Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Linux 0.11°æ ½ø³Ìµ÷¶ÈÎı¾½â˵

    0.11ºËÖнø³ÌµÄµ÷¶ÈÖ÷ÒªÓÉËĸö²¿·ÖÊý×é³É£ºµ÷¶È³õʼ»¯¡¢µ÷¶È¡¢Ë¯Ãß¡¢»½ÐÑ¡£
     Ò»¡¢µ÷¶È³õʼ»¯:sched_init()
     ÎÒÃÇÖªµÀÔÚÄں˳õʼ»¯£¨main£©¹ý³ÌÖУ¬Òª½«ÈÎÎñ0ת»»µ½Óû§Ì¬ÏÂÖ´ÐУ¬Ò²¾ÍÊǽ¨Á¢LinuxÖеĵÚÒ»¸öÓû§³ÌÐò¡£¼ÈÈ»ÈÎÎñ0֮ǰÊÇÔÚÄÚºË̬ÏÂÖ´Ðеģ¬ËùÒÔÓõÄÊÇϵͳµÄldt¡¢ºÍtss£¬ÒªÔÚÓû§Ì¬ÏÂÖ´ÐУ¬¾ÍҪʹÓÃÓû§Ì¬ÏµÄldt¡¢tss£¬ÄÇô£¬µ÷¶È³õʼ»¯µÄÆäÖÐÒ»¸öÈÎÎñ¾ÍÊǽ¨Á¢ÈÎÎñ0µÄldtºÍgdt¡£ÏÂÃæËµÒ»ÏÂsched_init()µÄ¾ßÌ幤×÷¹ý³Ì£º
     1£©ÔÚgdtÖÐÉèÖÃldt¡¢gdt£ºldtºÍgdtµÄ¶¨ÒåÔÚsched.hÖС£
     2£©½«eflagsÖеÄNTÖÃλ£º¼ÇµÃÔÚÇ°Ãæ¹ØÓÚÈÎÎñÇл»µÄ˵Ã÷ÖУ¬ÎÒÌáµ½ÔÚmainµÄÖÐsched_init()Ö®ºó£¬Òªµ÷ÓÃmove_to_user_mode£¨£©ÊµÏÖºËÐÄ̬µ½Óû§Ì¬µÄת»»£¬¶øÔÚmove_to_user_mode£¨£©ÖУ¬×îºóµ÷ÓÃÁËiret£¬Èç¹û½«NTΪ0£¬¾Í²»»áÒýÆð½ø³ÌµÄÇл»ÁË¡£
     3£©¼ÓÔØtssºÍldt£ºÊÖ¶¯¼ÓÔØ½öÕâÒ»´Î£¬ÒÔºó¶¼ÊÇͨ¹ýÈÎÎñµÄÇл»CPU×Ô¶¯¼ÓÔØµÄ¡£ÔÚÕâÀÒòΪÊǵÚÒ»¸öÓû§ÈÎÎñ£¬ËùÒÔÐèÒªÊÖ¶¯ÉèÖá£
     4£©³õʼ»¯8253¶¨Ê±Æ÷¡£
     5£©ÔÚIDTÖÐÉèÖÃʱÖÓµÄÖжÏÃźÍϵͳµ÷ÓõÄÖжÏÃÅ¡£
¶þ¡¢µ÷¶È£ºschedule()
       Õâ¸öº¯ÊýµÄÖ÷Òª¹¤×÷¾ÍÊÇ´ÓËùÓд¦ÔÚ¾ÍÐ÷״̬µÄ½ø³ÌÖÐÑ¡ÔñÏÂÒ»¸öÒªÔËÐеĽø³Ì¡£¾ßÌ幤×÷¹ý³ÌÊÇÕâÑùµÄ£ºËüÊ×Ïȼì²éÔÚ´¦ÔÚ¿ÉÖжÏ˯Ãß״̬ϵĽø³ÌÊÇ·ñ³ýÁË×èÈûÐźÅÒÔÍâ±ðµÄÐźţ¬Èç¹û´æÔÚ£¬Ôò½«ËüÖóɾÍÐ÷״̬¡£È»ºóÑ­»·¼ì²éÈÎÎñÊý×éÖеÄËùÓд¦ÔÚ¾ÍÐ÷״̬µÄÈÎÎñ£¬ÌôÑ¡³öÊ£ÓàÖ´ÐÐʱ¼äÖµ×î´óµÄÒ»¸öÈÎÎñ£¬ÀûÓÃswitch_to()º¯ÊýÇл»µ½¸ÃÈÎÎñ¡£Èç¹û·¢ÏÖËùÓоÍÐ÷½ø³ÌµÄʱ¼äƬ¶¼ÊÇ0£¬Ôò¸ù¾ÝÈÎÎñµÄÓÅÏȼ¶£¬ÖØÐ¼ÆËãÿ¸öÈÎÎñµÄʱ¼äƬ£¬ÔÚÖØÐÂÖ´ÐÐÑ­»·¼ì²éËùÓоÍÐ÷ÈÎÎñµÄÖ´ÐÐÊ£Óàʱ¼ä¡£
ÆäÖУ¬Õâ¸öº¯ÊýµÄºËÐÄÖ®Ò»¾ÍÊÇswitch_to()º¯Êý£¬ËüÄÜʵÏÖÈÎÎñµÄÇл»£¬ËüµÄ¶¨ÒåÔÚsched.hÖУ¬Ö÷ÒªÔ­Àí¾ÍÊÇÀûÓÃÈç¹ûljmpµÄ²Ù×÷ÊýÊÇÈÎÎñÃÅÃèÊö·û¾Í»áÒýÆðÈÎÎñµÄÇл»¡£
     Èý¡¢Ë¯Ãßsleep_on()¡¢interruptible_sleep_on()
      ÔÚ½ÓÊÕÕâ¸öº¯ÊýµÄ¹¤×÷Ô­Àí֮ǰ£¬ÏÈÁ˽âÒ»¸öÊý¾Ý½á¹¹£ºµÈ´ý¶ÓÁС£µÈ´ý¶ÓÁÐÆä
Æäʵ¾ÍÊÇÒ»¸ö½ø³ÌÖ¸ÕëÁ´±í£¬ËùÓÐÓÉÓڵȴýͬһ¸ö×ÊÔ´µÄ˯Ãß½ø³Ì×é³ÉÒ»¸öµÈ´ý¶ÓÁС£Õâ¸öÁ´±íµÄÁ¬½Ó²¢²»ÊÇͨ³£ÒâÒåÉÏ


Ïà¹ØÎĵµ£º

ÔÚlinuxÏÂʵÏÖweb qqµÄ×ÀÃæ»¯


´´½¨×ÀÃæÍ¼±ê
Ŀǰ½«ÍøÂçÓ¦ÓÃÀ©Õ¹µ½×ÀÃæÊÇÒ»¸öÇ÷ÊÆ£¬´æÔÚןܶà½â¾ö·½°¸£¬±¾ÎÄÒÔ Mozilla Prism ΪÀý£¬ÀàËÆµÄ·½·¨Í¬ÑùÊÊÓÃÓÚ Google Chrome ¡£
1. µ½ Mozilla Prism µÄÍøÕ¾ÉÏÏÂÔØ Prism£¬µã»÷ Download Now Ö®ºó»áÌáʾÓÐÁ½ÖÖ£¬Ò»ÖÖÊÇÒÔ Mozilla Firefox À©Õ¹µÄ·½Ê½£¬ÊʺÏÒѾ­°²×°ÓÐ Firefox µÄÅóÓÑ£»Ò»Ö ......

Linuxϵͳµ÷ÓÃÁбí

±¾ÎÄÁгöÁ˴󲿷ֳ£¼ûµÄLinuxϵͳµ÷Ó㬲¢¸½ÓмòÒªÖÐÎÄ˵Ã÷¡£ ÒÔÏÂÊÇLinuxϵͳµ÷ÓõÄÒ»¸öÁÐ±í£¬°üº¬Á˴󲿷ֳ£ÓÃϵͳµ÷ÓúÍÓÉϵͳµ÷ÓÃÅÉÉú³öµÄµÄº¯Êý¡£Õâ¿ÉÄÜÊÇÄãÔÚ»¥ÁªÍøÉÏËùÄÜ¿´µ½µÄΨһһƪÖÐÎÄ×¢Ê͵ÄLinuxϵͳµ÷ÓÃÁÐ±í£¬¼´Ê¹ÊǼòµ¥µÄ×ÖĸÐòÓ¢ÎÄÁÐ±í£¬ÄÜ×öµ½ÕâôÍêȫҲÊǺܺ±¼ûµÄ¡£ °´ÕÕ¹ßÀý£¬Õâ¸öÁбíÒÔman pagesµÚ2½ ......

linux redhat4+oracle10g

ÔÚÐéÄâ»úRed Hat Enterprise Linux 4 update 4Öа²×°oracle 10.2.0.1
1)²é¿´ÏµÍ³ÄÚ´æ
[root@linux4 ~]# grep MemTotal /proc/meminfo
2)²é¿´½»»»Çø´óС
[root@linux4 ~]# grep SwapTotal /proc/meminfo
3)
²é¿´/tmpĿ¼´óС
[root@linux4 ~]# df -m /tmp
4)²é¿´²Ù×÷ϵͳ°æ±¾
[root@linux4 ~]# cat /etc/issue
5)¼ ......

VPSʹÓÃÊÖ¼Ç LinuxÃüÁîÐлù´¡

VPSʹÓÃÊÖ¼Ç-LinuxÃüÁîÐлù´¡
Written by shine
on 2009, April 21, 4:09 PM. Linux
ÕâÀïÎÒ½«ÁгöʹÓÃlinux
vps
¹ý³ÌÖеij£ÓÃÃüÁî£¬ÃæÏòµÄ¶ÔÏóÊǶ®Ò»µãÃüÁîÐÐ
µÄÅóÓÑ£¬Èç¹ûÄãûÓÐÈκÎÃüÁîÐлù´¡£¬½¨ÒéÕÒ±¾LinuxµÄ»ù´¡½Ì³ÌÀ´¿´¿´¡£
ÔÚ½²¾ßÌåµÄÃüÁî֮ǰ£¬ÏȽéÉÜÒ»ÏÂLinuxÃüÁîÐеÄһЩ³£Ê¶£º
Ò»ÌõÃüÁîÒ»°ãµÄ¸ñʽÊÇÕâ ......

LinuxÏÂpython lxmlÄ£¿éµÄ°²×°

ÐèÒªÏȰ²×°libxml2-devel libxslt-develÕâÁ½¸örpm°ü£¬Èç¹ûʹÓ÷ÇrootÓû§°²×°£¬¿ÉÒÔÏÂÔØlibxml2ºÍlibxsltµÄÔ´´úÂë½øÐа²×°¡£ libxml2-devel¡¢libxslt-devel×°ºÃºó£¬½âѹlxmlµÄ°ü£¬Çл»µ½Õâ¸ö°üµÄ·¾¶¡£
¼ÓÈëCFLAGS½øÐбàÒëºÍ°²×°£¬ÔÚshellÏÂÒÀ´ÎÊäÈëÈçÏÂÃüÁ CFLAGS=-I/usr/include/libxml2:/usr/include/libxslt/ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ