hustlijian

#include <stdio.h>    //printf
#include <string.h>   //strncpy
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>   //ifreq
#include <unistd.h>   //close
 
int main()
{
    int fd;

hustlijian

#!/bin/bash
###
### my-script — does one thing well
###
### Usage:
###   my-script <input> <output>
###
### Options:
###   <input>   Input file to read.
###   <output>  Output file to write. Use '-' for stdout.

hustlijian

def FindCorrespondingSourceFile( filename ):
  if IsHeaderFile( filename ):
    basename = os.path.splitext( filename )[ 0 ]
    for extension in SOURCE_EXTENSIONS:
     replacement_file = basename + extension
     if os.path.exists( replacement_file ):
       return replacement_file
     name = os.path.basename(replacement_file)
     upper_file = os.path.normpath(os.path.join(os.path.dirname(replacement_file), "../", name))
     if os.path.exists( upper_file):

hustlijian

while [ "$1" != "" ]; do
    case $1 in
        -s  )   shift  
        SERVER=$1 ;;  
        -d  )   shift
        DATE=$1 ;;
    --paramter|p ) shift
        PARAMETER=$1;;
        -h|help  )   usage # function call
                exit ;;

hustlijian

// curl -X POST -H "Content-Type: application/octet-stream" --data-binary '@filename' http://127.0.0.1:5050/upload
// curl -F "[email protected]"  http://127.0.0.1:5050/upload2
// go run main.go
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"

hustlijian

#!/bin/bash
# 重试运行的命令

echo $@

MAX_REBOOT_TIMES=100  # 最大重启次数

reboot_times=0
while true ; do
    $@

hustlijian

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

hustlijian

#!/usr/bin/python
#
# site: http://outofmemory.cn/code-snippet/35902/python-collect-server-performance-info
# introduction: collect linux server performance info
#
#########################################
# Function:    sample linux performance indices
# Usage:       python sampler.py
# Author:      CMS DEV TEAM
# Company:     Aliyun Inc.

hustlijian

CXXFLAGS=-Wall -g
CC=g++
LDFLAGS=-L/usr/lib
LDLIBS=-lm

all: main

main: main.o expression.o

clean:

hustlijian

CC = g++
CFLAGS = -g -Wall

DIR_BIN = .

INCS_HEAD := .

LIB_PATH := #-L /usr/lib
LIBS := #-lpthread