allo speed test

Speedtest is an open-source software for testing network performance, and installing Speedtest under Linux can be used to test the upload and download speeds of network exits and help troubleshoot network failures. Speedtest Introduction Due to the company several project users to visit when the response is slow, the project itself is not a problem, the service and call the interface return information is more normal, guess is the bottleneck

First, test Web page Speed script[[emailprotected] ~]# cat check_url.py #!/usr/bin/python# Coding:utf-8import Stringio,pycurl,sys,os,time class Idctest:def __init__ (self): self.contents = "def body_callback (self,buf): Self.contents = self. Contents + buf def test_gzip (input_url): t = idctest () #gzip_test = File ("Gzip_test.txt", ' w ') c = Pycurl. Curl () c.setopt (Pycurl. Writefunction,t.body_callback)

Using the shell to test the download under Linux, the code is as follows: Copy Code code as follows: #!/bin/bash #date: 20140210 #used for test server download speed R_host= "188.18.28.19" R_dir= "/home/test0208/tmp" r_file= "$r _dir/ddfile2m" L_dir= "/home/yangjuying/tmp" l_file= "$l _dir/ddfile2m" l_log= "$l _dir/182.18.28.19-download.log" e

Link Http://www.eygle.com/unix/Use.Bonnie++.To.Test.IO.speed.htm There are some well-known problems with Bonnie, such as >2g file support. Russell Coker (russell@coker.com.au) developed a new set of code to support >2g files. After getting permission from Tim Bray (tbray@textuality.com), Russell named his software bonnie++, published online, and became popular. The current version has been updated to 1.03a and you can download it at the following address: http://www.coker.com.au/bonnie++/ Y

Speed | Statement program running SPEED test results: 1. The same branching condition is judged: IF is slower than select. Test with the following program: Dim tttt1,ttt2 Session ("II") =0 For Sn=0 to 5 Ttt1=now () For I=0 to 300000 If session ("II") =0 Then Session ("II") =1 Else If session ("II") =1 Then Session ("II

1, first familiar with two special equipment:(1)/dev/null: Recycle Bin, bottomless pit.(2)/dev/zero: produces characters.2. Test disk write capabilityCopy the Code code as follows:Time DD If=/dev/zero of=/testw.dbf bs=4k count=100000Because/dev//zero is a pseudo-device, it produces only a stream of empty characters, it does not produce Io, so the IO is concentrated in the of file, the of file is used only for writing, so this command is equivalent to

Original link: Http://www.eygle.com/unix/Use.Bonnie++.To.Test.IO.speed.htm There are some well-known problems with Bonnie, such as >2g file support. Russell Coker (russell@coker.com.au) developed a new set of code to support >2g files. After getting permission from Tim Bray (tbray@textuality.com), Russell named his software bonnie++, published online, and became popular. The current version has been updated to 1.03a and you can download it at the following address: http://www.coker.com.au/b

The speed at which the session is stored or taken (the access difference is small):Code:for ($i =0; $i $BB = self::get_session (' testsession ');}Memcache (Access difference is not small):Code:$a = ' asdflajsdfoijaf203rfjd09wqe4tj0ahgfiopsadifgh '. Mt_rand (1000,9999);$mem = new Zz_memcache ();for ($i =0; $i $AA = $mem->get (' aaa ');}Cookies:Codefor ($i =0; $i $a =$_cookie[' aaa '];}Conclusion: Cookies are significantly slower than sessions and Memca

For many webmaster or some like research network friends, often on some web site Speed test contrast. The author of this article as a webmaster, through personal experience, teach you how to test the speed of the site. Whether you are a webmaster or a computer enthusiast, I believe this article will be helpful to every

Before long, Sogou high speed browser Chrome12 kernel version of the test, a variety of excellent data display, so that we still remember, not only in the speed of Ascension again, in the function also brings many surprises to the user. Today, the Sogou high-speed browser's kernel is upgraded again, the version directl

sizeHttp_size_upload = C.getinfo (pycurl. Size_upload)#Upload Packet sizeHttp_header_size = C.getinfo (pycurl. Header_size)#HTTP Header SizeHttp_speed_downlaod = C.getinfo (pycurl. Speed_download)#Average Download speedHttp_speed_upload = C.getinfo (pycurl. Speed_upload)#Average upload speedHttp_redirect_time = C.getinfo (pycurl. Redirect_time)#time spent in redirection Print('HTTP response Status:%d'%http_code)Print('DNS resolution Time:%.2f MS'% (Dns_resolve * 1000)) Print('established

View network instant speed under Linux1.sar Command (General)Sar-n DEV 1 1001 represents one second to be counted and displayed once100 representative Statistics 100 timesSAR in Sysstat Package2. Using the NTOP Graphics tool (not used in detail, requires browser assistance)3. Use the Iptraf tool (more useful, the character interface directly use)Can monitor all traffic, IP traffic, by protocol traffic, you can also set filters and so on3.1.yum Install

Test Drive read/write speed tools/materials with/dev/zero and/dev/null ubuntu14.04 Dd Baidu Experience: jingyan.baidu.comMethod/Step 1First we need to understand/dev/null and/dev/zero two files, we open two files respectively,650) this.width=650; "class=" Exp-image-default "alt=" use/dev/zero and/dev/null to test HDD read/write

Use the DD command in Linux to test the read/write speed of USB and SSD hard disks.Disk Drive Speed The disk drive speed is measured by the amount of read/write data per unit of time. The DD command is a simple command line tool that can read and write any data block on the disk and measure the read/write

Command: hdparm-t device name (/dev/sda1) Write speed command: time dd if =/dev/zero of =/tmp/test. dat bs = 1G count = 1 Test disk read/write IO speed Sometimes, during maintenance, we always encounter a problem similar to IO, but it cannot be determined whether it is an I/O bottleneck or a hot disk caused by improper