messing about with internal wiring to improve ping and reduce jitter

craigj2k12 · 21-02-2011, 23:53

Hi all

Just interested in people with low ping and low jitter connections. How is your internal, and for that matter your external wiring. For me the wiring that was left for me to route in the cupboard under the stairs was left in a coil, along with the phone cabling in a coil, on top of that coil. To cut a long story short, with the wiring like this I still got 50megon speedtests but got pingtests of around 50 and 60ms with jitter of 30ms. Since I have routed the cabling and removed the coils the ping tests are around 25ms with 10ms jitter. I'm wondering if people who post pingtests of sub 20ms ping and 2ms or less jitter have short internal coax wires, or if they have shorter external wiring. This is just a suspicion and I have no proof, but in my case the coils of wiring seemed to cause interference. Also the power leads for my phone and superhub run through the wall alongside the coax cable. I'm going to move these tomorrow to see if they make any difference because at the moment online gaming pings are up and down like a hooker on crack.
Any input on lowering pings would be useful for me, I'm quite a keen gamer and id especially like to lose this jitter
Thanks

Harryn9000 · 22-02-2011, 02:04

have u turned ip flood and firewall off. if not there your problem i getting around 35 ping also if ur using Virgin Security that put the ping up aswell hope this helps

Chrysalis · 22-02-2011, 08:23

in my opinion the biggest factor for jitter is VM side, in terms of congestion, specifically upstream congestion which of course means you powerless. The flood protection causes packet loss but doesnt seem to have a significant affect on jitter.

pabscars · 22-02-2011, 08:39

Jitter is something you have to live with whilst using VM broadband, some peeps are lucky enough to get really low jitter but as a rule it averages about 12ms (correct me if I'm wrong Chrys)

Mine can be as high as 30 to 40ms peak time and as low as 2ms in the early morning. Unfortunately VM BB isn't always conducive with good gaming despite being advertised as such.

Good luck with your quest and let us know how you get on

Chrysalis · 22-02-2011, 09:13

yeah I would say its something to expect on VM broadband, the average reported by samknows is 4-8ms.

On my VM line since a 2nd upstream channel got enabled (doubled previous upstream capacity) my jitter is about 2-5ms at dusk and mornings but still goes up to 10-20ms at peak. I do see occasional sub 2ms jitter VM lines but they seem extremely rare. Incidently the last one I seen was from a VM staff member on here which raises questions how his own service is on a rare upstream so low utilised :p

However for what its worth 5ms or so of jitter is nothing of real concern, using ssh on my line is generally fine now, when at 20ms or so the jitter is noticeble if I look for it but not enough to interrupt what I am doing. For gaming I expect 5ms is also fine, the real issues is when get silly random high ping spikes.

Just checked ssh right now and it feels barely different from my adsl line at 1ms. But does get occasional bits of small lag if I hold a key down and watch it. However is ok, I am not fussy for the sake of it, when I was kicking up a fuss I had silly very high jitter.

pabscars · 22-02-2011, 09:30

Chrys, so does that mean your a happy chappy for now then

, glad to see your service has improved,,,,,,,,,,,,,, just a tad.

I could of sworn average VM jitter was higher than 4 to 8ms but hay ho.

craigj2k12 · 22-02-2011, 10:03

Pabs I was thinking of your sig when I was messing with the wires lol

pabscars · 22-02-2011, 10:39

Quote:

Originally Posted by craigj2k11

Pabs I was thinking of your sig when I was messing with the wires lol

Ha Ha

I must confess I'm a sod for messing with stuff, just to see if minor improvements can be gained.

I had a play with the wifes Dyson vacuum cleaner a few months back, but apparently having enough power to suck the enamel of the dogs teeth isn't a requirement at any time

according to her at least.

how does she put up with me.

craigj2k12 · 22-02-2011, 10:48

Well I mess about with everything, usually ending up breaking it but when I re routed that cable there was a major difference. I might dig up the street and lay a new cable to the termination point haha

pabscars · 22-02-2011, 10:53

Quote:

Originally Posted by craigj2k11

Well I mess about with everything, usually ending up breaking it but when I re routed that cable there was a major difference. I might dig up the street and lay a new cable to the termination point haha

It would be interesting to know if it's had any real effect on your power levels and SNR.

Chrysalis · 22-02-2011, 10:57

yeah my service has completely transformed.

start of jan I was well on the way to quitting VM by end of that month, changed my mind towards the end of jan as was given some promises by the CEO office, 22 jan seemed to hit the peak of its worst, the jitter and latency was unreal. Since then had a slow steady improvement which was topped of by that upstream capacity upgrade. Also When I switched to the 30mbit service the download performance has been very stable, whilst on 20mbit it was all over the place.

joveonmars · 22-02-2011, 11:24

I found that TCP Optimizer has a feature under advanced settings, gaming tweak called TCPNoDelay, & when Nagle's algorithm is disabled that I think helped reduce jitter;

Disabling "nagling" allows for very small packets to be transferred immediately without delay. Note that disabling Nagle's algorithm is only recommended for some games, and it may have negative impact on file transfers/throughput. The dafault state (Nagling enabled) improves performance by allowing several small packets to be combined together into a single, larger packet for more efficient transmission. While this improves overall performance and reduces TCP/IP overhead, it may briefly delay transmission of smaller packets. Keep in mind that disabling Nagle's algorithm may have some negative effect on file transfers, and can only help reduce delay in some games. source from: http://www.speedguide.net/articles/w...08-tweaks-2574

I have a 5m cat 5e cable from my pc to the superhub in a different room which is only just long enough, & 1Gbps link. Click the pingtest link below to see 0ms jitter which was taken at 7:30pm when traffic is busy.

craigj2k12 · 22-02-2011, 13:03

Quote:

Originally Posted by pabscars

It would be interesting to know if it's had any real effect on your power levels and SNR.

the power levels went up, but not by much, about 0.7 - 1.0 ish which is good considering i didnt really do anything.

Quote:

I found that TCP Optimizer has a feature under advanced settings, gaming tweak called TCPNoDelay, & when Nagle's algorithm is disabled that I think helped reduce jitter;

Disabling "nagling" allows for very small packets to be transferred immediately without delay. Note that disabling Nagle's algorithm is only recommended for some games, and it may have negative impact on file transfers/throughput. The dafault state (Nagling enabled) improves performance by allowing several small packets to be combined together into a single, larger packet for more efficient transmission. While this improves overall performance and reduces TCP/IP overhead, it may briefly delay transmission of smaller packets. Keep in mind that disabling Nagle's algorithm may have some negative effect on file transfers, and can only help reduce delay in some games. source from: http://www.speedguide.net/articles/w...08-tweaks-2574

I have a 5m cat 5e cable from my pc to the superhub in a different room which is only just long enough, & 1Gbps link. Click the pingtest link below to see 0ms jitter which was taken at 7:30pm when traffic is busy.

http://www.pingtest.net/result/35207690.png