Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
How will i know that my system cand handle make.conf anymore
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Portage & Programming
View previous topic :: View next topic  
Author Message
Bia
n00b
n00b


Joined: 27 May 2011
Posts: 65

PostPosted: Mon Nov 26, 2012 8:15 pm    Post subject: How will i know that my system cand handle make.conf anymore Reply with quote

I have been testing various opts lately and I found out that change from my old make.conf

Code:
EMERGE_DEFAULT_OPTS="--jobs=2 --load-average=2.0 --with-bdeps=y --autounmask-write=y" MAKEOPTS="-j3 -l2 -s"


to

Code:
EMERGE_DEFAULT_OPTS="--jobs=2 --load-average=2.5 --with-bdeps=y --autounmask-write=y" MAKEOPTS="-j4 -l2 -s"


has increased the speed of
Code:
emerge -uDNva world
by 20% at least i would say, but how can i be sure that further increase wont burn my cpu up?

my cpu is AMD athlon 64x 2x 2.61 ghz
Back to top
View user's profile Send private message
NeddySeagoon
Administrator
Administrator


Joined: 05 Jul 2003
Posts: 32112
Location: 56N 3W

PostPosted: Mon Nov 26, 2012 9:43 pm    Post subject: Reply with quote

Bia,

Speed gains are made by utilising CPU idle time, while the CPU waits for something else to happen.

You will find that the speed increases until your get to the point where make jobs begin to dispace each other from the CPU cache, so that the cache content has br be fetched from much lower main memory.
The CPU won't be burned up unless the cooling system is faulty.
Even then, modern CPUs reduce the clock speed to avoid damage when the cooling system is faulty.

If you install and configure lm-sensors, you can monitor your CPU tempreture whike you tune your make.conf..
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Portage & Programming All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum