Shell Programming and Scripting

I know how to check the CPU utilization and memory space
like:

Code:

vmstat
top
free

What i want ot check on my linux system is...
how much CPU are available on my system and do i need to put extra CPU.
Also need to check the hardware configuration and the space related to the same

thanks

vmstat should show you. Check for the run-Queue and the CPU columns us,sy,id,wa. Monitor over a longer time and check peak times where idle goes to (or close to) zero and where your run-queue of the kthreads is very high (approx. larger than your number of CPUs *2).

What do you mean with "check the hardware configuration"? Do you want to use something like hwinfo? What do you mean with "space"? Disk space? memory? Disk space is usually primarily related to your application(s) running on the box, not to the hardware configuration.

ok may be i didnt explained properly..
Any command to check how many RAM are connected and whats it size..
And how many CPU are in my system and is it loaded so that i can put one more or rather 2 in the box for better performances...

---------- Post updated at 06:01 PM ---------- Previous update was at 05:58 PM ----------

Also when i used vmstat it shows

Code:

procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 0  0  73840  20340 173540 5733740    0    0    19    12    0    0  0  0 100  0  0

Is it fine from the output or do i have to see more stuff and checks...

Code:

head -1  /proc/meminfo
MemTotal:      1002488 kB
# or
free

Number of CPUs etc. is located in /proc/cpuinfo for example:

Code:

grep -c processor.*: /proc/cpuinfo
1

The 1st line of vmstat is usually the average since last boot. So you'll have to issue for example a

Code:

vmstat 1 20

But as said - you have to do this over a longer time to get an impression.