High Latency

  • Poly
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Post 3+ Months Ago

Figured I would post this here and see if anybody has any idea's on this.

I've got a CentOS server running version 6.0 64bit. It has 6 IP's assigned to it. .64 is the main IP, .65 is where my site is running. All of the IP's, including .64, are responding at extremely low latency rates(5ms), however, the IP that has the site running on it(.65) is running very slowly(6000-9000ms). Anybody have any idea what could be causing this?
  • Daemonguy
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Post 3+ Months Ago

When you say it has 6 IP's, are they virtual IP's or distinct network adapters?

Have you looked into centos' manual regarding things like ktune and tuned? For some odd reason tuning paramteres in power management has some effect on IO.

lso have you tried moving the web server to another port to see if the problem follows? What are you doing to those other IP's that you don't see latency? Smokeping? HTTP is TCP based remember.. different rules apply.

Look up TCP tuning if that ends up being the case.

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