Dotaz: apt-build instalace a optimalizace

[Lama Lamovita]

Ahoj. Hodne jsem cetl na internetu kolem apt-buil ze s nim jdou balicky optimalizovat pro muj procesor a tak jsem se chtel do toho pustit ze se treba naucim neco nove ale hned pri instalaci jsem narazil na problem : nevim co presne mam napsat do policek : "Volby, ktere predat gcc" a "Volby, ktere predat make" aby apt-build co nejvic optimalizoval balicky pro muj procesor. Mam procesor sempron 3000+ 32 bit ja tam napsal v obou pripadech athlon-xp ale vubec si nejsem jistej jestli je to spravne.

Za vsechny odpovedi predem dekuji.

Odpovědi

[Sinuhet]

Vas /etc/apt/apt-build.conf by mel vypadat nejak takhle:

build-dir = /var/cache/apt-build/build
repository-dir = /var/cache/apt-build/repository
Olevel = -O2
mcpu = -mcpu=athlon-xp
options = " "
make_options = " "

[Lama Lamovita]

Dekuji moc krat za vasi odpoved. Rad bych se jeste zeptal jestl muzu , proc jste nezadal do options a make_options zadne optimalizacni volby?

[Sinuhet]

Vse v options se preda gcc navic spolu s Olevel a mcpu - je to tam pro pripad nejakych specialnich voleb, v drtive vetsine pripadu postaci jenom ty dve "standardni".

Veci v make_options by se ciste teoreticky meli predavat make, ale alespon v me verzi apt-build se s timhle polem dale vubec nepracuje (a ani moc nechapu uzitek takove volby).

[Lama Lamovita]

Dekuji za objasneni. Kdyz jsem hledadal na netu nejake informace kolem toho nastaveni v /etc/apt/apt-build.conf tak jsem narazil na tyhle : Na strance www.debian-rs.org/sites/www.debian-rs.org/artigos/apt-build-pt-br.html

======================================= grajagan@debian:~$ cat /etc/apt/apt-build.conf

build-dir = /var/cache/apt-build/build

repository-dir = /var/cache/apt-build/repository

Olevel = -O3

march = -march=athlon-xp

mcpu = -mcpu=athlon-xp

options = " athlon-xp" ========================================

a na

http://julien.danjou.info/article-apt-build.html

======================================== [shaddai@patator]~ $ cat /etc/apt/apt-build.conf

build-dir = /var/cache/apt-build/build

repository-dir = /var/cache/apt-build/repository

Olevel = -O3

march = -march=pentium2

mcpu = -mcpu=pentium2

options =

[shaddai@patator]~ $ ========================================

dale na

http://foros.tux.cl/viewtopic.php?p=20121

======================================== root@maxwell:~# cat /etc/apt/apt-build.conf

build-dir = /var/cache/apt-build/build

repository-dir = /var/cache/apt-build/repository

Olevel = -O2

march = -march=pentium3

mcpu = -mcpu=pentium3

options = " "

make_options = " " ========================================

a ve 2 pripadech ze 3 je to presne tak jak jste psal . Jeste jednou dekuji za ochotu.

[Sinuhet]

Coz mi pripomina...

Vsichni maji v apt-build.conf radku march (march = -march=athlon-xp), ale na tu se nebere zretel. Respektive drive bral, ale od verze 0.11.5 (stable vetev a vyssi) uz ne. Pokud chcete gcc predavat i march, musite to nacpat do options (takze prislusny radek bude: options = " -march=athlon-xp").

Od verze apt-buildu 0.12.11 byla taktez zamenena volba mcpu za mtune (kvuli gcc, ktere mtune preferuje nekdy od 3.4). Pokud do kofiguraku u techto novejsich verzi apt-buildu nacpete mcpu, bude tise ignorovano a pravdepodobne se nedockate optimalizace vubec zadne (nicmene jestli tam ma byt mcpu nebo mtune, o to by sem mel postarat postinstalacni skript).

[Lama Lamovita]

Tak jsem to zkousel kompilovat ve verzi 0.11.10 s timhle nastavenim v apt-build.conf :

===============================

build-dir = /var/cache/apt-build/build

repository-dir = /var/cache/apt-build/repository

Olevel = -O2

mcpu = -mcpu=athlon-xp

options = " -march=athlon-xp"

make_options = "

================================

kompilovat to sice kompiluje ale porad jenom na i386

================================

-----> Building memstat <-----

dpkg-buildpackage: source package is memstat

dpkg-buildpackage: source version is 0.4

dpkg-buildpackage: host architecture is i386

-

dpkg-deb: vytvarim balik memstat ../memstat_0.4_i386.deb

================================

zkousel jsem to i s timhle nastavenim :

================================

build-dir = /var/cache/apt-build/build

repository-dir = /var/cache/apt-build/repository

Olevel = -O2

mcpu = -mcpu=athlon-xp

options = " "

make_options = " "

=================================

ale je to porad stejne i386 . Nemuzu prijit na to co vlaste ovplivnuje to "host architecture" a jak nebo kde to muzu zmenit.

[Libor Klepac]

host architecture je i386 od i386 az do pentia buhvi kolik .... jesti chces jinou host architecture, tak musis zmenit procesor na neco ne-x86 ;)

[Libor Klepac]

viz. http://www.debian.org/ports/