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I concluded a pretty simple test to measure some latencies. I connected to two providers (Infura and Quiknode) with Web3.js and subscribed to new block headers. Then I compared the time of arrival and the block timestamp in the header to calculate a latency. I got the following results (left Infura, right Quiknode):enter image description here

Both of them has a pretty high latency. Is this due to their complex infrastructure, or due to the P2P nature of the blockchain? This seems too high for me, so I guess I can achieve much lower latencies by running my own node. Is this likey?

What is theoretical average latency of such a distributed network?

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  • typical latency on internet is 100 ms: wondernetwork.com/pings/New%20York
    – Nulik
    Jan 24, 2021 at 18:35
  • Yes, it's clear, but not every node is connected to every nodes that's why the information propagation through a p2p network takes a lot of steps until arrives to me.
    – Wyctus
    Jan 24, 2021 at 19:35

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