[gentoo-user] Re: Puzzled with duration of chromium emerge under profile 17.0

[Grant Edwards]

On 2017-12-06, Mick <michaelkintzios@×××××.com> wrote:
> On Wednesday, 6 December 2017 21:01:25 GMT Grant Edwards wrote:
>> On 2017-12-06, Mick <michaelkintzios@×××××.com> wrote:
>> > I discovered that building Chromium with gcc-6.4.0 is taking an
>> > inordinately>
>> > longer time on a laptop with 1st gen i7 and 4G of RAM, e.g.:
> [snip ...]
>
>> Did the CPU throttling stuff somehow get broken when you updated to
>> gcc-6.4.0?
[...]
> Hmm ... I have not changed anything related to CPU throttling I can remember.
> Which reminds me, perhaps I should 'make clean' my kernel now that I have
> switched to gcc-6.4.0?

Shouldn't need to.  I think my throttling got broken when I updated
kernels.

> i7z shows turbo mode kicks in too and hyperthreading is on (attached).  Under
> turbo it jumps up to 2.8GHz.  So cpu throttling is probably not the cause of
> my problem, unless it throttles more now than it used to do before?  :-/

If throttling were broken it would be pretty obvious: when you do 'cat
/proc/cpuinfo' in the middle of an emerge, it would show 500MHz (or
whatever) as the core frequency.  [It still took me half a day to
find out that's what was wrong.]

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