RAM Question - Compiling on Skylake

[Azuma Hazuki]

So it's been shown that DDR4-2666 or better is a good idea for gaming. What about compilation? Specifically Gentoo Linux. Would RAM speed/timings be as crucial (hur hur) for compilation as for gaming?

 

[Cerb]

So it's been shown that DDR4-2666 or better is a good idea for gaming.

[citation needed] (and no, 640x480 doesn't count)

What about compilation? Specifically Gentoo Linux. Would RAM speed/timings be as crucial (hur hur) for compilation as for gaming?

I don't know of any significant testing done for that with fast RAM in years, nor can I quickly and easily find any.

 

[Soulkeeper]

I've been wondering the same thing since I compile a lot of my own packages in linux.
phoronix would likely do it if you asked michael to test it.

I suspect the effects are worthwhile. I've seen pretty good compiling speedups in the past from bumping the mem controller speed or tightening the timings.

 

[jhu]

Shouldn't be too hard to test. Go grab the Linux kernel sources and compile everything into it. See how long it takes between different RAM speed settings.

 

[Borealis7]

Assuming you don't already have an SSD, I would imagine an SSD would be much more beneficial to compile times than faster RAM.

 

[qookap]

How about DDR4-2666parameter?
DDR3-1600 CL9 have same time with DDR4 3200 CL18

Check main parameter of DRAM and calculate by formula.
T = (1/f )*parameter value

ex. DDR3-1600 CL9, time is 5.625ns(n=10^-9), lower is better

 

[coercitiv]

So it's been shown that DDR4-2666 or better is a good idea for gaming.

I'd love to see some real testing done on this subject. So far results are controversial at best.