[tor-relays] Relay Overloaded and Dropping Onionskins

[bidulock_ringrose--- via tor-relays <tor-relays@xxxxxxxxxxxxxxxxxxxx>]

    Greetings! I hope this is
      the right list to be asking this, if it is not please forgive me.
      I am purposefully omitting some identifying information for
      privacy sake.
      
      I run 2 non-exit relays both with an advertised bandwidth of
      around 8 MiB/s each. I have noticed that they have been overloaded
      a lot lately. These relays have been bottlenecked at the 3-4 MiB/s
      mark ever since I put them online. Upon further investigation,
      when I curled the MetricsPort according to https://support.torproject.org/relay-operators/relay-bridge-overloaded/,
      the following metrics stood out to me. Both relays run on the same
      machine with the same IP address. I hope the obfuscation makes
      sense. Side note: I am using Toralf's ddos-inbound script, which
      has not dropped any connections at all for me when using the -b
      then -s switch. CPU utilization is high (80%) on one core but low
      on the rest (5-30%) In the syslog, I also get spammed with "Your
      computer is too slow to handle this many circuit creation
      requests! Please consider using the MaxAdvertisedBandwidth config
      option or choosing a more restricted exit policy. [28xxx similar
      message(s) suppressed in last 34200 seconds]"
      
      Relay 1:
      tor_relay_load_onionskins_total{type="ntor_v3",action=""}
      750xxxx
      tor_relay_load_onionskins_total{type="ntor_v3",action=""}
      17
      tor_relay_load_global_rate_limit_reached_total{side="read"} 6xxxx
      tor_relay_load_global_rate_limit_reached_total{side="write"}
      17xxxx
      
      Relay 2:
      tor_relay_load_onionskins_total{type="ntor_v3",action=""}
      10xxxxxx
      tor_relay_load_onionskins_total{type="ntor_v3",action=""}
      28xxxx
      tor_relay_load_global_rate_limit_reached_total{side="read"}
      20xxxxx
      tor_relay_load_global_rate_limit_reached_total{side="write"}
      19xxxx
      
      All other metrics are normal according to the article on
      overloaded relays. This runs in a Debian Proxmox VM using the host
      cpu, so no CPU virtualization. 4 cores, 8GB memory, and AES is
      supported. It's 2x Xeon 2628v3s with NUMA enabled in the VM (2
      sockets, 2 cores per socket). Enabling NUMA and de-virtualizing
      the CPU has helped increase my top bandwidth by around .7 to .9
      mbytes/s, but still not great.
      
      Thank you in advance.
      
    
  

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