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My web server's response time for http requests skyrockets every |
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weekday between about 9am and 5pm. I've gone over my munin graphs and |
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the only one that really correlates well with the slowdown is "TCP |
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Queuing". It looks like I normally have about 400 packets per second |
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graphed as "direct copy from queue" in munin throughout the day, but 2 |
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to 3.5 times that many are periodically graphed during work hours. I |
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don't see the same pattern at all from the graph of all traffic on my |
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network interface which actually peaks over the weekend. TCP Queuing |
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doesn't rise above 400 packets per second all weekend. This is |
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consistent week after week. |
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|
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My two employees come into work during the hours in question, and they |
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certainly make frequent requests of the web server while at work, but |
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if their volume of requests were the cause of the problem then that |
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would be reflected in the graph of web server requests but it is not. |
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I do run a small MTU on the systems at work due to the config of the |
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modem/router we have there. |
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|
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Is this a recognizable problem to anyone? |
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|
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- Grant |