measurement

Instrument WebKit to provide FPS information for CSS animations?

我怕爱的太早我们不能终老 提交于 2019-12-08 17:31:33
I am currently trying to evaluate the performance of WebKit's CSS animations on various platforms. I've not been able to find a way to instrument a build of WebKit that will measure the frames-per-second rendered while performing an animation. Does anyone know how this can be done? I decided to ask this same question on the WebKit dev list and got a decent response. I'll re-iterate that here. Basically CSS animations in WebKit could be either rendered using one of 2 paths. The software rendering path, or the hardware path. In the case of the software path, the render loop is based on a timer

Instrument WebKit to provide FPS information for CSS animations?

杀马特。学长 韩版系。学妹 提交于 2019-12-08 03:47:26
问题 I am currently trying to evaluate the performance of WebKit's CSS animations on various platforms. I've not been able to find a way to instrument a build of WebKit that will measure the frames-per-second rendered while performing an animation. Does anyone know how this can be done? 回答1: I decided to ask this same question on the WebKit dev list and got a decent response. I'll re-iterate that here. Basically CSS animations in WebKit could be either rendered using one of 2 paths. The software

Measuring Class Dependencies

坚强是说给别人听的谎言 提交于 2019-12-06 12:44:41
I want to measure dependencies between classes - what's the best approach and tools to use? I'm working in MS .Net Text based information / reports are OK, but I'd prefer something visual. Open source tool would be ideal. This may not help (right now), but it looks like VS 2010 will have a dependency graph feature out of the box. Looks like it will do class, namespace, and assembly dependencies. 来源: https://stackoverflow.com/questions/2376519/measuring-class-dependencies

Tools to measure website size

拟墨画扇 提交于 2019-12-06 04:10:42
问题 Can someone please recommend some tools that would help me measure the size of our website pages? I need to gather the size of the page rendered. We have over 100 pages and so obviously I am looking for a tool that could diagnose an entire domain or folder. I don't want to spend days measuring the pages one at a time. Thank you so much in advance. ac 回答1: Page Speed Insights command-line tool gives you various metrics including CSS size , HTML size and Image size . Install it with: sudo npm

Is it possible to measure bandwidth using ping?

拜拜、爱过 提交于 2019-12-06 04:08:53
Can we find the internet bandwidth from the time it takes to ping a server if yes how is it done No, ping tells you nothing about the bandwidth, it just measures latency. Measuring bandwidth is best done by a dedicated test, i.e. transferring a bunch of bits and measuring how long time it takes. You might want to consider that the bandwidth can vary dramatically with many factors, such as: Direction; A to B might be faster than B to A, or vice versa Time of day; depending on general load level of links involved The exact route taken, which in turn can vary randomly You might be able to make a

What is the best method to gather data about the use of your application?

﹥>﹥吖頭↗ 提交于 2019-12-06 03:40:16
问题 My company releases a small software product for which I've recently been taking over the development side. It is a C# Windows Forms application. One of the things I've noticed is that much of the information about how the software is used is filtered through my superiors and I get the feeling that I'm missing important detail in some of the messages. I realise I'll have to work on the management issues with this situation, however in order to give another view on the problem I've been

Python Tkinter string in a font measures differently than same in Text widgit as string grows

故事扮演 提交于 2019-12-05 21:07:43
The Text Object holding a string (in a specified font) seems to give inconsistent results depending on the length of the string. For example: from Tkinter import * import tkFont root=Tk() t_Font = tkFont.Font(family='Helvetica', size=12, weight='bold') t_text='New.' t_frame = Frame(root, bd=0, height=10, width=t_Font.measure(t_text)) t = Text(master=t_frame, height=1, width=len(t_text), bd=1, font=t_Font, padx=0 ) print '\n\nMeasured:',t_Font.measure(t_text),'Frame req:',t_frame.winfo_reqwidth(),'As Text:',t.winfo_reqwidth() Measured: 38 Frame req: 38 As Text: 38 t_text='New title.' t_frame =

Measuring distance with iPhone camera

蹲街弑〆低调 提交于 2019-12-05 16:09:24
问题 How to implement a way to measure distances in real time (video camera?) on the iPhone, like this app that uses a card to compare the size of the card with the actual distance? Are there any other ways to measure distances? Or how to go about doing this using the card method? What framework should I use? 回答1: Well you do have something for reference, hence the use of the card. Saying that after watching the a video for the app I can't seem it seems too user friendly. So you either need a

Difficulties to measure C/C++ performance

十年热恋 提交于 2019-12-05 15:15:15
问题 I wrote a piece of C code to show a point in a discussion about optimizations and branch prediction. Then I noticed even more diverse outcome than I did expect. My goal was to write it in a language that is common subset between C++ and C, that is standard-compliant for both languages and that is fairly portable. It was tested on different Windows PCs: #include <stdio.h> #include <time.h> /// @return - time difference between start and stop in milliseconds int ms_elapsed( clock_t start, clock

Campaign Measurement with own BroadcastReceiver

僤鯓⒐⒋嵵緔 提交于 2019-12-05 04:13:10
I've an Android app where user has to register. On sending registration, I want to send the parameters from the PlayStore (utm_source, etc.) to know from which campaign user comes from. So the idea was to use a own BroadcastReceiver for INSTALL_REFERRER, where I save parameters to a file. When user registers i will read the file and send the content. So I made receiver: public class CampaignBroadcastReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { String refferer = intent.getExtras().getString("referrer"); try { FileOutputStream fos =