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 ×îÐÂÎÄÕ : linux

[ת]°²×°linuxºóµÄÄں˵÷ÓÅ

kernel.shmall = 268435456
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 1200
net.ipv4.ip_local_port_range = 1024 65000
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 300
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.ip_local_port_range = 5000 65000
net.ipv4.tcp_mem = 786432 1048576 1572864
net.core.wmem_max = 873200
net.core.rmem_max = 873200
net.ipv4.tcp_wmem = 8192 436600 873200
net.ipv4.tcp_rmem = 32768 436600 873200
net.core.somaxconn = 256
net.core.netdev_max_backlog = 1000
net.ipv4.tcp_max_syn_backlog = 2048
net.ipv4.tcp_retries2 = 5
net.ipv4.tcp_keepalive_time = 500
net.ipv4.tcp_keepalive_intvl = 30
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.conf.lo.arp_ignore = 0
net.ipv4.conf.lo.arp_announce = 0
net.ipv4.conf.all.arp_ignore = 0 ......

LinuxÏÂÍê³ÉµÄÒ»¸ö×÷Òµ³ÌÐò

Îĵµ´´½¨ÈÕÆÚ£º2010-02-19
£ÛÎļþ1: test06-08.c£Ý
    01    // P174: 2.±à³ÌÌâ (8)°ÑÓÐÐòµÄÁ½¸öÊý×éaºÍbºÏ²¢£¬ÒªÇóºÏ²¢ºóµÄÊý×éÒÀÈ»ÓÐÐò
    02   
    03    // The beginning of C program: test06-08.c.
    04   
    05    // Header files included.
    06    #include <stdio.h>
    07    #include "head06-08.h"
    08   
    09    // Macro definition.
    10    #define MAX_SIZE 100
    11   
    12    // Main function's declaration.
    13    int  main ( void )
    14    {
    15        int &nbs ......

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LinuxÏÂÍê³ÉµÄÒ»¸ö×÷Òµ³ÌÐò

Îĵµ´´½¨ÈÕÆÚ£º2010-02-19
   001    // P174: 2.±à³ÌÌâ (9)½«Êý×éaÖÐÏàÍ¬ÔªËØÖ»±£ÁôµÚÒ»¸ö£¬ÆäÓàɾ³ý¡£
   002   
   003    // The beginning of C program: test06-09.c.
   004   
   005    // Header files included.
   006    #include <stdio.h>
   007    #include "head06-09.h"
   008   
   009    // Macro definition.
   010    #define MAX_SIZE 100
   011   
   012    // Main function's declaration.
   013    int  main ( void )
   014    {
   015        int     i=0,  n=10;
   016        float   lis ......

Linux Çý¶¯ hello

#include <linux/module.h>
MODULE_LICENSE("GPL");
static void hello_init(void);
static void hello_exit(void);
static void hello_init(void)
{
     printk("init");
}
static void hello_exit(void)
{
    printk("exit");
}
.
module_init(hello_init);
module_exit(hello_exit);
makefile:
obj-m := hello.o
PWD := $(shell pwd)
KERNELDIR = /lib/modules/2.6.24-26-generic/build
default:
           make -C $(KENELDIR) M=$(PWD) modules
ubuntu superuser sudo -s -H ......

LinuxÏÂÍê³ÉµÄÒ»¸ö×÷Òµ³ÌÐò

Îĵµ´´½¨ÈÕÆÚ£º2010-02-19
    01    // P174: 2.±à³ÌÌâ (13)²»ÀûÓÃstrcmpº¯Êý£¬×Ô¼º±à³ÌʵÏÖÁ½¸öÈÎÒâ×Ö·û´®µÄ±È½Ï¡£
    02   
    03    // The beginning of C program: test06-13.c.
    04   
    05    // Header files included.
    06    #include <stdio.h>
    07   
    08    // Macro definition.
    09    #define MAX_SIZE 100
    10   
    11    // No.1: Subroutine: int getstr ( char ch[], int size );
    12    int  getstr ( char ch[], int size )
    13    {
    14        int    i=0;
    15    ......
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