242 - increased latency made the game unplayable for me
Kamamura
Join Date: 2013-03-06 Member: 183736Members, Reinforced - Gold
Join Date: 2013-03-06 Member: 183736Members, Reinforced - Gold
I have 17 - 18 ms latency to my ISP, on a VDSL line 25Mb/s down, 3Mb/s or so up. I have checked the net_stat, the stream is 4kb/s up and 12kb/s or so down max, so that cannot be the problem. I can find servers with 20-30 ms latencies geografically closest to me.
Here is how the situation evolved:
238, 239 = 30-40ms latency on the closest servers
240, 241 = 40-50 latency on the same servers
242 = 60-80 ms latency on the same servers, prediction failing, no longer playable.
I can provide logs if it helps, but I did not find no error messages nor something suspicious in them.
Here is how the situation evolved:
238, 239 = 30-40ms latency on the closest servers
240, 241 = 40-50 latency on the same servers
242 = 60-80 ms latency on the same servers, prediction failing, no longer playable.
I can provide logs if it helps, but I did not find no error messages nor something suspicious in them.
Comments
like just before i posted this i played a game with a score of 237 with a ping of 174
I have not an extended knowledge in the network protocols but there is a latency fix well known on the internet, maybe you can try it :
LeatrixLatencyFix
You can traceroute the servers to find the origin of the high latency too.
Ad routing - I very much doubt that there is a routing problem between me and every European server I try, especially when all other games perform just fine. Traceroute won't prove much, since it's based on ICMP messages and the game itself uses UDP.
I have several possible explanations:
1) Non-standard UDP packet size, gets fragmented on the way, fragments are lost, resulting in lost packets
2) Poor client scheduling - non-breakable tasks like rendering, CPU calculation take too much time per cycle, network packet generation is delayed/skipped
3) VDSL router poor performance when sending/receiving at the same time, and/or handles poorly burst traffic, however this seem unlikely due to low bandwidth consumption relative to bandwidth available
4) Hardware/compatibility problem with my NIC, I have Intel 10/100/1000 GT that are supposed to be reliable, but who knows.
What can I do to diagnose the problem more? Tried p_log 3, the resulting log.txt contains absolutely no useful data. Files "0", "1" etc. are logs, or configuration files of some type?
Other thing - if I turn net_stats to 1, the stats show latency that dramatically differs from what the player browser shows. For example, player browser show latency 62ms, netstats show crazy numbers like 220ms. How is that possible?