11 ? your luck. keep posted On Wed, 19 Feb 2025, 03:48 Gurpinder, <singaaa1...@gmail.com> wrote:
> cores how many 8 > where are you getting them from ? > > On Wed, 19 Feb 2025, 03:47 boldsuck via tor-relays, < > tor-relays@lists.torproject.org> wrote: > >> On Tuesday, 18 February 2025 17:00 usetor.wtf via tor-relays wrote: >> > Another question - what's the most optimal count of Tor relays per IP >> when >> > using an IPv4 /24, i.e. roughly 256 IPs? Looking for thoughts / >> guidance as >> > this can quickly be a costly endeavor with slow turn around times on >> > securing data center capacity. >> >> The number of IPs is unimportant. >> CPU cores count and network bandwidth, fast cores, the fastest and best >> cooling! The higher the CPU clock speed, the more MiB/s traffic per tor >> instance. >> Slam 60 tor instances onto a 64-core CPU (or 120 instances on 128 core) >> with >> 2x10 or 2x25G card and let it run for a few weeks. Then you will see if >> you >> can create some more instances. >> You also have to do DNS. PowerDNS + dnsdist is your friend with 2x10G or >> more. >> Where do you do BGP on the server or router? Full table BGP need >> recources >> too. You can't fully utilize a /24 with 6x 64 core servers on a 100G >> Router. >> >> > Current hypothesis is around 2 Tor Instances per 256 IPs for 512 relays >> at 5 >> > MiB/s each needing 21 Gbps port speed. See details below. >> > >> > Option 1: Is it 8 Tor instances per IP, the current maximum? 2048 total >> Tor >> > instances across 256 IPs in /24? 1/4 of the current ~8000 running relays >> > (~8200 relays bandwidth measured today)? Seems too many. Example: At 256 >> > IPs, 8 Tor instances per IP, average speed of 10 MiB/s per Tor relay, >> need >> > roughly 172 Gbps, which is much less common, especially among volunteer >> Tor >> > relays. >> > >> > Option 2: Is it 1 Tor instance per IP, the minimum amount per IP? When >> Tor >> > is blocked, it's done by IP, so have 8 per IP is less efficient when 256 >> > are available to spread out the relays and minimize blockage, unless the >> > full /24 gets blocked? Example: At 256 IPs, 1 Tor instances per IP, >> average >> > speed of 10 MiB/s per Tor relay, need roughly 21 Gbps, which seems much >> > more reasonable using 2 x 10 Gbps links on one node with ~256 cores or >> > split across 2 nodes of each having 10 Gbps and 128 cores. >> >> If you use a /24 for Tor exit traffic, it is completely blacklisted >> anyway. Stop >> doing the math ;-) >> >> > Option 3: Seems like the ideal would be however many can be utilized per >> > available bandwidth? >> > >> > Here's a rough sizing table (attached and inline) of Port Speed in Gbps >> > needed depending on # of available IPs, # of Tor instances per IPv4 and >> > Speed per Tor (MiB/s). Legend: <= 10 Gbps is green, <= 20 Gbps is >> yellow, >> > and > 20 Gbps is red. >> > >> > During the Fall of 2021, I saw ~15 MiB/s per Tor Instance and now I see >> > around ~5 MiB/s per Tor Instance (no changes on my servers other than OS >> > and Tor updates). >> > >> > Current conclusion: I'm looking at the 256, 2, 512, 5, 2560, 21 row as >> where >> > I'll likely start. 512 is a lot of Tor instances... [image.png] >> > >> > ~8200 relays bandwidth measured today: >> > https://consensus-health.torproject.org/graphs.html >> > >> > Sent with [Proton Mail](https://proton.me/mail/home) secure email. >> > >> > On Monday, February 3rd, 2025 at 8:00 AM, usetor.wtf >> <usetor....@protonmail.com> wrote: >> > > Hi All, >> > > >> > > Looking for guidance around running high performance Tor relays on >> Ubuntu. >> > > >> > > Few questions: >> > > 1) If a full IPv4 /24 Class C was available to host Tor relays, what >> are >> > > some optimal ways to allocate bandwidth, CPU cores and RAM to maximize >> > > utilization of the IPv4 /24 for Tor? >> > > >> > > 2) If a full 10 Gbps connection was available for Tor relays, how >> many CPU >> > > cores, RAM and IPv4 addresses would be required to saturate the 10 >> Gbps >> > > connection? >> > > >> > > 3) Same for a 20 Gbps connection, how many CPU cores, RAM and IPv4 >> > > addresses are required to saturate? >> > > >> > > Thanks! >> > > >> > > Sent with [Proton Mail](https://proton.me/mail/home) secure email. >> >> >> -- >> ╰_╯ Ciao Marco! >> >> Debian GNU/Linux >> >> It's free software and it gives you >> freedom!_______________________________________________ >> tor-relays mailing list -- tor-relays@lists.torproject.org >> To unsubscribe send an email to tor-relays-le...@lists.torproject.org >> >
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