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slowwwwwwwwwwwwwwwness on the server

     
1:42 pm on May 25, 2006 (gmt 0)

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here is the top from the server, the sites it servers isnt slow slow, but anything else is really slow, moving around on the shell, login to the shell/ssh. dog slow.

top - 11:30:36 up 13 days, 20:16, 1 user, load average: 0.18, 0.37, 0.63
Tasks: 119 total, 1 running, 118 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.6% us, 1.3% sy, 0.0% ni, 97.1% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 93980k total, 92068k used, 1912k free, 3124k buffers
Swap: 196600k total, 99052k used, 97548k free, 11584k cached

3:48 am on May 26, 2006 (gmt 0)

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What's the network utilisation like?

Is it slow from "Everywhere", as in, not just from your house, but also from right next to it with a cross-over cable?

Anything else in that network that could slow down the link? Anything going on re: disk usage? maybe some kind of script that runs constantly, doing an rsync or similar?

Also, this concerns me:

Mem: 93980k total, 92068k used
Swap: 196600k total, 99052k used,

Time to get some more RAM. You have a lot of swap used, on a percentage basis ( > 100% your physical RAM )

10:50 pm on June 9, 2006 (gmt 0)

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The problem should be at network/ethernet level,not something with memory/cpu
10:08 pm on June 23, 2006 (gmt 0)

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top - 11:30:36 up 13 days, 20:16, 1 user, load average: 0.18, 0.37, 0.63
Tasks: 119 total, 1 running, 118 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.6% us, 1.3% sy, 0.0% ni, 97.1% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 93980k total, 92068k used, 1912k free, 3124k buffers
Swap: 196600k total, 99052k used, 97548k free, 11584k cached

119 processes (which probably are mostly apache httpd servers) in just 92 MB of RAM is asking for problems. The server is constantly swapping pages in and out. The ideal webserver has no single byte in swap space because it should respond to requests in near-realtime.

Short term load average is 0.63 which indicates that the run-queue contains an average of 0.63 runable processes, where the short term CPU usage is only 2.9%, so only 0.03 of the time is used to run the runable processes. The other time the runable processes are blocked in the queue waiting for an I/O action (mostly disk I/O) to complete. This indicates that the processor is mainly waiting for the disks swapping pages in- and out. Half of the used CPU time is used by system processes, which is a further indication that disk I/O is causing the problem.

My advice is to upgrade to more RAM.

 

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