In a way, TCP is to UDP what something like Hibernate is to writing your queries by hand in SQL. So yes, UDP doesn’t offer the whole kit, but as we’ll see, that’s exactly why it’s so great. With TCP you can get started and don’t worry too much about those things – not until you start having 500+ simultaneous connections anyway. This is while people often recommend TCP.
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Neither of those are offered by UDP “out of the box”, while you get it for free with TCP. However, for most situations you actually need some concept of a connection, some rudimentary ordering and often also reliability. You also use a single socket for communication – unlike TCP which require a socket for each connected client. UDP is both easier and more difficult than TCP.įor example, UDP is packet based – which is something you’ll actually have to roll yourself for TCP. This is what can push a ping up to the 1000+ ms range on 3G or WiFi due to loss of a single packet. There is no way to get around this, this is just the way TCP works on a very fundamental level. On 3G/WiFi on packet loss you want the replacement packet to be sent as soon as possible, but the TCP congestion control actually does the reverse! Basically TCP interprets packet loss as a result of limited bandwidth, and throttles packet sends. However, the most damning property of TCP is the congestion control. In theory, the advantages of TCP are things like:Īnyone with hands-on experience with TCP knows that a solid implementation needs to handle many not-so-obvious corner cases, such as disconnect detection, packet congestion due to slow client response, various DoS attack vectors relating to establishing connections, blocking vs non-blocking IO etc.ĭespite the up-front ease of use, a good TCP solution isn’t easy to code. In fact, it started out with TCP, but when it became obvious that we couldn’t get connection quality we wanted, we switched to UDP. From my point of view, TCP is the safe and well-known alternative.ĭespite that, our current project is using UDP, and there is no way we could have it work well with TCP.
I worked for years on a leading poker network’s game servers and we’d typically run 4,000 – 10,000 connections on each server instance during peak (with multiple instances running on a single machine) without any problems. Backgroundįirst off, let me state that my background is mainly TCP programming. Unfortunately, these opinions don’t properly reflect the complexity of the TCP/UDP question. Typically you will hear people say things like: “Unless you’re doing action games, you can use TCP” or “You can use TCP for your MMO, because look at WoW – it uses TCP!” Follow the instructions below.When writing networked games, the question of UDP vs TCP will eventually come up.
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We do not want to stand aside, so let us summarize our year results (in fact, a little less than a year). So, 2019 has come to an end, many are summing up the results of the past year, or even decades. Now you can save your preferences in our browser extension. Also we created a channel in Telegram, so you can get the latest news about bot and website. We are glad to announce that our telegram bot for temporary email is now open for everyone.
Today is a big day because we finally released a new forwarding version with new features. But now you can forget about this problem by using email history 📋 Sometimes we forget, what email we have one-two days ago.
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