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webserver horrible slow, sometimes incredible fast

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http://serverfault.com – i am running a small community ( 6000+ Members ) on a non-virtual 64-bit ubuntu 11.04 system. I am not a Linux-pro, not even advanced, i just tried to setup a webserver, which does nothing special actually. Delivering some dynamic PHP and RoR websites is its task. So it might be that my configuration files do look horrible bad. Also, i might use the wrong vocabulary, so in doubt, please ask. Having a current all-time record of 520 registered users (board-accounts, no system-users) online at same time, average server-load is about 2.0 - 5.0. Meantime (~250 users) average server load value is (HowTos)

dayu's picture
Submitted by dayu on 07/04/2012 – Made popular on 07/04/2012

Stories similar to webserver horrible slow, sometimes incredible fast

Load Average on a server reflects the current state of the server. Higher the load average, poorer is the server performance. The following shell script monitors the load average on the Linux server and inform the server administrator with the current running processes if the load average is greater than the defined threshold. Create a file, [...]

By running top, htop, uptime, etc. we can see the load average as three values indicating the average load for the last 1/5/15 minutes (well not really, but that isn't the question here).

Sometimes I'll notice that I have a fairly high load average for the last 15 minutes, but the current load is very low.

What's Your Uptime? 1 year 47 weeks ago

Desktop00:05:08 up 2 days, 8:13, 2 users, load average: 0.25, 0.10, 0.07Laptop <- just started  a live cd23:05:27 up 5 min, 6 users, load average 0.09, 0.09, 0.05Server00:07:56 up 19 days, 13:55, 1 user, load average: 0.00, 0.01, 0.05Firewall00:48:55 up 1 day, 12:24, 1 user, load average: 0.00, 0.01, 0.05

George.Harmony https://bbs.archlinux.org/profile.php?id=36546

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Ubuntu Server 12.04 CPU Load 38 weeks 21 hours ago

I have a Server (2x Hexa-Core Xeon E5649 2.53GHz w/HT with 32GB RAM and 20000 GB Bandwidth) running Ubuntu Server 12.04 LTS.

Hello,

I have a Server (2x Hexa-Core Xeon E5649 2.53GHz w/HT with 32GB RAM and 20000 GB Bandwidth) running Ubuntu Server 12.04 LTS.

I have a lan of maybe 20 - 30 computers, and a Windows server 2003 server on hand (I can also run any x86 Linux distro).

What I am trying to do, is to redirect users to a webserver inside the LAN the first time they visit certain domains.

Let me get your thoughts on terminal server performance problems. The server hosts average 25 users which, after running some numbers, on average use 600MB memory with their main applications running (web browser, adobe reader, IP phone client). All users are on the same LAN as server. We constantly experience slow response and short session lockups. Combined CPU usage is on average 10%.

I have 2 machine.

Hi All,

I have just setup a webserver running on a linux box. This server has 2 ethernet cards and only 1 is in used now. eg. 192.168.10.1 is my server IP. All users from 192.168.10.X can access my webserver. However, users from another LAN 10.10.10.X are not able to access my webserver. They can ping and receive response from my server yet web browing is not possible.