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Asked: 2012-01-07 07:14:28 +0800 CST

What to check if Centos server is very slow

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I have Linux VPS server 2Gb RAM but when i usee ssh then it is very slow. Sometimes it takes many seconds to see the character typed.

I tried free -m and it says 1670MB free

I tried top command and there is no command having high cpu usage. only sshd is using 0.3% CPU.

linux centos

3 Answers

  1. I think your internet line is slow rather than your vps from your remarks.

    When you connect with ssh on a slow line (or when you are downloading) you can make the shell lag.

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  2. Your VPS provider is either capping upload (at least) or is being DDOS'd or flooded to death. I have found that most "cheap" VPS providers have these issues.

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  3. As others have said it's very possible it's your home internet.

    I have the same problem due to packet loss, at peak times I get between 10-40% packet loss, this makes characters take as long as 5 seconds to appear on my terminal, very frustrating.

    Do a ping test at http://pingtest.net/ to check.

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