Linux testing – CPU & disk

central-processing-unitlinuxload-testingperformance

I am a bit rusty lately. What is the standard way to test CPU and disk I/O these days?

Best Answer

One test I do is compile the kernel. Maybe prime. Also I'm refering to this list quite a lot lately as I am testing a lot of VM configurations.

http://www.overclockers.com/forums/showthread.php?t=486495

As for "standard", I'm not sure there is one. What I think you might want to do is create a set of tests that are standard for you and apply that to your variations.

Related Solutions

Linux Hard Disk Load – How to Monitor Hard Disk Load on Linux

You can get a pretty good measure of this using the iostat tool.

% iostat -dx /dev/sda 5

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.78    11.03    1.19    2.82    72.98   111.07    45.80     0.13   32.78   1.60   0.64

The disk utilisation is listed in the last column. This is defined as

Percentage of CPU time during which I/O requests were issued to the device (band-width utilization for the device). Device saturation occurs when this value is close to 100%.

Throttle down CPU speed of VMWare image

This is not possible with the Player and Server products, but I believe it is in the ESXi (the free "bare-metal hypervisor" product) and the paid-for products like VMWare Workstation.

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Related Solutions

Linux Hard Disk Load – How to Monitor Hard Disk Load on Linux

Throttle down CPU speed of VMWare image

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