Practical Tips: Linux OS Optimization Methods

How can we optimize your system? The following is a simple and small method, but the optimization and adjustment of a system is far more than that. The performance needs to be adjusted according to actual needs. There is no way to meet all system requirements.

1. Check your gcc version:Note that your gcc version must be later than 3.0.

# Gcc -- version

2. obtain your cpu model:

Cat/proc/cpuinfo

3. Create the make. conf file under/etc/and write different contents according to the cpu model.

◆ I386 (Intel ):

CHOST = \ "i386-pc-linux-gnu \"

CFLAGS = \ "-march = i386-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = i386-O3-pipe-fomit-frame-pointer \"

◆Isung (Intel ):

CHOST = \ "i486-pc-linux-gnu \"

CFLAGS = \ "-march = isung-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = isung-O3-pipe-fomit-frame-pointer \"

◆Pentium 1 (Intel)

CHOST = \ "i586-pc-linux-gnu \"

CFLAGS = \ "-march = pentium-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentium-O3-pipe-fomit-frame-pointer \"

◆Pentium MMX (Intel)

CHOST = \ "i586-pc-linux-gnu \"

CFLAGS = \ "-march = pentium-mmx-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentium-mmx-O3-pipe-fomit-frame-pointer \"

◆Pentium PRO (Intel)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = pentiumpro-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentiumpro-O3-pipe-fomit-frame-pointer \"

◆Pentium II (Intel)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = pentium2-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentium2-O3-pipe-fomit-frame-pointer \"

◆Celon (Mendocino), aka Celeron1 (Intel)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = pentium2-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentium2-O3-pipe-fomit-frame-pointer \"

◆Pentium III (Intel)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = pentium3-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentium3-O3-pipe-fomit-frame-pointer \"

◆Celon (Coppermine) aka Celeron2 (Intel)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = pentium3-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentium3-O3-pipe-fomit-frame-pointer \"

◆Celon (Willamette ?) (Intel)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = pentium4-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentium4-O3-pipe-fomit-frame-pointer \"

◆Pentium 4 (Intel)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = pentium4-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = pentium4-O3-pipe-fomit-frame-pointer \"

◆Eden C3/Ezra ()

CHOST = \ "i586-pc-linux-gnu \"

CFLAGS = \ "-march = i586-m3dnow-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = i586-m3dnow-O3-pipe-fomit-frame-pointer \"

◆K6 (AMD)

CHOST = \ "i586-pc-linux-gnu \"

CFLAGS = \ "-march = k6-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = k6-O3-pipe-fomit-frame-pointer \"

◆AMD (K6-2)

CHOST = \ "i586-pc-linux-gnu \"

CFLAGS = \ "-march = k6-2-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = k6-2-O3-pipe-fomit-frame-pointer \"

◆AMD (K6-3)

CHOST = \ "i586-pc-linux-gnu \"

CFLAGS = \ "-march = k6-3-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = k6-3-O3-pipe-fomit-frame-pointer \"

◆Athlon (AMD)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = athlon-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = athlon-O3-pipe-fomit-frame-pointer \"

◆Athlon-tbird, aka K7 (AMD)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = athlon-tbird-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = athlon-tbird-O3-pipe-fomit-frame-pointer \"

◆Athlon-tbird XP (AMD)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = athlon-xp-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = athlon-xp-O3-pipe-fomit-frame-pointer \"

◆Athlon 4 (AMD)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = athlon-4-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = athlon-4-O3-pipe-fomit-frame-pointer \"

◆Athlon XP (AMD)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = athlon-xp-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = athlon-xp-O3-pipe-fomit-frame-pointer \"

◆Athlon MP (AMD)

CHOST = \ "i686-pc-linux-gnu \"

CFLAGS = \ "-march = athlon-mp-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-march = athlon-mp-O3-pipe-fomit-frame-pointer \"

◆603 (PowerPC)

CHOST = \ "powerpc-unknown-linux-gnu \"

CFLAGS = \ "-O3-pipe-fsigned-char \"

CXXFLAGS = \ "-O3-pipe-fsigned-char \"

◆603e (PowerPC)

CHOST = \ "powerpc-unknown-linux-gnu \"

CFLAGS = \ "-O3-pipe-fsigned-char \"

CXXFLAGS = \ "-O3-pipe-fsigned-char \"

◆604 (PowerPC)

CHOST = \ "powerpc-unknown-linux-gnu \"

CFLAGS = \ "-O3-pipe-fsigned-char \"

CXXFLAGS = \ "-O3-pipe-fsigned-char \"

◆604e (PowerPC)

CHOST = \ "powerpc-unknown-linux-gnu \"

CFLAGS = \ "-O3-pipe-fsigned-char \"

CXXFLAGS = \ "-O3-pipe-fsigned-char \"

◆750 aka as G3 (PowerPC)

CHOST = \ "powerpc-unknown-linux-gnu \"

CFLAGS = \ "-mcpu = 750-O3-pipe-fsigned-char-mpowerpc-gfxopt \"

CXXFLAGS = \ "-mcpu = 750-O3-pipe-fsigned-char-mpowerpc-gfxopt \"

◆7400, aka G4 (PowerPC)

CHOST = \ "powerpc-unknown-linux-gnu \"

CFLAGS = \ "-mcpu = 7400-O2-pipe-fsigned-char-maltivec

-Mabi = altivec-mpowerpc-gfxopt \"

CXXFLAGS = \ "-mcpu = 7400-O2-pipe-fsigned-char-maltivec

-Mabi = altivec-mpowerpc-gfxopt \"

-Fsigned-char-maltivec-mabi = altivec-mpowerpc-gfxopt \"

◆7450, aka G4 second generation (PowerPC)

CHOST = \ "powerpc-unknown-linux-gnu \"

CFLAGS = \ "-mcpu = 7450-O2-pipe-fsigned-char

-Maltivec-mabi = altivec-mpowerpc-gfxopt \"

CXXFLAGS = \ "-mcpu = 7450-O2-pipe-fsigned-char

-Maltivec-mabi = altivec-mpowerpc-gfxopt \"

◆PowerPC (If you don \'t know which one)

CHOST = \ "powerpc-unknown-linux-gnu \"

CFLAGS = \ "-O3-pipe-fsigned-char-mpowerpc-gfxopt \"

CXXFLAGS = \ "-O3-pipe-fsigned-char-mpowerpc-gfxopt \"

◆ISCSI

CHOST = \ "iSCSI-unknown-linux-gnu \"

CFLAGS = \ "-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-O3-pipe-fomit-frame-pointer \"

◆64

CHOST = \ "sparc64-unknown-linux-gnu \"

CFLAGS = \ "-O3-pipe-fomit-frame-pointer \"

CXXFLAGS = \ "-O3-pipe-fomit-frame-pointer \"

After compilation, the program running efficiency will be much higher than before! As long as you have time, you can put your system such as redhat linux 9.0 source code suffix. src. rpm) re-compile all the files once, and you will find that your Redhat Linux system will be much faster than the original one!

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