replication task only hit the 100mbits

[John Doe]

hi, I have set up a second FN system, to put a backup on it.
checked on both systems, system 1 (to be backed up) is sending with 100mbits, system 2 (receiver) is receiving with 100mbits.

checked on the receiver:

Code:

[root@freenas ~]# ifconfig                                                    
re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500      
        options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGI
C,LINKSTATE>                                                                  
        ether d0:50:99:34:93:e5                                                
        hwaddr d0:50:99:34:93:e5                                              
        inet 192.168.0.219 netmask 0xffffff00 broadcast 192.168.0.255          
        nd6 options=9<PERFORMNUD,IFDISABLED>                                  
        media: Ethernet autoselect (1000baseT <full-duplex>)                  
        status: active                                                        
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384              
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>                  
        inet6 ::1 prefixlen 128                                                
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2                            
        inet 127.0.0.1 netmask 0xff000000                                      
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>                              
        groups: lo            

so it seems, that the receiver is having gigabit network, but why is it not hitting the gigabit?

the to be backed up system can write to my windows machine with about 110MB/s so means it is able to do gigabit.
Settings on the to be backed up system for replication task:
replication stream compression LZ4 (fastest)
encryption cipher: fast
Remote hostkey is having the key from the receiver system

screenshots below from the receiver system

 

[dlavigne]

You won't get good performance from a Realtek NIC. See the hardware recommendations in the forums resources.