    stats socket /var/lib/haproxy/stats

#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
    mode                    http
    log                     global
    option                  httplog
    option                  dontlognull
    option http-server-close
    option forwardfor       except 127.0.0.0/8
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           5m
    timeout connect         10s
    timeout client          5m
    timeout server          5m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 3000

#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
frontend  GH
    bind *:8080 ssl force-tlsv12 crt /home/log/ba.ha.pem
    acl url_static       path_beg       -i /static /images /javascript /stylesheets
    acl url_static       path_end       -i .jpg .gif .png .css .js

    use_backend static          if url_static
    default_backend             gh


frontend  HG
    bind *:8181 ssl force-tlsv12 crt /home/log/ba.ha.pem
    acl url_static	path_beg	-i /static /images /javascript /stylesheets
    acl url_statuc 	path_end	-i .jpg .gif .png .css .js


    use_backend static		if url_static
    default_backend		hg



#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
backend static
    balance     roundrobin
    server      static 127.0.0.1:4331 check

#---------------------------------------------------------------------
# round robin balancing between the various backends
#---------------------------------------------------------------------
backend gh
    balance	roundrobin
    server app1 ba.gh:80  ssl verify none

backend hg
    balance    roundrobin
    server app2 ba.hg:80 ssl verify none

you could add the servers in backend

backend gh
    balance	roundrobin
    server app1 ba.gh:80  ssl verify none
    server app2 ca.gh:80  ssl verify none
    server app2 da.gh:80  ssl verify none

youl could also set weight for the servers if they have different CPU/RAM specs.

what you mean with best performance for mu case?

Thank you,
I mean if we have more requests, haproxy can handle it.

define “more requests”. haproxy is very capable and can handle many requests by low resources and load on the host system.