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paoloardoino's profile
Paolo Ardoino
Paolo Ardoino
Paolo Ardoino
Verified account
@paoloardoino

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Paolo ArdoinoVerified account

@paoloardoino

CTO @bitfinex + CTO @tether_to [Views are my own]

London
github.com/prdn
Joined January 2010

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    1. SBF‏Verified account @SBF_FTX 24 Jan 2020

      Fun fact: lots of exchanges claim their matching engine can process huge numbers of orders per second. They're basically all lying.

      15 replies 12 retweets 254 likes
    2. Paolo Ardoino‏Verified account @paoloardoino 25 Jan 2020
      Replying to @SBF_FTX @SBF_Alameda

      1/2 The lie is more subtle. You can easily create a matching engine that have that perf. 2 red-black tries + binary UDP I/O. The real lie is that most of exchanges can't handle writing, reconciling and distributing data at that speed: internal distribution, DB I/O, user delivery

      4 replies 2 retweets 23 likes
    3. Paolo Ardoino‏Verified account @paoloardoino 25 Jan 2020
      Replying to @paoloardoino @SBF_Alameda

      2/2 Using a cloud provider and not a dedicated infrastructure affects the ability to reach higher speeds as well. AWS disks throughput has bursts, latency between hosts is not under your control, ... Owned racks, while more painful to manage, are better to get that kind of speed

      2 replies 1 retweet 11 likes
    4. taipan capital‏ @taipancapital 25 Jan 2020
      Replying to @paoloardoino @SBF_Alameda

      More painful but more secure.

      1 reply 0 retweets 1 like
      Paolo Ardoino‏Verified account @paoloardoino 25 Jan 2020
      Replying to @taipancapital @SBF_Alameda

      Indeed. We have cameras all around the racks. Locked room with pin etc. It really feels better. AWS is great for a start but try to have mongo or mysql writing at high speed. You'll want to hang yourself after few days

      1:16 AM - 25 Jan 2020
      • 2 Likes
      • btc4all taipan capital
      0 replies 0 retweets 2 likes

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