measurement

问题 I'm wondering whether there is a programmatic way to obtain a measure of the full bandwidth used when sending data through a TCP stream. Since I cannot seem to know how the network stack would divide the stream into packets, or when it sends a TCP SYN or ACK or many of the things it does in the background for you, I can only get a rough estimate for this. The only solution I can think of is to actually sniff the interface, but I would like to think that the stack can already collect this

问题 In iOS 10, Apple introduced several components for quantifying measurements. For example: let velocity = Measurement(value: 3, unit: UnitSpeed.metersPerSecond) Although verbose, the benefits are that you can convert to any other unit without error prone in-line calculations: // before let velocityMetersPerSecond = 3.0 let velocityKilometersPerHour = velocityMetersPerSecond * 1000 / 60 // after let velocityKilometersPerHour = velocity.converted(to: .kilometersPerHour) While Apple supports many

问题 This post replies very well to the question "How to get Advertising ID in android?"... but not how to use it. I would like to know what is the parameter to be used in the Google Measurement Protocol to transfer that advertising ID the Google endpoint and get demographic insights in my GA dashboards (on https://analytics.google.com/). Do I have to send it with the client id ("cid")? Or, to make it simple, what is the parameter used by the SDK on iOS and Android? 回答1: If anyone is looking for

问题 Right now we just use something like this stopWatch.Start(); try { method(); } finally { stopWatch.Stop(); } Which works fine for synchronous methods, but some are executing asynchronously, so the time is skewed when multiple threads are executing. Is there an equivalent to System.Diagnostics.Stopwatch that will measure only time spend in the current thread? We want to collect data over an extended period of time in our internal beta(alpha?) release, and running under a profiler full time isn

问题 I already set up the pop up window, but i want to center it below the button (View v), that needs to be clicked to open it: public void showPopup(Context c, View v){ int[] location = new int[2]; v.getLocationOnScreen(location); ViewGroup base = (ViewGroup) getView().findViewById(R.id.pup_pattern); LayoutInflater inflater = (LayoutInflater) c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View pupLayout = inflater.inflate(R.layout.linearlayout_popup, base); final PopupWindow pup = new

问题 I'd like to print a string based on a Measurement but limit it to 2 digits. I am using the MeasurementFormatter for this. var beans:Measurement = Measurement(value: 20.22321, unit: UnitMass.milligrams) // "20.22321 mg" let formatter = MeasurementFormatter() formatter.numberFormatter.maximumFractionDigits = 2 let label = formatter.string(from: beans) // 0 lb I expected 20.22 mg as a results, not 0 lb . Where's my mistake? 回答1: You need to set the MeasurementFormatter property unitOption to

问题 My app is supposed to estimate the length (in millimeters) of an object using euro coins as reference. This is a screenshot example: To get the diameter of the photographed coin I first calculate the equation of a the circle passing through those 3 points of the form x^2 + y^2 + ax + by + c = 0 and then I have the diameter by 2 * square_root((a/2)^2 + (b/2)^2 -c) . Finally I can perform the following proportion to get the length of the red pen: /* length_estimated_pen (mm) : distance_green

问题 Are there in the literature some standard scalability measures for distributed systems ? I'm searching in google (and also google scholar) but I came up with only few papers (e.g., https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=862209). In particular, I was wondering if there are some scalability measures for the three axes of the AKF cube or cube of the scalability (http://microservices.io/articles/scalecube.html), which is described in the book The Art of Scalability, by Abbott

问题 Not Answered, Almost Same Question To Explain My Goal: I have an apk URL that could be in a market (eg: Google Play, Bazaar, etc) or could be a direct link to apk file. To Explain My Requirements I'll have to set referral link to broadcast it to app when installed on device. Now we all know that Google Play will broadcast referral (Campaign Attribution) to app, but our native market ( Bazaar ) won't do this. To Explain My Problem Is there anyway to broadcast referral information manually by

问题 I am custom drawing a text box and now I am implementing the part where the user can click on a line and have the cursor move to where he clicked. I know how to get the row of text he clicked on because the character height is constant across all fonts, but not the column, because I'm not sure how to say "get me all the text that can be drawn before this amount of pixels," and because character width is not consistent unless you're using a fixed-width font, which is not a guarantee. So I have