how to troubleshoot network latency

In all kinds of data in network media through network protocol (such as TCP/IP) for transmission, if the amount of information is too large to limit, excess network traffic will lead to slow device response, resulting in network latency. Unit: Millisecond (ms) How to defin

Troubleshoot SSH connections waiting a few seconds Peacetime when we connect ssh, often have to wait 5 seconds or longer, to connect, because it is a virtual machine, the host through Vmnet8 and virtual machine is the same network segment, there is no delay problem, that must be virtual machine sshd configuration problem. Annoyed for a long time, suddenly any classmate mentioned sshd_config a parameter co

Problem ScenarioLong time not to write blog, recently moved, re-run the network, found the same router, to the ping here is basically no single digit, so try direct broadband dial, ping value is basically 3MS, but after the connection router has an exception, that is not the operator's problem, In the middle of trying out the various methods on the network does not work, so began the following processingNot

This article introduces a simple network program roundtrip, which is used to measure the network latency between two machines, that is, "roundtrip time/round trip Time/rtt". This article mainly examines the tcp_nodelay of the fixed-length TCP message and the function of the packet. The code for this article is shown in http://code.google.com/p/muduo/source/brows

Muduo network programming example 5: measure the network latency of two machines Chen Shuo (giantchen_at_gmail) Blog.csdn.net/solstice t.sina.com.cn/giantchen This is the fifth article in The muduo network programming example series.Article. Muduo full article list: http://blog.csdn.net/Solstice/category/779646

What is QoS? QoS (Quality of Service), a security mechanism of the network, is a technique used to solve problems such as network latency and congestion. It is necessary for key applications and multimedia applications. When the network overload or congestion, QoS ensures that important traffic is not delayed or discar

. if the message is calculated directly, the latency is-700us. This result must be wrong, because the server and client are not in a clock domain (this is a concept in a digital circuit), and their time is directly reduced without significance. If we have measured that the server is 700 us faster than the client, we can use this data for one correction:-850 + = 150us. This result is more realistic. Of course, in practice, clock offset must pass throug

original articles, reproduced please specify: reproduced from the system technology non-amateur researchThis article link address: qperf measuring network bandwidth and latencyWhen we are doing Web servers, we are usually concerned about the bandwidth and latency of the network. Because many of our protocols are request-reponse protocols,

simlist;}In the Simhelper classprivate static listlistCollections.sort (Siminfolist, New comparator.....In the Phonestatusbar classpublic void Showsimindicator (String businesstype) {if (missimindicatorshowing) {Hidesimindicator ();}Mbusinesstype = Businesstype;Long Simid = Simhelper.getdefaultsim (Mcontext, Businesstype);XLOG.D (TAG, "showsimindicator, show SIM indicator which business is" + Businesstype + "Simid =" +simid+ ".");if (Simid = = Android.provider.Settings.System.DEFAULT_SIM_SETTIN

Resisting network interference is a major problem that needs to be solved in our network. Here we will explain how to solve the latency problem in detail. The latency of all 802.11 Wireless Networks in the city is complex. The city's security department plans to convert thousands of repeated passwords into more powerfu

Processing of network latency in online shooting games (Jinqing's column) Network latency in online games is unavoidable.For example, if a mobile client sends a command to receive confirmation from the server, there will be a latency of Ms,If the client is moved after ms,

Modifying the Registry improves the slow network speed caused by Tcp latency in Windows. TCP is a link-oriented communication protocol. Each sending and receiving action of both parties must be based on the normal communication link. Therefore, TCP provides the default ACK authentication mechanism. The ACK authentication method is related to the operating system. In TCP, data validation is often delayed. Wh

Tags: blog technical description off-line rpm package download RPM PAC Water TransferUse the QPERF command to test network bandwidth and network latency under LinuxIf no command can be installed with Yum, the command is as follows:#yum-y Install QperfIf there is no yum or no network, install the following RPM package i

Ask for help! About network latency! -- Linux Enterprise Application-Linux server application information. For details, refer to the following section. I recently studied network latency. I have learned from some papers that network late