Linus & Core i7

[grimpr]

Ενα απλό copy paste και τίποτα παραπάνω, τα σχόλια δικά σας.

 

http://www.realworldtech.com/forums/index.cfm?action=detail&id=94178&threadid=94137&roomid=2

 

Name: Linus Torvalds ([email protected]) 11/4/08

 

Leland C. Scott ([email protected]) on 11/4/08 wrote:

>

>Anybody install Linux on one of these yet? If so how well

>did it work?

 

I've been using a Nehalem for the last few months as my

main machine. I'm very happy with it, both for single-

threaded performance (most of what I do, notably just

about all of my SCM workflow), and for doing full kernel

compiles in 16 seconds by utilizing four cores and HT.

 

According to DMI, my board is an Intel DX58SO.

 

Performance is definitely fine. I could have tweaked it a

bit more (for example: I've populated all four DIMM's, for

best performance I should have done just three), but I

really don't have any complaints.

 

That said:

 

- I'd have actually preferred Intel's integrated graphics,

rather than external ones. The chipset selection is

pretty limited right now. I don't think there are any

IGP boards yet.

 

- I don't really need quad-core. Yes, it allows me to

compile my kernel in 16 seconds, but if I end up going

to disk, it takes about a minute. IOW, the only case

where I personally really use quad cores, I really could

have easily done with just two, and a faster disk. I

would have lost some for the best case, but come ahead

on average. Two cores would already be plenty fast.

 

- I like my machines small and silent. It's one of the

reasons I'll go for an IGP any day. Intel development

boxes don't tend to be "small and silent", and the

fans in the power supply/graphics card/CPU aren't all

that optimal.

 

But I really haven't found anything to complain about in

the CPU itself. All my complaints are related to the fact

that it's new and only comes in a few SKU and with just

a few system options.

 

But the core really does work really well. The locking

costs are down by about 40% (I did the exact cycle

benchmarking when I got the machine and compared it side

by side to my previous woodcrest one, and I've forgotten

the exact numbers). The new cache hierarchy seems to work

very well indeed. The integrated memory controllers give

great bandwidth, even if I have not tried to optimize it.

 

IOW, looks like a winner to me.

 

Linus

[parsifal]

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