On Sun, Nov 8, 2015 at 10:35 AM, Reindl Harald <h.reindl(a)thelounge.net> wrote:
Am 08.11.2015 um 09:47 schrieb drago01:
>
> On Sat, Nov 7, 2015 at 9:24 PM, Reindl Harald <h.reindl(a)thelounge.net>
> wrote:
>>
>> Am 07.11.2015 um 20:36 schrieb drago01:
>>>
>>>
>>> On Sat, Nov 7, 2015 at 7:40 PM, Reindl Harald <h.reindl(a)thelounge.net>
>>> wrote:
>>>>
>>>>
>>>> the point is compile a single application with new features won't
gain
>>>> that
>>>> muc 8until you do the same with most libraries used by the software)
>>>> but
>>>> having the whole distribution is a summary with a completly different
>>>> behavior than a single test of software xyz
>>>
>>>
>>>
>>> Uh no you just have to compile the software any libraries used by the
>>> hot paths of the software you are trying to test.
>>
>>
>>
>> for which one?
>> that don't show the impact on a complete distribution anyways
>
>
> There is no such thing as "the complete distribution" ... the flags
> used to compile libreoffice won't affect http or firefox
surely, there is such a thing
on a typical machine is running way more than a single application, you have
(growing) background-noise, currently plasma-desktop eats 25-30% of a core,
X eats some percent and so on
That sounds like a bug. Throwing in some compiler flags won't fix that.
Fixing that requires 1) finding out what it is doing (profile and/or
get stack traces) 2) fix the code.
htop shows 7-10% i7-3770 CPU @ 3.40GHz by doing *nothing* expect
write that
mail and listen to a MP3 file in the background
The mp3 playback is already making use of SIMD instructions.