Linux ÊÍ·ÅÄÚ´æ·½·¨
Linux ÊÍ·ÅÄÚ´æ·½·¨
ÏÈ¿´¿´ÄÚ´æÊ¹ÓÃ×´¿ö
[root@node1 ~]# free -m
total used free shared buffers cached
Mem: 8004 6557 1446 0 163 5630
-/+ buffers/cache: 763 7240
Swap: 1983 0 1983
°ÑÄÚ´æÀïµÄÊý¾ÝÔÝʱдµ½Ó²ÅÌÀï
[root@node1 ~]# sync
ÐÞ¸Ä /proc/sys/vm/drop_cachesÎļþ
[root@node1 ~]# echo 3 > /proc/sys/vm/drop_caches
[root@node1 ~]# cat /proc/sys/vm/drop_caches
ÔÙ¿´ÄÚ´æ
[root@node1 ~]# free -m
total used free shared buffers cached
Mem: 8004 631 7372 0 0 60
-/+ buffers/cache: 570 7433
Swap: 1983 0 1983
Ïà¹ØÎĵµ£º
1. ѧ»áд¼òµ¥µÄmakefile
2. ±àһЩӦÓÃ
³ÌÐò
£¬¿ÉÒÔÓÃmakefileÅÜÆðÀ´
3. ѧ»áдÇý¶¯
µÄmakefile
4. дһ¼òµ¥charÇý¶¯£¬makefile±àÒëͨ¹ý£¬¿ÉÒÔinsmod£¬ lsmod£¬ rmmod. ÔÚÇý¶¯µÄinitº¯ÊýÀï´òÓ¡hello world£¬insmodºóÓ¦¸ÃÄܹ»Í¨¹ýdmesg¿´µ½Êä³ö
¡£
5. дһÍêÕûÇý¶¯£¬ ¼ÓÉÏread£¬ write£¬ ioctl£¬ pollingµÈ¸ ......
À´Ô´linux-2.6.20.21/Documentation/kbuild/makefiles.txt
* obj-y
+= foo.o ±íʾ±àbuild-in£¬obj-m += foo.o±íʾ±à³Émodule.
* kbuild
»á±àÒëËùÓеÄ$(obj-y)Îļþ£¬È»ºóµ÷ÓÃ$(LD) -r°ÑÕâЩÎļþºÏ²¢µ½Ò»¸öbuilt-in.oÎļþÖС£Õâ¸öbuilt-in.oÉÔºó»á±»¸¸¼¶Makefile linkµ½vmlinux
* ÓÃlib-y
:= checksum.o ......
1¡¢ ¹ØÓÚÍøÂç½Ó¿Ú¼°ÅäÖù¤¾ß˵Ã÷£»
ÍøÂç½Ó¿Ú(interface)ÊÇÍøÂçÓ²¼þÉ豸ÔÚ²Ù×÷ϵͳÖеıíʾ·½·¨£¬±ÈÈçÍø¿¨ÔÚLinux²Ù×÷ϵͳÖÐÓà ethX,ÊÇÓÉ0¿ªÊ¼µÄÕýÕûÊý£¬±ÈÈçeth0¡¢eth1...... ethX¡£¶øÆÕͨèºÍADSLµÄ½Ó¿ÚÊÇ pppX£¬±ÈÈçppp0µÈ£»
ÔÚLinux²Ù×÷ϵͳÖÐÅäÖÃÍøÂç½Ó¿Ú£¬Ò»°ãÊÇͨ¹ýÍøÂçÅäÖù¤¾ßʵÏֵ쬵«×îÖÕÄ¿µÄ»¹ÊÇͨ¹ýÍ ......
linuxµÄÎļþ°²×°Â·¾¶
2006Äê07ÔÂ15ÈÕ ÐÇÆÚÁù ÉÏÎç 11:09
Èç¹ûÊDZðÈË·¢²¼µÄ¶þ½øÖưü£¬¿ÉÖ´ÐÐÎļþͨ³£¶¼°²×°µ½ /usr/bin ÏÂÃæ£»Èç¹ûÊÇ×Ô¼º´ÓÔ´´úÂë°²×°µÄ£¬¿ÉÖ´ÐÐÎļþͨ³£¶¼ÔÚ /usr/local/bin ÏÂÃæ£¬³ý·ÇÅäÖÃʱָ¶¨Á˰²×°Î»Öá£
ÀýÈ磺
rpm -ivh xxx1.rpm
¿ÉÖ´ÐÐÎļþͨ³£¶¼°²×°µ½ /usr/bin ÏÂÃæ
./configure (»òÕß ......
»Æ Ïþ³¿
(huangxc@cn.ibm.com
), Èí¼þ¹¤³Ìʦ, IBM
·ë Èñ
(fengrui@cn.ibm.com
), Èí¼þ¹¤³Ìʦ, IBM
2008 Äê 7 ÔÂ 03 ÈÕ
±¾ÎĵÄÄ¿µÄÊÇÏë°ïÖú¶ÁÕßÀíÇå Linux 2.6ÖÐÎļþËøµÄ¸ÅÄîÒÔ¼°
Linux 2.6
¶¼ÌṩÁ˺ÎÖÖÊý¾Ý½á¹¹ÒÔ¼°¹Ø¼üµÄϵͳµ÷ÓÃÀ´ÊµÏÖÎļþËø£¬´Ó¶ø¿ÉÒÔ°ïÖú¶ÁÕ߸üºÃµØÊ¹ÓÃÎļþËøÀ´½â¾ö¶à¸ö½ø³Ì¶ÁÈ¡Í ......