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>> >> I haven't mentioned it yet, but several times I've seen the website |
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>> >> perform fine all day until I browse to it myself and then all of a |
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>> >> sudden it's super slow for me and my third-party monitor. WTF??? |
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>> > |
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>> > I had a similar problems once when routing through a IPsec VPN tunnnel. |
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>> > I needed to reduce MTU in front of the tunnel to make it work |
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>> > correctly. But I think your problem is different. |
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>> |
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>> I'm not using IPsec or a VPN. |
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>> |
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>> > Does the http server backlog on the other side? Do you have performance |
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>> > graphs for other parts of the system to see them in relation? Maybe |
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>> > some router on the path doesn't work as expected. |
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>> |
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>> I've attached a graph of http response time, CPU usage, and TCP |
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>> queueing over the past week. It seems clear from watching top, iotop, |
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>> and free than my CPU is always the bottleneck on my server. |
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> |
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> I'm going to throw one more tool at you; give atop a try. (htop is nice, too, |
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> but atop is more powerful.) |
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I think I got it. I'll post all the gory details shortly. |
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- Grant |
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