The most common problem for network administrators is the network connection problem. Maybe the computer of the company's employees cannot access the Internet, so we can detect the problem through a few simple steps, however, there is a network connection problem that makes us feel at a loss. That is, employees reflect the slow speed of the network.
Because there are many factors that determine the networ
When Internet speed is found to be slow, people usually first test their computer to the network service provider (often referred to as the "last kilometer") network connection speed. In websites that can be used to test broadband speeds,speedtest.net may be the most widely
Early to hear that is C + + running speed than C is a lot slower, so write a small program to test, in the end how slow.1#include 2#include 3#include string.h>4 intMain ()5{clock_t a=clock ();6 inti,j,k;7 Charc[10000]={"ASSDASDXZCZASDXZCZZSDAAAASDXZCZZSDAAAZSDAAAAAAAAAAAAAASDASFSDXZCZZSDAAAAAAAAAAAAAASDASFZVFASDQWEASFASSDXZCZZSDAAAAAAA AAAAAAASDASFZVFASDQ
The loading speed of Web pages is an important indicator for evaluating website quality. The reason is that most users can tolerate a page load time of only a few seconds, if beyond the reach of the visitors they will mercilessly shut down your page, so page loading speed will greatly affect the traffic and access to the site. The following summarizes a few of the most obvious ways to improve the
Test speed with the Linux command lineHttp://www.linuxde.net/2014/01/15561.htmlWhen Internet speed is found to be slow, people usually first test their computer to the network service provider (often referred to as the "last kilometer") network connection
The fastest speed is that non-WCF named pipelines on the local machine have 113 MB/S
The fastest speed for local network machines to transfer files is to use TCP binding of WCF, with a speed of 70 ~ 120 MB/S
Test speed comparison:
Local Data Transfer
When I had nothing to do at night, I suddenly wanted to test the connection speed improvement caused by the ADO. net connection pool. I wrote the following:Code:
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->
1
Using
System;
2
Using
System. configuration;
3
Using
System. Data. sqlclient;
4
Using
System. diagnostics;
5
Speedtest is an open source software for testing network performance, and installing Speedtest under Linux can be used to test the speed of uploading and downloading of network exits to help troubleshoot network failures. Speedtest IntroductionBecause the company several project users to respond to the slow response time, the project itself is not a problem, the
Guide
Speedtest is an open source software for testing network performance, and installing Speedtest under Linux can be used to test the speed of uploading and downloading of network exits to help troubleshoot network failures.
Speedtest IntroductionBecause the company several project users to respond to the slow response time, the project itself
I used the cms of the Empire to get a website and the cms of the Empire to test the speed. the mysql + php website is www.zhaodaoshi.com, the introduction and contact information of the graduate tutor and doctoral tutor feel that the system of the Empire is still quite useful. The problem is that it is too slow to add materials, I plan to analyze the database and
Test method:Stopwatch SW =NewStopwatch (); SW. Start ();stringTMP =""; StringBuilder SB=NewStringBuilder (); for(inti =0; I 10000; i++){ //tmp + = "|" + i;Sb. Append ("|"); Sb. Append (i.ToString ()); //tmp = string. Format ("{0}{1}{2}", tmp, "|", i);}SW. Stop (); Console.WriteLine (sb.) ToString ()); Console.WriteLine (SW. Elapsedmilliseconds); Console.read ();View CodeCreate a For loop of 10,000 times, add the number of I and divide it by |Dif
Usually we need to optimize the function, the general practice is to get the time at the beginning, the end of the time to get a second, two times to subtract time to the time to spend. And the function runs fast, basically is the millisecond level.
The function given below is intended for this purpose.
Time to timestamp (milliseconds)
function Time2stamp () {
var d = new Date ();
Return Date.parse (d) +d.getmilliseconds ();
}
Usage:
var T1 = Time2stamp ();
Compares the
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