Re: [tor-relays] Recommended specifications for 1Gbps exit
On Mon, 04 Mar 2013 18:37:01 + Matt Joyce torad...@mttjocy.co.uk allegedly wrote: Of course being a server any contention is more likely going to be on the other side, but while I can find gigabit capable servers to try pulling from finding one to try pulling from me is entirely another story. I did make a test file if anyone has the connection and 1GB of bw to try please let me know what you get http://torexit2.mttjocy.co.uk/1GBtest.bin Matt A thought. You could try for yourself using the same service I used at https://www.digitalocean.com/features if you wanted to run some more tests. Digital Ocean sell their droplets by the hour. So you could easily fire up a test VM for less than the cost of a coffee and doughnuts... Mick - blog: baldric.net gpg fingerprint: FC23 3338 F664 5E66 876B 72C0 0A1F E60B 5BAD D312 - signature.asc Description: PGP signature ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
Re: [tor-relays] Recommended specifications for 1Gbps exit
On Mon, 04 Mar 2013 18:37:01 + Matt Joyce torad...@mttjocy.co.uk allegedly wrote: Of course being a server any contention is more likely going to be on the other side, but while I can find gigabit capable servers to try pulling from finding one to try pulling from me is entirely another story. I did make a test file if anyone has the connection and 1GB of bw to try please let me know what you get http://torexit2.mttjocy.co.uk/1GBtest.bin Here you go: http://rlogin.net/tor/torexit2.txt Deeply unscientific, but real world. Mick - blog: baldric.net gpg fingerprint: FC23 3338 F664 5E66 876B 72C0 0A1F E60B 5BAD D312 - signature.asc Description: PGP signature ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
Re: [tor-relays] Recommended specifications for 1Gbps exit
On 02/26/2013 08:46 AM, Matt Joyce wrote: I am wondering if anyone with experience in this area could advise me some on recommended specifications for a 1Gbps exit [snip] What DNS configuration will/are you using to handle the avalanche of resolution requests? ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
Re: [tor-relays] Recommended specifications for 1Gbps exit
Hi Matt, Tor indeed does not use more than one core for most of its operations, effectively limiting throughput to ~100MBps per Tor process on a non-AES-NI machine. A CPU with AES-NI support can do up to 300-400MBps per Tor process. You will have to run multiple Tor processes. See https://www.torservers.net/wiki/setup/server#multiple_tor_processes for a handy initscript. On 26.02.2013 14:46, Matt Joyce wrote: I am wondering if anyone with experience in this area could advise me some on recommended specifications for a 1Gbps exit I think my latest once needs a package upgrade to handle it, currently seems stuck at around 100Mbps worth of traffic. Currently it has access to 3 v cores @1.33Ghz and 1GB of RAM and I think the latter might be becoming the limit instead now I had thought it was the CPU when it had just the one core but that alone hasn't helped. I am not entirely sure if tor is infact using the other cores though watching with top it is sitting at 100 or a fraction over like 104% or so. MaxCPU's is set in torrc to 4 as the OS sees 4 virtual cores but is capped to 300% by the hypervisor perhaps it should be set to 3 not sure if there is any benefit in setting to 4 I have limited experience with virtual servers but unfortunately a fully dedicated server for tor is financially out of my budget at the moment. Also, just to confirm while I'm aware it's very possible that the limitation could be bandwidth given it shares with the other VPS'es on the host I don't believe that was the case, I pulled a backup from there to another server of mine on a different AS and continent and it transferred at 250Mbps while tor was running at 100Mbps the entire time, so unless the contention is over the download which seems less likely for a server I think we should be able to get a good 300Mbps of exit capacity out of this possibly more. So can anyone can advise on recommended CPU, RAM have to consider budget but will try and meet them, also if there are any settings I should check in torrc? ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays -- Moritz Bartl https://www.torservers.net/ ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
Re: [tor-relays] Recommended specifications for 1Gbps exit
Thanks, just set it up with 3 a few hours ago, will take a while before starts advertising the full bandwidth again I guess. I'm a little confused though for some reason only two of the instances show up in atlas, the other one just keeps complaining it isn't in the cached consensus and isn't seeing any usage either consensus health over at metrics mentions that instance but nothing more it's reporting blank for all of them what am I missing? On 26/02/13 13:57, Moritz Bartl wrote: Hi Matt, Tor indeed does not use more than one core for most of its operations, effectively limiting throughput to ~100MBps per Tor process on a non-AES-NI machine. A CPU with AES-NI support can do up to 300-400MBps per Tor process. You will have to run multiple Tor processes. See https://www.torservers.net/wiki/setup/server#multiple_tor_processes for a handy initscript. On 26.02.2013 14:46, Matt Joyce wrote: I am wondering if anyone with experience in this area could advise me some on recommended specifications for a 1Gbps exit I think my latest once needs a package upgrade to handle it, currently seems stuck at around 100Mbps worth of traffic. Currently it has access to 3 v cores @1.33Ghz and 1GB of RAM and I think the latter might be becoming the limit instead now I had thought it was the CPU when it had just the one core but that alone hasn't helped. I am not entirely sure if tor is infact using the other cores though watching with top it is sitting at 100 or a fraction over like 104% or so. MaxCPU's is set in torrc to 4 as the OS sees 4 virtual cores but is capped to 300% by the hypervisor perhaps it should be set to 3 not sure if there is any benefit in setting to 4 I have limited experience with virtual servers but unfortunately a fully dedicated server for tor is financially out of my budget at the moment. Also, just to confirm while I'm aware it's very possible that the limitation could be bandwidth given it shares with the other VPS'es on the host I don't believe that was the case, I pulled a backup from there to another server of mine on a different AS and continent and it transferred at 250Mbps while tor was running at 100Mbps the entire time, so unless the contention is over the download which seems less likely for a server I think we should be able to get a good 300Mbps of exit capacity out of this possibly more. So can anyone can advise on recommended CPU, RAM have to consider budget but will try and meet them, also if there are any settings I should check in torrc? ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays signature.asc Description: OpenPGP digital signature ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
Re: [tor-relays] Recommended specifications for 1Gbps exit
On Tue, Feb 26, 2013 at 11:54:59PM +, Matt Joyce wrote: I'm a little confused though for some reason only two of the instances show up in atlas, the other one just keeps complaining it isn't in the cached consensus and isn't seeing any usage either consensus health over at metrics mentions that instance but nothing more it's reporting blank for all of them what am I missing? The tor consensus will only list at most 2 relays per IP address. So if you want to run 4 relays, put them on two IP addresses. https://gitweb.torproject.org/torspec.git/blob/HEAD:/proposals/109-no-sharing-ips.txt --Roger ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
Re: [tor-relays] Recommended specifications for 1Gbps exit
On 26/02/13 23:57, Roger Dingledine wrote: On Tue, Feb 26, 2013 at 11:54:59PM +, Matt Joyce wrote: I'm a little confused though for some reason only two of the instances show up in atlas, the other one just keeps complaining it isn't in the cached consensus and isn't seeing any usage either consensus health over at metrics mentions that instance but nothing more it's reporting blank for all of them what am I missing? The tor consensus will only list at most 2 relays per IP address. So if you want to run 4 relays, put them on two IP addresses. https://gitweb.torproject.org/torspec.git/blob/HEAD:/proposals/109-no-sharing-ips.txt --Roger ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays Ah, looks like I will need to look at requesting another IP address, again finding myself glad I asked the question rather than doing my usual try to figure it out myself because I was at a complete loss. signature.asc Description: OpenPGP digital signature ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
