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2 core amd cpu MAKEOPTS=-j2 or j3?
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padoor
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PostPosted: Thu Sep 27, 2012 5:21 pm    Post subject: 2 core amd cpu MAKEOPTS=-j2 or j3? Reply with quote

Code:
--------[ EVEREST Home Edition (c) 2003-2005 Lavalys, Inc. ]------------------------------------------------------------

    Version                                           EVEREST v2.20.405
    Homepage                                          http://www.lavalys.com/
    Report Type                                       Quick Report
    Computer                                          PSR-PC
    Generator                                         PSR
    Operating System                                  Windows 7 Home Premium Home Edition 6.1.7601
    Date                                              2012-09-27
    Time                                              22:43


--------[ CPU ]---------------------------------------------------------------------------------------------------------

    CPU Properties:
      CPU Type                                          Unknown, 1400 MHz
      Instruction Set                                   x86, x86-64, MMX, SSE, SSE2, SSE3
      L1 Code Cache                                     32 KB
      L1 Data Cache                                     32 KB
      L2 Cache                                          512 KB  (Asynchronous)

    Multi CPU:
      CPU #0                                            AMD E1-1200 APU with Radeon(tm) HD Graphics, 1397 MHz
      CPU #1                                            AMD E1-1200 APU with Radeon(tm) HD Graphics, 1397 MHz

    CPU Utilization:
      CPU #1 / Core #1                                  0 %
      CPU #1 / Core #2                                  7 %

--------[ EVEREST Home Edition (c) 2003-2005 Lavalys, Inc. ]------------------------------------------------------------

    Version                                           EVEREST v2.20.405
    Homepage                                          http://www.lavalys.com/
    Report Type                                       Quick Report
    Computer                                          PSR-PC
    Generator                                         PSR
    Operating System                                  Windows 7 Home Premium Home Edition 6.1.7601
    Date                                              2012-09-27
    Time                                              22:44


--------[ Memory ]------------------------------------------------------------------------------------------------------

    Physical Memory:
      Total                                             3681 MB
      Used                                              1742 MB
      Free                                              1939 MB
      Utilization                                       47 %




my laptop toshiba C855D has above shown cpu and mem.
i have installed stage3 i686
would it matter with 64 bit processor cores?
how do i make.conf correctly?
the system works ok with lxde installed.
will it become faster if i install amd64 stage3?
also i am not able to install correct xf86-video-ati
now if display changed to alt F1 sometimes i get blank screen
some guidance required
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Veldrin
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PostPosted: Thu Sep 27, 2012 5:58 pm    Post subject: Reply with quote

Quote:
my laptop toshiba C855D has above shown cpu and mem.

No, it is an interpretation of some windows tool, how the system is configured.
Quote:
i have installed stage3 i686
would it matter with 64 bit processor cores?

You can run 32bit on a 64bit processor.
Quote:
how do i make.conf correctly?

by now you should know, that there is not one single correct solution to that question. what do you need? what is the primary task of the system?
post the your current make.conf.
Quote:
the system works ok with lxde installed.
will it become faster if i install amd64 stage3?

it may or may not. but it would be able to use all (or more) memory.
Quote:
also i am not able to install correct xf86-video-ati
now if display changed to alt F1 sometimes i get blank screen
some guidance required

error message, build.log and emerge --info.


and to answer the initial (topic) question: -j3
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padoor
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PostPosted: Sun Oct 07, 2012 2:03 pm    Post subject: Reply with quote

MAKEOPTS="-j3"
dmesg says it finds 2 cpus
but it does not look like it uses 2 cores for emerge packages. it takes time as single cpu
is there anything more to be done to use the 2 cores of the cpu? like distcc
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krinn
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PostPosted: Sun Oct 07, 2012 2:48 pm    Post subject: Reply with quote

you can also set jobs=2
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aCOSwt
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PostPosted: Sun Oct 07, 2012 4:17 pm    Post subject: Reply with quote

padoor wrote:
MAKEOPTS="-j3"

Optimal setting indeed if you are running a CFSized kernel !

On a side note, isn't the fact that it is the optimal setting for a 2 cores cpu the ultimate proof that...
CFS is... suboptimal ! :lol:
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