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I have servers running VMWare. The server is a Intel Xeon with 96 Gio of RAM. We need to increase the RAM on the server (assume with the same memory model). Somebody told me adding more memory to a computer can slow it because there's more address space to look after.

I'm pretty sure it's bullshit and I can't find any paper that confirm that adding memory can slow down a computer. Instead, I have only documentation that confirm that it can speed it because it can have a bigger swap.

So my question is : Can adding RAM to a server can make it slower? If so, is it perceptible? Do you have any documentation on the subject?

MadHatter
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efficks
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1 Answers1

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Adding more RAM to a server will probably make the boot process (or more specifically the POST) slower, because that normally includes a some level of memory checking.

I've never heard anyone claiming that adding more RAM will slow down a server once it's running through (unless you have mismatched RAM, or there's an issue with the specific board/chipset).

rbsec
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