Re: [tlug] silicon cash eater

[kts <kts@example.com>]

On Jun 25, 2017, at 06:17, Kalin KOZHUHAROV <me.kalin@example.com> wrote:

On Sat, Jun 24, 2017 at 3:07 AM, kts <kts@example.com> wrote:

It is interesting that my first response to computer issues is usually:

BUY MORE HARDWARE

when the solution can often be found in software settings…. that maxcpus=x
line of 9 characters possibly saved me a few ¥10,000 bills…

I really doubt that statement.
Please check with a power meter when you leave use normally your
machine over the course of few days with maxcpus=x and without.
I was happy with https://www.amazon.co.jp/dp/B01DX4JNXE , now a
useless paperweight in Germany (only 100V supported).

If your machine is idle, the CPU is really just a few watts.

Kalin.

#Warning: This discussion is moving non-linux-related for the time-impaired...

Ok. A quick check here suggest "system idle load" for the 1090t chip to be 122watts idle, 201watts full load. This is a 2010-era 45nm hex-core chip with a TDP of 125w. Video card is a base level passive cooling type.

http://www.anandtech.com/show/3674/amds-sixcore-phenom-ii-x6-1090t-1055t-reviewed/10

https://en.wikipedia.org/wiki/List_of_AMD_Phenom_microprocessors#.22Thuban.22_.28E0.2C_45_nm.2C_Hexa-core.29

If the difference is about 80watts and we say it is all CPU under load, then the idle usage 125TDP-80=~45w

The I7 4790K “@22nm and 4.0ghz with 4 cores, TDP of 88w. 

https://en.wikipedia.org/wiki/List_of_Intel_Core_i7_microprocessors#.22Haswell-DT.22_.28quad-core.2C_22_nm.29

Assume the system load is maybe another 70watts or so?

Anyway, the Intel machine also has a penalty of mongo video card pulling full-bore 225w if I let those Nvidia processors rip. 

More than likely I should shut down the WinTel 4790K except when using it rather than idling. I tend to do more daily use on the MacBook 

anyway.

Newer low-power Intel chips @22nm have a TDP of 35w, significantly better than my old space heater…

at the price of new CPU, motherboard, and full complement of memory…  my hardware itch.. ;)

balanced against my loathing to scrap a fully functioning 6-core with expensive CPU cooler and maxed 16gb RAM to sell for peanuts at the second-hand shops.