download-speed | 易学教程

How to programmatically limit the download speed?

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问题 I use the following code to limit the download speed of a file in java: package org; import java.io.IOException; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL; class MainClass { public static void main(String[] args) { download("https://speed.hetzner.de/100MB.bin"); } public static void download(String link) { try { URL url = new URL(link); HttpURLConnection con = (HttpURLConnection) url.openConnection(); con.setConnectTimeout(5000); con.setReadTimeout

How to programmatically limit the download speed?

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How can I find out the download speed of the client from server?

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问题 According to the client's download speed I want to show the video's either in low or high quality. Any Javascript or C# solution is acceptable. Thanks. 回答1: There isn't any way to be sure. You can only measure how fast you can send data to the client. Without any kind of input from the client to indicate how fast it is getting the information, there isn't much you can do. You could redirect the client to a page which uses javascript to download an element in the page which is of known size.

How can I find out the download speed of the client from server?

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According to the client's download speed I want to show the video's either in low or high quality. Any Javascript or C# solution is acceptable. Thanks. There isn't any way to be sure. You can only measure how fast you can send data to the client. Without any kind of input from the client to indicate how fast it is getting the information, there isn't much you can do. You could redirect the client to a page which uses javascript to download an element in the page which is of known size. Then, take the time at the beginning and at the end of the download and redirect the page to a URL

HTTPS vs HTTP speed comparison

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Update 2013-04-25: This is a popular question that is getting more attention than it probably should. In order to stop the spread of misinformation please read the following paragraphs and the accompanying article first: Speed should not be a factor in deciding whether to use HTTPS or HTTP. If you need HTTPS for any part of your site (log-ins, registration, credit cards, etc), you absolutely need HTTPS for all of it , all the time. Please read SSL is not about encryption by Troy Hunt for the reasons why. I'm considered running my entire e-commerce website under https. I decided to run a crude

How to measure download speed and progress using requests?

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问题 I am using requests to download files, but for large files I need to check the size of the file on disk every time because I can't display the progress in percentage and I would also like to know the download speed. How can I go about doing it ? Here's my code : import requests import sys import time import os def downloadFile(url, directory) : localFilename = url.split('/')[-1] r = requests.get(url, stream=True) start = time.clock() f = open(directory + '/' + localFilename, 'wb') for chunk

HTTPS vs HTTP speed comparison

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问题 Update 2013-04-25: This is a popular question that is getting more attention than it probably should. In order to stop the spread of misinformation please read the following paragraphs and the accompanying article first: Speed should not be a factor in deciding whether to use HTTPS or HTTP. If you need HTTPS for any part of your site (log-ins, registration, credit cards, etc), you absolutely need HTTPS for all of it , all the time. Please read SSL is not about encryption by Troy Hunt for the

How to detect internet speed in JavaScript?

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问题 How can I create a JavaScript page that will detect the user’s internet speed and show it on the page? Something like “your internet speed is ??/?? Kb/s” . 回答1: It's possible to some extent but won't be really accurate, the idea is load image with a known file size then in its onload event measure how much time passed until that event was triggered, and divide this time in the image file size. Example can be found here: Calculate speed using javascript Test case applying the fix suggested