cpu number upgrade

piginacage · n00b Joined: 14 Apr 2008 Posts: 1

Hi all Gentoo gurus!

I've a stable system running Gentoo 1.4
the server has got only one CPU and now it is used for 80 - 90%

I would like to upgrade the system using the SMP with a second CPU.
The questions are:
1) is "intelligent" do this? will I improve the performance from single to double CPUs?

2) Should I rebuild the system or the server packages with emerge?

Really thank you

Sadako · Posted: Mon Apr 14, 2008 8:37 pm Post subject:

Quick answers; 1=Yes, 2=No

While it depends on the usage, in most cases simply having more than one cpu/core can help due multitasking, and seeing as how in your the cpu is almost tasked to it's limit then it would definitely be a good move.

Unless that 80 - 90% is all from one process, of course...

Apart from the kernel, you shouldn't need to rebuild anything, just remember to change the MAKEOPTS setting in make.conf.
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paulbiz · Posted: Mon Apr 14, 2008 8:38 pm Post subject:

Hi,

"It depends"

If the load is coming from multiple processes, then yes I think SMP will definitely help. I don't think you need to emerge anything new, you just have to compile your kernel with SMP support (if it is not already). Everything else should just work automatically.

DaggyStyle · Watchman Joined: 22 Mar 2006 Posts: 5941

what's gentoo 1.4?
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Sadako · Posted: Mon Apr 14, 2008 9:02 pm Post subject: