[Q] High PING Latency From PC To MotoG

[RareHare]

I just bought two Moto G's to use in my research in computer networking.

As a test, I pinged one on them from a Windows 7 PC over WiFI, and got really high latency, consistently between 10-500 milliseconds. I pinged the other one, and got nearly identical results. I then fired up an old laptop running Windows XP, bunny, in another part of my lab, and for bunny, the ping was consistently under 1 millisecond. I tried pinging two other pristine Windows 7 laptops, in different parts of my lab, and again, the pings were always under 3 milliseconds. I tried moving the MotoG's around the lab, with same results, no matter their location.

Wi-Fi router is stock Linksys WRT54G.

Both MotoG's are virgin, totally unloaded, as they had been turned on less than 3 minutes each.

Frankly, the reason I did the PING in the first place is because I was curious to see if there might be an issue with latency through WiFi path on Android phones.

Does anyone else experience latency > 10 milliseconds? Is this considered normal? Do all Android phones exhibit such high latency?


C:\>ping 192.168.1.101

Pinging 192.168.1.101 with 32 bytes of data:
Reply from 192.168.1.101: bytes=32 time=417ms TTL=64
Reply from 192.168.1.101: bytes=32 time=30ms TTL=64
Reply from 192.168.1.101: bytes=32 time=256ms TTL=64
Reply from 192.168.1.101: bytes=32 time=180ms TTL=64

Ping statistics for 192.168.1.101:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 30ms, Maximum = 417ms, Average = 220ms

C:\>ping bunny

Pinging bunny [192.168.1.105] with 32 bytes of data:
Reply from 192.168.1.105: bytes=32 time=2ms TTL=128
Reply from 192.168.1.105: bytes=32 time=1ms TTL=128
Reply from 192.168.1.105: bytes=32 time=2ms TTL=128
Reply from 192.168.1.105: bytes=32 time=1ms TTL=128

Ping statistics for 192.168.1.105:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 2ms, Average = 1ms

C:\>

 

[neu - smurph]

I just bought two Moto G's to use in my research in computer networking.

As a test, I pinged one on them from a Windows 7 PC over WiFI, and got really high latency, consistently between 10-500 milliseconds. I pinged the other one, and got nearly identical results. I then fired up an old laptop running Windows XP, bunny, in another part of my lab, and for bunny, the ping was consistently under 1 millisecond. I tried pinging two other pristine Windows 7 laptops, in different parts of my lab, and again, the pings were always under 3 milliseconds. I tried moving the MotoG's around the lab, with same results, no matter their location.

Wi-Fi router is stock Linksys WRT54G.

Both MotoG's are virgin, totally unloaded, as they had been turned on less than 3 minutes each.

Frankly, the reason I did the PING in the first place is because I was curious to see if there might be an issue with latency through WiFi path on Android phones.

Does anyone else experience latency > 10 milliseconds? Is this considered normal? Do all Android phones exhibit such high latency?


C:\>ping 192.168.1.101

Pinging 192.168.1.101 with 32 bytes of data:
Reply from 192.168.1.101: bytes=32 time=417ms TTL=64
Reply from 192.168.1.101: bytes=32 time=30ms TTL=64
Reply from 192.168.1.101: bytes=32 time=256ms TTL=64
Reply from 192.168.1.101: bytes=32 time=180ms TTL=64

Ping statistics for 192.168.1.101:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 30ms, Maximum = 417ms, Average = 220ms

C:\>ping bunny

Pinging bunny [192.168.1.105] with 32 bytes of data:
Reply from 192.168.1.105: bytes=32 time=2ms TTL=128
Reply from 192.168.1.105: bytes=32 time=1ms TTL=128
Reply from 192.168.1.105: bytes=32 time=2ms TTL=128
Reply from 192.168.1.105: bytes=32 time=1ms TTL=128

Ping statistics for 192.168.1.105:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 2ms, Average = 1ms

C:\>

Interesting - I've just tested my Moto G vs a Sumvision tablet (JB 4.1.1) and the cheapo chinese Tablet wins outright.

Moto G (stock unrooted)

Screen Off
Min - 142ms, Max 394ms, Average - 271ms

Screen On
Min - 29ms, Max 117ms, Average - 63ms

I repeated this a few times and the difference between screen on and off is consistent as is a large variance in the response time for each of the 4 pings. No difference by switching wifi optimisation on/off.

Sumvision Tablet (stock, rooted)

Screen Off
Doesn't wake to pings.

Screen On
Min - 1ms, Max 1ms, Average - 1ms

 

[small-mallet]

K, I really don't get why you would ping your phone rather than other way around. Ping your computer or router from phone (i use fing), i get consistently 1-3ms ping. I guess the phone just takes its own time responding or maybe responds back with a reply every >50ms intervals, cause sometimes the ping goes all the way below 5ms and jumps back above 50ms. Some kind of battery saving measure maybe.

I pinged my phone, and i got around 50ms ping, and I pinged my kindle fire hd and at start it was around 70ms and later it dropped to 1ms. So, no, it isn't and android OS thing.

 

[RareHare]

K, I really don't get why you would ping your phone rather than other way around.

Well, I need no-nonsense minimum delay in both directions.

Something told me that the delay might be excessive. Let's just say that, if it turns out that there are numerous Android devices that share this problem, it would not be unreasonable to consider the possibility that the problem was artificially-induced.

Ping your computer or router from phone (i use fing), i get consistently 1-3ms ping. I guess the phone just takes its own time responding or maybe responds back with a reply every >50ms intervals, cause sometimes the ping goes all the way below 5ms and jumps back above 50ms. Some kind of battery saving measure maybe.

I doubt that it is a battery-saving measure. That would not make sense. Delaying a PING, especially when the device is already primed for communication, is not going to reduce power any appreciable amount.

I pinged my phone, and i got around 50ms ping, and I pinged my kindle fire hd and at start it was around 70ms and later it dropped to 1ms. So, no, it isn't and android OS thing.

I would be interested in seeing the delay (in both directions), for a device that is primed (in its steady-state as far as power goes).

I am going to check around on some other (inexpensive) Android devices to see what their PING's are like.

 

[Gisain]

G7 and Fing

I have a G7 Optimo and it definitely has a latency issue. I get great pings to and from my desktop on the LAN, but only with the Fing app. Any other way I check it and a ping involving the G7, be it up or down, runs in the realm of 400ms. Just for grins I disabled my wifi and pinged my external IP from the G7, ping was horrible. Pinged google.com, same effect. My son's Razer gets good ping all the way around, except when he pings my G7.

 

[kouseralamin]

Try testing while charging your phone. Android phones run using battery; they need to save battery, so ping latency gets higher while not plugged. You will get better results, if you do that test while plugged. You may also flash a custom rom with a custom kernal. That can significantly reduce ping latency.