measure

measure time in a function in C

人盡茶涼 提交于 2019-12-05 00:08:11
问题 I'm debugging an C application and I'd like to know how much time it spends in a particular function. I could change the source code and add some more code to do the measurement, but it doesn't seem right to me. I'd rather do it with external application, without recompiling every time. I found out it's possible to set up a break point in GDB so I thought, it must be possible to track the time using similar tool by simple procedure: - set breakpoint - when stopped, measure actual time and run

measuring text on scaled canvas

帅比萌擦擦* 提交于 2019-12-04 11:44:27
问题 I've been struggling with text measuring and scaled canvases. When the canvas is unscaled, getTextBounds and measureText deliver accurate results. However, when the canvas is scaled both methods do not deliver results that match the actual size of a printed text. For testing I've created a subclass of View with the following onDraw method: final float scaling = 0.51f; final int fontSize = 50; canvas.scale(scaling, scaling); font = Typeface.create("Arial", Typeface.NORMAL); Paint paint = new

measure() doesnt work properly with dynamic layouts and textView - Android

妖精的绣舞 提交于 2019-12-04 11:16:55
问题 I want to convert a RelativeLaout view into a Bitmap. I've tried another answers and different options without success. My XML View is kind of: ----RelativeLayout -------ImageView -------TextView Every ones have wrap_content measures. As i need several bitmaps of the view, im inflating it this way: LayoutInflater inflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = inflater.inflate(R.layout.localviewlayout, null); ImageView img = (ImageView) v

What triggers a View's measure() to be called

大城市里の小女人 提交于 2019-12-04 09:03:22
问题 In my application I have an infinite loop on one of my View's onMeasure() overrides. Debugging the source code starting from a break point in my onMeasure, I am able to trace myself all the way up the stack trace up to the PhoneWindow$DecorView's measure() (top most class in my View Hierarchy), which gets called by ViewRoot.performTraversals(). Now from here if I keep stepping over, I eventually get the PhoneWindow$DecorView's measure() called again by a message in the Looper.loop() class. I

How can I measure thread waiting time?

邮差的信 提交于 2019-12-04 04:09:16
问题 I couldn't find out how to measure the time that a Thread is waiting locked. I have to determine if a Thread is waiting locked more than 1 second and if so to run another Thread instead. Thanks! 回答1: Try this: long startTime = System.nanoTime(); methodToTime(); long endTime = System.nanoTime(); long duration = endTime - startTime; 回答2: Time it using Sytem.nanoTime(); just before and after the wait. long start = System.nanoTime(); wait(); long time = System.nanoTime() - start; // nanos Or:

Measure time of execution in F#

守給你的承諾、 提交于 2019-12-03 19:44:36
问题 Please post code for displaying time in F#. I noticed that you can measure it from F# interactive with #time directive, but I don't know how to execute program from FSI Thanks 回答1: I would just use the .NET Stopwatch class. let stopWatch = System.Diagnostics.Stopwatch.StartNew() ... stopWatch.Stop() printfn "%f" stopWatch.Elapsed.TotalMilliseconds 回答2: From msdn: By itself, #time toggles whether to display performance information. When it is enabled, F# Interactive measures real time, CPU

Measure/Arrange Of Grids with SharedSizeGroup

天大地大妈咪最大 提交于 2019-12-03 17:04:52
There seems to be a bit of an issue with two grids containing elements specified in a certain way, and the SharedSizeGroup. This question is in response to an earlier question from user D.H. I attempted to answer. Forgive the length, but it helps to demonstrate the problem visually. His original question asked why two grids with a SharedSizeGroup didn't resize to the same height when certain conditions were met (resizing a TextBlock in the right-side grid). I took his example and expanded it, because I suspected that it had to do with the Measure/Arrange cycle. It turns out that it does, in

measure time in a function in C

大城市里の小女人 提交于 2019-12-03 15:20:44
I'm debugging an C application and I'd like to know how much time it spends in a particular function. I could change the source code and add some more code to do the measurement, but it doesn't seem right to me. I'd rather do it with external application, without recompiling every time. I found out it's possible to set up a break point in GDB so I thought, it must be possible to track the time using similar tool by simple procedure: - set breakpoint - when stopped, measure actual time and run the function - when leaving function, measure time again However, i haven't found a way how to do this

measuring text on scaled canvas

家住魔仙堡 提交于 2019-12-03 07:09:38
I've been struggling with text measuring and scaled canvases. When the canvas is unscaled, getTextBounds and measureText deliver accurate results. However, when the canvas is scaled both methods do not deliver results that match the actual size of a printed text. For testing I've created a subclass of View with the following onDraw method: final float scaling = 0.51f; final int fontSize = 50; canvas.scale(scaling, scaling); font = Typeface.create("Arial", Typeface.NORMAL); Paint paint = new Paint(); paint.setColor(0xff4444ff); paint.setTypeface(font); paint.setTextSize(fontSize); paint

measure() doesnt work properly with dynamic layouts and textView - Android

断了今生、忘了曾经 提交于 2019-12-03 06:43:51
I want to convert a RelativeLaout view into a Bitmap. I've tried another answers and different options without success. My XML View is kind of: ----RelativeLayout -------ImageView -------TextView Every ones have wrap_content measures. As i need several bitmaps of the view, im inflating it this way: LayoutInflater inflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = inflater.inflate(R.layout.localviewlayout, null); ImageView img = (ImageView) v.findViewById(R.id.imgPlace); img.setImageBitmap(MyDynamicBitmap); TextView txt1 = (TextView)v.findViewById(R