 对于一个刚安装完毕的linux系统，有如下通用的优化措施。 优化编译器 编辑/etc/profile，增加： For CPU i686 or PentiumPro, Pentium II, Pentium III CFLAGS=’-O9 -funroll-loops -ffast-math -malign-double -mcpu=pentiumpro -march=pentiumpro -fomit-frame-pointer -fno-exceptions’ export CFLAGS For CPU i586 or Pentium CFLAGS=’-O3 -march=pentium -mcpu=pentium -ffast-math -funroll-loops -fomit-frame-pointer -fforce-mem -fforce-addr -malign-double -fno-exceptions’ export CFLAGS For CPU i486 CFLAGS=’-O3 -funroll-all-loops -malign-double -mcpu=i486 -march=i486 -fomit-frame-pointer -fnoexceptions’ export CFLAGS 优化SWAP分区 将SWAP分区置于硬盘的开始部分，能够获得部分的系统性能提升。 优化虚拟内存系统 编辑/etc/sysctl.conf,增加或更改如下： # Improve file system performance vm.bdflush = 100 1200 128 512 15 5000 500 1884 2 # Improve virtual memory performance vm.buffermem = 80 10 60 优化文档系统 编辑/etc/sysctl.conf,增加或更改如下： # Improve the number of open files fs.file-max = 8192 # Improve the number of inodes opened fs.inode-max = 32768 此外，对于有频繁读写的文档系统，能够使用noatime的mount选项，这样，对于文档系统的读，系统不会产生对于文档节点atime信息的更新操作。 优化TCP/IP 编辑/etc/sysctl.conf,增加或更改如下： # Allowed local port range net.ipv4.ip_local_port_range = 32768 61000 # Decrease the time default value for tcp_fin_timeout connection net.ipv4.tcp_fin_timeout = 30 # Decrease the time default value for tcp_keepalive_time connection net.ipv4.tcp_keepalive_time = 1800 # Turn off the tcp_window_scaling net.ipv4.tcp_window_scaling = 0 # Turn off the tcp_sack net.ipv4.tcp_sack = 0 # Turn off the tcp_timestamps net.ipv4.tcp_timestamps = 0 优化IDE磁盘 应用hdparm命令配置IDE磁盘的32位DMA通道，能够极大的提升磁盘IO,某些情况下几乎能够提升到2倍的IO性能。具体使用参见hdparm的manual |
喜欢本文，那就收藏到： |
.text:''):(d.getSelection?d.getSelection():'');void(keyit=window.open('http://my.poco.cn/fav/storeIt.php?t='+escape(d.title)+'&u='+escape(d.location.href)+'&c='+escape(t)+'&img=http://www.h-strong.com/blog/logo.gif','keyit','scrollbars=no,width=475,height=575,status=no,resizable=yes'));keyit.focus(); "添加到POCO网摘"){kind=logo}
Rss Feed
