Re: [gentoo-user] Better CPU for compiling with gcc

[Mick]

On Tuesday 10 Nov 2015 19:41:46 Dale wrote:
> Alan McKinnon wrote:
> > On 10/11/2015 21:07, Stanislav Nikolov wrote:
> >> 8GB of RAM are waaay more than I use daily (several firefox tabs, nvim =
> >> 2Gb max), I have a pretty fast SSD too. Even buying 8GB RAM and a brand
> >> new SSD, I have > $450 left. Can I buy a AMD CPU that will get the job
> >> done faster than 6700k and/or cheaper?
> >
> > That changes things. It wasn't obvious you already had RAM & SSD & stuff.
> >
> > I'd first make sure I have a decent PSU - none of that crap puny
> > el-cheapo $300 shit (search list archives for 1000s of posts about dodgy
> > PSUs). Then split the difference between 8G RAM, a good CPU and an
> > excellent motherboard. You will use that extra RAM, and a motherboard
> > that ties all the bits together properly is much more cost-effective
> > than raw CPU grunt alone.
>
> If he needs a guide to at least increase the odds of getting a good P/S,
> this may help.
>
> http://www.jonnyguru.com/modules.php?name=NDReviews&op=Review_Cat&recatnum=
> 13
>
>
> I been reading their reviews for a few years.  They are pretty tough.
> To be honest, if I picked out one that rated 8 on their scale, that
> would likely be a good P/S for me.  You get into the 9's and it should
> be a really good one.  Short of lightening, it would be the last thing
> I'd expect trouble from.  They torture them pretty well.  Should be the
> worst a P/S should ever see, example, air conditioner goes out and its
> really warm that day.   Also, they take them apart so you can see what
> is inside them, good brand of caps for example.  Still, they include the
> quality of the build and parts in their scoring.  If a company skimps on
> that, they deduct points.
>
> Honestly tho, the P/S is a critical part.  If it fails, it can wreak all
> kinds of havoc.  I've seen P/Ss go out and take a mobo, hard drive or
> something else out with it.  After all, pretty much everythign plugs
> into power somehow.
>
> Hope that helps.
>
> Dale
>
> :-)  :-)
>
> P. S.  Makes me want to upgrade my CPU to a 8 core now.  I need a hard
> drive first tho.  ;-)


Yes, a good quality PSU will safeguard your components and your data.  Buy 
something with Japanese capacitors.

BTW, let me correct earlier numbers .... My i7 timings are from a conventional 
emerge of firefox with /var/tmp/portage on a spinning drive.  The laptop does 
not have enough memory to emerge FF on a tmpfs.  :p

The AMD emerge timings was derived on a 2400MHz tmpfs.  So this was somewhat 
an apples and oranges comparison.  Apologies for a bum steer.  I wouldn't be 
surprised if the latest skylake i7s on some Ripjaws DDR4 tmpfs wasn't able to 
emerge it closer to 10 minutes.  That would be quite an achievement compared 
to your current PC.

-- 
Regards,
Mick