check network throughput linux

} '| sh 1117 how to create multiple X (noclouds)Startx is the first X starting from display: 0.0 by default. Multiple X can be created by passing parameters to xserver:# Startx --: 1.0# Startx --: 2.0...Then switch with Ctrl-Alt-F7/f8. 1118 let a program continue running after logging out (noclouds, Chen Xu)# # DisownOrNohup command 1119 check the screen display information when Linux is started (Chen Xu)R

the packet loss rate during ping. 5. route # operate the route table Route add default gw 192.168.14.100 # add a gateway without modifying the configuration file [But it is better to modify the configuration file] Zerba routing software] 6. traceroute # view the route path Traceroute www.163.com # it lists all the routers and latencies that pass through the host. 7. netstat # monitor the network status Netstat-an # view all connections Netstat-an

, but cannot be modified. You only need to ensure the uniqueness of the MAC address in the network. 4. initial deployment of IPv6The IPv4 technology has played a huge role in the development of the network. However, over time, it becomes increasingly inadequate in terms of network address provision, service quality, and security.

performance and low cost. Many such designs include previous real-time operating system platforms. There are some questions about whether embedded Linux can meet these real-time performance requirements. Many control-level applications focus more on throughput, but do not require hard real-time processing (aside from the previous real-time operation options ). Newer, the

host to send a request to close the connection to the other party(2) When the other party receives a request to close the link, it sends a confirmation packet to receive the request and closes the socket link.(3); Request the host to confirm the packet, send a confirmation packet, tell the other party to send a confirmation packet received, request the host to close his socket connection.8 Socket Programming9. Writing Secure CodeCauses of security problems:A user or administrator lacks security

between sending and receiving information.-I: the network interface uses the specified network interface to send data packets.-L: the data packet that is sent before the request information is sent.-N: only numbers are output.-P: set the pattern for filling data packets.-Q: The command execution process is not displayed, except for information related to the beginning and end.-R: Ignore common Routing tabl

1. Network Interfaces and configuration tools; Network interfaces are the representation of network hardware devices in the operating system. For example, if the network adapter uses ethx in the Linux operating system, it is a positive integer starting from 0, for example,

Linux basics: Linux network basic configurations Ethernet connections in Linux, Ethernet interfaces are named eth0, eth1, etc, 0, 1 indicates the NIC number. you can use the lspci command to view the NIC hardware information (if it is a usb Nic, you may need to use the lsusb command) ifconfig command (interf...

Everyone knows the compiling steps of various network server programs and knows that there are two types of network servers: cyclic services and concurrent services. Here is a summary of the source code.First of all, the process of Loop Network Server programming is as follows: This type of server model is a typical Loop Service. Without the multi-process/thread

Linux bond network configuration when the linux system has multiple independent NICs, and want to make full use of these NICs, at the same time provide a unified network address, so as to increase the network throughput, at the sa

hardwareLinux can use any network hardware with a driver. The Linux driver is compiled into the kernel either independently or in the form of a load module. The Linux kernel supports many popular NICs by default. When selecting network hardware, it is best to always use the devices listed in "hardware compatibility li

Linux system-network basic configuration and troubleshooting, and linux basic configuration troubleshooting In linux, there are three types of network configuration: one is to directly implement the configuration file using command lines on the terminal, and the other is to

receiving Flowchart After the network device receives the data, the DMA module searches for the received BD table, extracts the idle BD table, automatically saves the data to the cache of the BD, and changes the BD to the ready state, and trigger the interrupt at the same time (this step is optional ). The processor can check the status of the received BD table by means of interruption or polli

(times per request):Calculation formula: The amount of time spent processing all requests (total number of requests/concurrent users), i.e.:Time per request=time taken for tests/(complete requests/concurrency level)3. Average Server request Wait time (Request:across all concurrent requests):Calculation formula: The amount of time/Total requests processed to complete all requests, namely:Time taken For/testscomplete requestsAs you can see, it is the reciprocal of the