Advice on Total Traffic and CPU Usage

[tenaki]

I seem to be never free of high traffic and cpu usage to the point that at this very moment in time my VPS is stalling

Total Traffic Used 57.7 GB (Thats my limit although it says no limit the indicator is full)

CPU Usage Used 122.0 % (0.0 % of 100.0 % available) Ouch

Disk Space Used 6.5 GB (8.5 GB of 15.0 GB available)

Memory Usage Used 303.4 MB (208.6 MB of 512.0 MB available)


Plesk VPS
CPU GenuineIntel, Intel® Xeon®CPU E5504 @ 2.00GHz
Version psa v8.6.0 os_CentOS 5
OS Linux 2.6.18-

Where should I look to start find out whats eating into the first 2?

[Royzee]

Your RAM is probably insufficient. My forum when not busy is using well over 500MB, and you only have 512 to begin with.
Other than that, the CPU Usage is qute high, especially with a quad core processor.

My guess is you have too small a package. Won't mention the name as against the rules (you can PM me) but for $40 I have:

2048MB Ram (4096 burst)
120GB Hard drive
Quad core @ 2.67GHz
CentOS 5 64bit

It is unmanaged but not hard to setup. I prefer unmanaged because I can add, or change, whatever I want.

[Rheddy]

Is that a single core CPU or dual core? I know I had similar problems but my webhost upgraded the server from 2 cores to 4 cores and I saw a big boost in speed and it knocked my CPU speed down ... a huge decrease in server loads.

[AndyF]

Moved to Server Management

[Gary.]

First thing you want to find out is the CPU and see what is generating the load.

In SSH type top then hit enter key,

top

The window willshow all the processes and high ones, See what location is using the most / usr/bin/php and paste it back,

When you copied it, Also copy the memory output, So in SSH the window you have is "top"

Click the window, The press CTRL + M

ctrl +m

This will re-order things and show the processes by memory so what ever is using the most will show up at the top.

Make sure it's not your mysql causing the issue, Has it been optimized ?

In SSH, press Q, This will put you back to the default location, Now type in:

wget mysqltuner.pl

This will download a mysql tuner and show you changes what you need to make to optimize it:

Now once it's downloaded you need to run this, You can do that by typing in:

perl mysqltuner.pl

Let it run, And post the entire output in here, Once done I can give you everything based on what the output is of everything I asked.

Thanks.

Gary.

[tenaki]

Hi I managed the first bit

Tasks: 44 total, 1 running, 43 sleeping, 0 stopped, 0 zombie
Cpu(s): 2.1%us, 0.6%sy, 0.0%ni, 97.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 524288k total, 324176k used, 200112k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 0k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10179 apache 15 0 319m 44m 4244 S 9.0 8.7 0:02.60 httpd
10104 apache 15 0 316m 42m 4264 S 6.7 8.2 0:04.63 httpd
1571 mysql 15 0 367m 38m 5896 S 3.0 7.5 211:00.36 mysqld
10126 admin 15 0 12624 1208 936 R 0.3 0.2 0:00.18 top
1 root 15 0 10364 752 628 S 0.0 0.1 0:02.93 init
1123 root 15 -4 12620 680 360 S 0.0 0.1 0:00.00 udevd
1438 named 18 0 220m 4264 1916 S 0.0 0.8 0:00.28 named
1460 root 15 0 151m 1952 588 S 0.0 0.4 0:10.98 rsyslogd
1464 root 18 0 3820 420 336 S 0.0 0.1 0:00.00 rklogd
1476 root 15 0 62632 1212 652 S 0.0 0.2 0:14.86 sshd
1489 root 15 0 21660 948 736 S 0.0 0.2 0:02.87 xinetd
1521 root 18 0 11944 1428 1184 S 0.0 0.3 0:00.00 mysqld_safe
1598 root 15 0 40936 948 568 S 0.0 0.2 0:00.00 couriertcpd
1600 root 18 0 33624 1492 1140 S 0.0 0.3 0:00.00 courierlogger
1608 root 15 0 40936 952 568 S 0.0 0.2 0:00.06 couriertcpd
1610 root 18 0 33624 1492 1140 S 0.0 0.3 0:00.04 courierlogger
1616 root 18 0 40936 952 568 S 0.0 0.2 0:00.04 couriertcpd