airvpn18259 2 Posted ... Ok so I'm on a 100Mbit broadband connection and I'm able to max out my connection (with and without VPN) on speedtest sites. However while torrenting, I notice that the the speed will peak for 2-3 seconds, then plummet for 2-3 seconds then again peak for 2-3 seconds then again plummet for 2-3 seconds. Here's a graph showing exactly what I mean: So the peak download speed (in green) is around 11MB/sec (~88Mbit) and trough is around 2MB/sec (16Mbit). Any ideas? Quote Share this post Link to post
LZ1 671 Posted ... Hello! Have you done portforwarding? Tried changing TAP drivers? Tried the Eddie client? Or tried the Experimental? You provide precious little information haha. Quote Hide LZ1's signature Hide all signatures Hi there, are you new to AirVPN? Many of your questions are already answered in this guide. You may also read the Eddie Android FAQ. Moderators do not speak on behalf of AirVPN. Only the Official Staff account does. Please also do not run Tor Exit Servers behind AirVPN, thank you. Did you make a guide or how-to for something? Then contact me to get it listed in my new user guide's Guides Section, so that the community can find it more easily. Share this post Link to post
bifter 0 Posted ... I'm getting the same issue...I have just installed Eddie 2.11.8 from the latest stable. I tried going back to stable but got lots of null errors (I guess the some config settings have been overwritten by Eddie?). macOS 10.12.1Eddie 2.11.8I am port forwarding. UPDATE:I have reverted to 2.10.3 and am still getting the same issue.UPDATE 2Ok, after reading other comments here I identified the cause to saving a torrent to a USB 2 stick Quote Share this post Link to post
go558a83nk 362 Posted ... Ok so I'm on a 100Mbit broadband connection and I'm able to max out my connection (with and without VPN) on speedtest sites. However while torrenting, I notice that the the speed will peak for 2-3 seconds, then plummet for 2-3 seconds then again peak for 2-3 seconds then again plummet for 2-3 seconds. Here's a graph showing exactly what I mean: So the peak download speed (in green) is around 11MB/sec (~88Mbit) and trough is around 2MB/sec (16Mbit). Any ideas? could it be a hard drive cache flushing problem or the like? Quote Share this post Link to post
rainmakerraw 94 Posted ... What torrent client are you using? I see you're on Windows, so I would highly recommend qBittorrent because it's fast, light, ad-free and secure (you can bind it to the TAP adapter). Just to make sure, have you disabled uTP and rate limiting in your torrent client? I had all kinds of hair-pulling annoying speed issues until I realised that one. Also make sure to set the snd and rcv buffers to 512K to rule that out, and connect to your router via ethernet to rule out wifi drops (this type of graph is quite common on poor wifi). Quote Share this post Link to post
airvpn18259 2 Posted ... What torrent client are you using? I see you're on Windows, so I would highly recommend qBittorrent because it's fast, light, ad-free and secure (you can bind it to the TAP adapter). Just to make sure, have you disabled uTP and rate limiting in your torrent client? I had all kinds of hair-pulling annoying speed issues until I realised that one. Also make sure to set the snd and rcv buffers to 512K to rule that out, and connect to your router via ethernet to rule out wifi drops (this type of graph is quite common on poor wifi). I'm on qBittorrent 3.3.7. No rate enabled anywhere in client or router or OS. I actually don't think it's the VPN that's causing the fluctuation. I have a 5 year old PC so either the HDD is slowing down or the RAM or CPU not performing up to the mark (?) I'm not quite sure. Is there a way to find out what exactly the problem is? Is it a hard drive cache flushing problem? Thanks Quote Share this post Link to post
zhang888 1066 Posted ... Shortest and most productive test would be to download a well seeded Linux torrent without VPN and compare. Quote Hide zhang888's signature Hide all signatures Occasional moderator, sometimes BOFH. Opinions are my own, except when my wife disagrees. Share this post Link to post
airvpn18259 2 Posted ... I performed test with and without airvpn: This is WITH airvpn enabled: http://i.imgur.com/YiZlieU.jpg This is WITHOUT airvpn: http://i.imgur.com/gWjmpGa.jpg So it's definitely not the VPN, but I'm not sure what it is. Why do speeds hit max 14MB/sec (The 110Mbps I get max from my ISP) then drop to 10MB/sec (80Mbps) every 3 seconds? Would it be a CPU issue or a drive issue or a RAM issue? Quote Share this post Link to post
zhang888 1066 Posted ... One of the possible reasons is that your network I/O exceeds the disk I/O, so you have bufferring until the previous write operations are completed. Quote Hide zhang888's signature Hide all signatures Occasional moderator, sometimes BOFH. Opinions are my own, except when my wife disagrees. Share this post Link to post
airvpn18259 2 Posted ... Ok in that case what's the fix? Sorry a newbie here. Do I need a better CPU? Or HDD? Quote Share this post Link to post
zhang888 1066 Posted ... SSD. Quote Hide zhang888's signature Hide all signatures Occasional moderator, sometimes BOFH. Opinions are my own, except when my wife disagrees. Share this post Link to post
Staff 9948 Posted ... Would it be a CPU issue or a drive issue or a RAM issue? Hello, 1) enlarge considerably torrent client RAM buffer, so that it writes to the HDD less frequently2) if you have an asymmetric line make sure that the upload bw of the torrent client does not choke the line (set stricter limits from the torrent client options)3) if you have some file system that has no effective algorithm to avoid fragmentation, defragment the HDD4) consider zhang888 suggestion. If you have USB 3, even a good USB key might be enough. Make sure to take one that can support at least 28 MB/s in writing and set the external storage in the torrent client options. Kind regards Quote Share this post Link to post
rainmakerraw 94 Posted ... As I have said elsewhere, I have had a similar issue on my 200/20 cable line, with MacOS, Linux and Windows, on SSD and HDD. I have had a play with qBittorrent 3.3.7 and found that I have fixed my issue, so hopefully this helps you also. It's worth a try. Maximum number of connections per torrent: 100 (50 works too but isn't always as fast)Global rate limits - upload - 75% of your upload speedMake sure every other box on that page (including 'Enable uTP protocol') are not checked Go to the Advanced section and scroll down to libtorrent settings. Disk write cache size - 30 MiBEnable OS cache - Make sure you uncheck thisMaximum number of half open connections - 0 (zero) Now restart qBittorrent and try an Ubuntu 16.10 torrent download again. I tried settings ranging from large cache sizes (4000 MiB and down) and found that on a standard hdd a setting just above my line speed (30 MiB in my case) worked the best. If 30 doesn't work for you, try 20. I found that the OS cache option just made the torrent spool up slower and it 'crashed' the speed a few times while the disk caught up. This doesn't happen (for me) with OS cache disabled. As zhang888 says an SSD is much more reliable. When I switched my download path back to my SSD speeds were more stable and it didn't matter so much when the buffer wrote to disk, but for a platter HDD it was just too much with such a high network speed. Worth a try mate and if it doesn't work for you it's easy to switch them back. I've gone from having a speed graph that was way worse than yours (up and down every couple of seconds, 20 MiB/sec to 1 MiB/sec) before eventually giving up and staying around 1-2 MiB/sec permanently. Now I can download at 20 MiB/sec without breaking a sweat. 2 LZ1 and Staff reacted to this Quote Share this post Link to post
rainmakerraw 94 Posted ... PS: I have just noticed at the top of the Networx graph photo you posted that it says 'All Wireless Connections'. Speed fluctuations like that can also be a wifi issue, so before anything I would try to use ethernet to rule out the wifi. If it works OK on ethernet you can save a lot of hassle tweaking and work on that (change channel, change channel widths, change PHY). If it still happens then you know it's probably a machine/disk/cache issue. 2 Staff and gboy421310 reacted to this Quote Share this post Link to post
airvpn18259 2 Posted ... Guys I just wanted to update this thread. I found out the issue. It wasn't my HDD, SSD, CPU or RAM issue. It was my external USB Wireless adapter that kept dropping connections every few seconds. I got a new wireless adapter and it's been working flawlessly. 2 rainmakerraw and go558a83nk reacted to this Quote Share this post Link to post