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

LinuxÏÂÔõÑùÔö¼ÓÐéÄâÄÚ´æ

 1¡¢´ò¿ªÖÕ¶Ë£¬Çл»µ½rootÓû§£¬ÊäÈ룺free -m²é¿´ÄÚ´æ×´Ì¬
[root@lxt lxt]# free -m
             total       used       free     shared    buffers     cached
Mem:           498        357        141          0         27        162
-/+ buffers/cache:        167        331
Swap:         1023          0       1023
2¡¢ÊäÈëdf -B M£¨»òdf -m£©²é¿´¸÷·ÖÇøµ±Ç°Ê¹ÓÃÇé¿ö
[root@lxt lxt]# df -B M
Îļþϵͳ               1M-¿é        ÒÑÓà    ¿ÉÓà ÒÑÓÃ% ¹ÒÔØµã
/dev/mapper/vg_lxt-lv_root
                        12875M     4059M     8162M  34% /
/dev/sda7                 194M       14M      170M   8% /boot
tmpfs                     250M        1M      249M   1% /dev/shm
£¨fdisk -l¿É²é¿´´ÅÅÌ·ÖÇøÇé¿ö£©
3¡¢Ñ¡ÔñÒ»¸ö½Ï´óµÄ·ÖÇø£¬½¨Á¢·ÖÇøÎļþ£º
[root@lxt lxt]# dd if=/dev/zero of=/swapadd bs=1024 co


Ïà¹ØÎĵµ£º

ʵսLinux Bluetooth±à³Ì£¨ËÄ£© L2CAP²ã±à³Ì

£¨L2CAPЭÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPЭÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼­Á¬½Ó¿ØÖƺÍÊÊÅäЭÒé (L2CAP) ΪÉϲãЭÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àЭÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãЭÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......

ʵսLinux Bluetooth±à³Ì(Áù) L2CAP±à³ÌʵÀý

ÀýÒ»£º·¢ËÍSignaling Packet£º
Signaling CommandÊÇ2¸öBluetoothʵÌåÖ®¼äµÄL2CAP²ãÃüÁî´«Êä¡£ËùÒÔµÃSignaling CommandʹÓÃCID 0x0001.
¶à¸öCommand¿ÉÒÔÔÚÒ»¸öC-frame£¨control frame£©Öз¢ËÍ¡£
 Èç¹ûÒªÖ±½Ó·¢ËÍSignaling Command.ÐèÒª½¨Á¢SOCK_RAWÀàÐ͵ÄL2CAPÁ¬½ÓSocket¡£ÕâÑù²ÅÓлú»á×Ô¼ºÌî³äCommand Code£¬Identi ......

Linuxϲ鿴ϵͳÐÅÏ¢µÄ³£ÓÃÃüÁî

ÏÂÃæÕâЩÃüÁîÔÚRedHat & CentOSÏÂʹÓÃÓÐЧ£¬ÆäËûϵͳûÓбȽϹý
²é¿´CPUÐÅÏ¢£¬¿ÉÒÔÏÔʾµ½ºË
Ïêϸ
#cat /proc/cpuinfo
´ÖÂÔ
#grep "model name" /proc/cpuinfo
²é¿´ÄÚ´æ
#grep MemTotal /proc/meminfo
#free
²é¿´ÊÇ32»¹ÊÇ64λ
# ls / 
#Èç¹ûÓÐlib64»òÕâ¸öĿ¼,ÄDzÙ×÷ϵͳ¾ÍÊÇ64λµÄ
#getconf LONG_BIT ......

linux µÄһЩÃüÁî




ϵͳÐÅÏ¢
arch ÏÔʾ»úÆ÷µÄ´¦ÀíÆ÷¼Ü¹¹(1)
uname -m ÏÔʾ»úÆ÷µÄ´¦ÀíÆ÷¼Ü¹¹(2)
uname -r ÏÔʾÕýÔÚʹÓõÄÄں˰汾
dmidecode -q ÏÔʾӲ¼þϵͳ²¿¼þ - (SMBIOS / DMI)
hdparm -i /dev/hda ÂÞÁÐÒ»¸ö´ÅÅ̵ļܹ¹ÌØÐÔ
hdparm -tT /dev/sda ÔÚ´ÅÅÌÉÏÖ´ÐвâÊÔÐÔ¶ÁÈ¡²Ù×÷
cat /proc/cpuinfo ÏÔʾCPU infoµÄ ......

Linux¶ÔI/O¶Ë¿Ú×ÊÔ´µÄ¹ÜÀí

 ÕªÒª
¡¡¡¡±¾ÎÄÖ÷Òª´ÓÄÚºËʵÏֵĽǶȷÖÎöLinux 2.4.0ÄÚºËIO×ÓϵͳÖжÔIO¶Ë¿Ú×ÊÔ´µÄ¹ÜÀíµÄʵÏÖÔ­Àí¡£±¾ÎÄÊÇΪÄÇЩÏëÒªÉîÈë·ÖÎöLinuxµÄIO×ÓϵͳµÄ¶ÁÕߺÍÉ豸Çý¶¯³ÌÐò¿ª·¢ÈËÔ±¶øÐ´µÄ¡£(2002-10-08 14:14:05)
--------------------------------------------------------------------------------
By °¢¿ª
¡¡¡¡Copyrigh ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ