发布时间：2013-05-15 16:07:41

Linux SNMP OID’s for CPU,Memory and Disk Statistics SNMP stands for Simple Network Management Protocol and consists of three key components: managed devices, agents, and network-management systems (NMSs). A managed device is a node that has an SNMP agent and resides on a managed n.........【阅读全文】

发布时间：2013-02-01 16:05:45

通常，kernel的timer心跳频率是，100,250,1000，也就是时钟中断的最小频率是1ms，那么gettimeofday这种系统函数，是如何获取更精确的时钟呢？usec是从何而来？gettimeofday（）对应的syscall,会调用do_gettimeofday（）；getnstimeofday()--->timekeeping_get_ns()-->clocksource.read();platform初始化时，通过 clocks.........【阅读全文】

发布时间：2012-12-12 14:24:39

点击(此处)折叠或打开#!/bin/bash# Set maximum conntrack table sizeecho 100 > /proc/sys/net/netfilter/nf_conntrack_max# Overflow conntrack tablefor i in `seq 1 254`do  echo "$i "  for j in `seq 1 100`  do    conntrack -I --protonum tcp --timeout 3600 -s 1.1......【阅读全文】

发布时间：2012-12-06 16:38:12

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发布时间：2012-12-05 16:13:40

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