iperf 2.0.5 移植到android平台

porting iperf 到android到步骤：  使用 native build 到方式，直接贴上自己的BKM

how to porting iperf2.0.5 to board

1.Get source code from:

Then put the source code under folder sourcDIR/externel/ 

2.Add a Android.mk under folder iperf2.0.5

**********************************//begin Android.mk

#Android.mk

LOCAL_PATH := $(call my-dir)

OBJS += compat/error.c 

OBJS += compat/snprintf.c 

OBJS += compat/inet_ntop.c 

OBJS += compat/inet_pton.c 

OBJS += compat/signal.c 

OBJS += compat/Thread.c 

OBJS += compat/string.c 

OBJS += compat/gettimeofday.c 

OBJS += src/gnu_getopt.c

OBJS += src/gnu_getopt_long.c

OBJS += src/tcp_window_size.c

OBJS += src/service.c

OBJS += src/sockets.c

OBJS += src/stdio.c

OBJS += src/ReportCSV.c

OBJS += src/Locale.c

OBJS += src/ReportDefault.c

OBJS += src/Reporter.c

OBJS += src/Extractor.c

OBJS += src/SocketAddr.c

OBJS += compat/delay.cpp

OBJS += src/Server.cpp

OBJS += src/Client.cpp

OBJS += src/List.cpp

OBJS += src/Launch.cpp

OBJS += src/PerfSocket.cpp

OBJS += src/Settings.cpp

OBJS += src/Listener.cpp

OBJS += src/main.cpp

INCLUDES = $(LOCAL_PATH)/include

L_CFLAGS = -DHAVE_CONFIG_H

########################

include $(CLEAR_VARS)

LOCAL_MODULE := iperf

#LOCAL_SHARED_LIBRARIES := libc libcutils libutils libnetutils libstdc++

LOCAL_CFLAGS := $(L_CFLAGS)

LOCAL_SRC_FILES := $(OBJS)

LOCAL_C_INCLUDES := $(INCLUDES)

LOCAL_MODULE_TAGS := eng 

include $(BUILD_EXECUTABLE)

########################

************************************//end Android.mk

3.Get a native build

 sourceDIR$source build/envsetup.sh

 sourceDIR$lunch 9

 sourceDIR$mmm externel/iperf2.0.5

查资料说iperf 主要用来做wifi速率测试的，其实这个用来测试usb 端口到传输速率也很方便

打开usb的rndis选项让pc 同MID设备网络桥接，为了测试方便自己写了两个非常简单到测试脚本：

pc端：

#!/bin/bash

ifconfig usb0 192.168.1.2

iperf -c 192.168.1.1 -f m -t 100

MID端：

#!sbin/ash

echo 1 > /sys/class/usb_composite/rndis/enable

busybox ifconfig usb0 192.168.1.1 up

busybox ifconfig 

iperf -s -f m

测试性能的同时可以使用perf工具进行分析，可以帮助找到造成瓶颈到思路，关于perf使用，再结合vmstat一起记录