TOPOLOGIA DE REDE
Sempre que eu tento transferir arquivos dentro da rede local com scp não consigo atingir velocidades acima de 2Mb / s, em ambas as direções (servidor --- > laptop ou laptop --- > servidor). O mesmo com o FTP.
Eu notei que a transferência de dados começa em 2,5 [Mb / s] e depois cai rapidamente para 500 [Kb / s] após alguns segundos.
A transferência do servidor para o laptop é um pouco mais rápida (3Mb / s em vez de 2Mb / s).
Eu esperaria que a velocidade fosse pelo menos 25Mb / s, já que é uma transferência de dados local pura.
FYI, alguns resultados significativos:
NO SERVIDOR
: ~ $ ifconfig
eth0 Link encap:Ethernet HWaddr 00:13:d3:cd:8a:7b
inet adr:192.168.1.246 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::213:d3ff:fecd:8a7b/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1492 Metric:1
Packets reçus:34893 erreurs:0 :2 overruns:0 frame:0
TX packets:45145 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:19810274 (19.8 MB) Octets transmis:57877746 (57.8 MB)
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:65536 Metric:1
Packets reçus:36 erreurs:0 :0 overruns:0 frame:0
TX packets:36 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:2160 (2.1 KB) Octets transmis:2160 (2.1 KB)
: ~ $ sudo ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: d
Current message level: 0x00000000 (0)
Link detected: yes
NO LAPTOP
$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:21:cc:d3:8d:67
UP BROADCAST MULTICAST MTU:1500 Metric:1
Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
Interruption:20 Mémoire:f2500000-f2520000
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:16436 Metric:1
Packets reçus:1562 erreurs:0 :0 overruns:0 frame:0
TX packets:1562 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:478231 (478.2 KB) Octets transmis:478231 (478.2 KB)
wlan0 Link encap:Ethernet HWaddr 60:67:20:bd:5e:4c
inet adr:192.168.1.12 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::6267:20ff:febd:5e4c/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1492 Metric:1
Packets reçus:161831 erreurs:0 :0 overruns:0 frame:0
TX packets:101552 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:195684887 (195.6 MB) Octets transmis:29360206 (29.3 MB)
sudo iwconfig wlan0
wlan0 IEEE 802.11abgn
Mode:Managed Frequency:2.437 GHz Access Point: 00:26:4D:26:A1:2D
Bit Rate=54 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=52/70 Signal level=-58 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:3791 Missed beacon:0
Você sabe qual pode ser a causa dessa lentidão maluca?
Tente isso no terminal
sudo iwconfig wlan0 rate 54M
Se você está tentando transferir do laptop na rede sem fio
por favor, deixe-me saber se isso ajuda