OneConnect, no HTTP profile, still per HTTP request LB?

With OC first TCP connection (and in turn first HTTP request) will be LB to first server, second HTTP request in the same TCP connection to second server and so on

i do not think so. i think without http profile, bigip will not know when to detach server-side connection.

 with http profile

root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        oneconnect { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 29
}
root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm pool foo
ltm pool foo {
    members {
        200.200.200.101:80 {
            address 200.200.200.101
        }
        200.200.200.111:80 {
            address 200.200.200.111
        }
    }
}
root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    when HTTP_REQUEST {
  set host [HTTP::host]
  set uri [HTTP::uri]
}
when HTTP_RESPONSE {
  log local0. "client=[IP::client_addr]:[TCP::client_port] \
    host=$host uri=$uri \
    status=[HTTP::status] \
    snat=[IP::local_addr]:[TCP::local_port] \
    server=[IP::server_addr]:[TCP::server_port]"
}
}

 /var/log/ltm

[root@ve11c:Active:In Sync] config  tail -f /var/log/ltm
Apr 21 17:29:13 ve11c info tmm1[5649]: Rule /Common/qux : client=172.28.24.8:33073  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33073  server=200.200.200.101:80
Apr 21 17:29:13 ve11c info tmm1[5649]: Rule /Common/qux : client=172.28.24.8:33073  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33073  server=200.200.200.111:80
Apr 21 17:29:13 ve11c info tmm1[5649]: Rule /Common/qux : client=172.28.24.8:33073  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33073  server=200.200.200.101:80
Apr 21 17:29:13 ve11c info tmm1[5649]: Rule /Common/qux : client=172.28.24.8:33073  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33073  server=200.200.200.111:80
Apr 21 17:29:13 ve11c info tmm1[5649]: Rule /Common/qux : client=172.28.24.8:33073  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33073  server=200.200.200.101:80
Apr 21 17:29:13 ve11c info tmm1[5649]: Rule /Common/qux : client=172.28.24.8:33073  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33073  server=200.200.200.111:80

 without http profile

root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 29
}

 /var/log/ltm

[root@ve11c:Active:In Sync] config  tail -f /var/log/ltm
Apr 21 17:30:02 ve11c info tmm[5649]: Rule /Common/qux : client=172.28.24.8:33086  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33086  server=200.200.200.101:80
Apr 21 17:30:02 ve11c info tmm[5649]: Rule /Common/qux : client=172.28.24.8:33086  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33086  server=200.200.200.101:80
Apr 21 17:30:02 ve11c info tmm[5649]: Rule /Common/qux : client=172.28.24.8:33086  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33086  server=200.200.200.101:80
Apr 21 17:30:02 ve11c info tmm[5649]: Rule /Common/qux : client=172.28.24.8:33086  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33086  server=200.200.200.101:80
Apr 21 17:30:02 ve11c info tmm[5649]: Rule /Common/qux : client=172.28.24.8:33086  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33086  server=200.200.200.101:80
Apr 21 17:30:02 ve11c info tmm[5649]: Rule /Common/qux : client=172.28.24.8:33086  host=172.28.24.10 uri=/  status=200  snat=200.200.200.14:33086  server=200.200.200.101:80