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Slow down CPU to simulate slower computers in browser testing

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I'm trying to see how our web pages behave on an average customer's computer. We have not yet pinned down this configuration, but it's likely to be slower than what our developers and testers will have.

I've seen answers to similar questions that suggest throttling bandwidth and using a VM where the memory has been limited, but do I also need to slow down the CPU? I am under the impression that the CPU will run fairly close to full speed, even in a VM. Are there virtual machine platforms that allow you to limit the CPU cycles? I saw one suggestion to run something like Folding @ Home, but I would welcome other suggestions to throttle the CPU speed.

I've seen this question: How to Slow down the browser, and others that talk about limiting bandwidth.

Edit: I suppose I need to be concerned about how many cores/processors are available to the VM as well. Do most VM platforms give you the option of limiting this?

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Bernard Chen Avatar asked Jan 12 '11 20:01

Bernard Chen


People also ask

How to slow down pc for testing?

Go to Power Options -> Create a power plan -> Change advanced power settings and set CPU Maximum Rate to 5% or how much you need. This usually helps test browser apps on slower configs.

How do I intentionally slow down my computer?

Remove RAM (or diable in the BIOS) Switch to generic video drivers (I mean "Generic SVGA" type, that are un-accelerated) Disable core(s) in the BIOS. Slow the CPU down in the bios (if possible)


1 Answers

This is a fast solution, but not very accurate when it comes to end-user specs, but it helps a lot to test things on slower systems:

Go to Power Options -> Create a power plan -> Change advanced power settings and set CPU Maximum Rate to 5% or how much you need.

This usually helps test browser apps on slower configs.

like image 158
CatalinBerta Avatar answered Oct 27 '22 01:10

CatalinBerta