timing

How can I time processing of chunk of code using MT template language?

由 纵饮孤独 提交于 2019-12-14 03:01:50
问题 Often when developing a Movable Type template, I come up with multiple ways to generate the same result, and am curious which is more efficient. Or, I simply want to know how long something took, such as generating search results. Is there an easy way to recording processing time or other timing strategies using template tags without requiring external tools? 回答1: Or you could use the debug mode 8 as explained here: http://www.movabletype.org/documentation/developer/plugins/debug-mode.html

why are these alerts not appearing?

由 安稳与你 提交于 2019-12-13 04:45:29
问题 I am currently trying to time alerts to appear 3 seconds after the viewer grants permission of webcam. The alerts are supposed to also have audio with them, as they're supposed to be triggered at the same time. The webcam has a face tracking feature with it, so there is a lot of extra code. So I don't know javascript, so please visuals help a lot more than statements. This is my current code I am working with. <!doctype html> <html> <head> <meta charset="utf-8"> <title>eve_</title> <link rel=

How can I start and stop a timer in different classes?

由 寵の児 提交于 2019-12-13 02:15:20
问题 I want to measure the time from the start of an incoming HTTP request and the application getting to a certain point. Both those points in time are located in different classes. How would I start and stop a timer from these different classes. I don't see a way to use 'named' timers from the MeterRegistry. How would I go about this? 回答1: You can use AOP as below : @Aspect @Component public class ControllerMonitor { protected static final Logger LOGGER = LoggerFactory.getLogger

javascript Call function 10 times with 1 second between

由 孤者浪人 提交于 2019-12-13 00:20:38
问题 How to call a function 10 times like for(x=0; x<10; x++) callfunction(); but with 1 sec between each call? 回答1: You can use setInterval for repeated execution with intervals and then clearInterval after 10 invocations: callfunction(); var callCount = 1; var repeater = setInterval(function () { if (callCount < 10) { callfunction(); callCount += 1; } else { clearInterval(repeater); } }, 1000); Added: But if you don't know how long it takes your callfunction to execute and the accurate timings

How to use clflush?

由 家住魔仙堡 提交于 2019-12-12 19:27:59
问题 I want to measure the time difference between accessing a table entry and accessing another entry after a clflush. Below you will find my attempt, I get almost no penalty for the above two operations. The table is of length 256 with 8 bits in each entry. I suspect my clflush is not working properly. I am compiling with -O3 flag in gcc. #include <stdio.h> #include <stdlib.h> #include <stdint.h> #define ARRAYSIZE(arr) (sizeof(arr)/sizeof(arr[0])) #define REPEAT 10000 unsigned char table[256]=

Time taken for Hadoop job to execute

由 十年热恋 提交于 2019-12-12 19:17:34
问题 Is there an API to figure out how long a Hadoop job took to execute (exactly -> no hacks.)? 回答1: I think the simplest way is to measure time in Your driver class. Is it ok for you? I mean something like this: long start = new Date().getTime(); boolean status = job.waitForCompletion(true); long end = new Date().getTime(); System.out.println("Job took "+(end-start) + "milliseconds"); 来源： https://stackoverflow.com/questions/6860987/time-taken-for-hadoop-job-to-execute

Javascript Timing: How do I execute a function every 5, 7, and 8 seconds?

由 旧城冷巷雨未停 提交于 2019-12-12 13:25:30
问题 Let's say I have a function log() var log = function(i) { console.log('Executing at time: ' + i); } And I want to execute log() on an interval, every x, y, and z seconds? Let's arbitrarily set x, y, and z to 5, 7, and 8. var x = 5; var y = 7; var z = 8; And every x, y, and z seconds I want to call log() : // Every 5 seconds: log(x); // Every 7 seconds: log(y); // Every 8 seconds: log(z); I could use try using three setTimeout() s to run these functions alone. But wait, javascript isn't

Releasing an NSTimer iPhone?

由 做~自己de王妃 提交于 2019-12-12 09:21:05
问题 I have an NSTimer declared in my .h and in the viewDidLoad of the /m I have the code: timer = [NSTimer scheduledTimerWithTimeInterval:kComplexTimer target:self selector:@selector (main) userInfo:nil repeats:YES]; I also have [timer release]; in my dealloc. However when I exit the view and return to it, the timer has not in fact released, it has doubles in speed! How do I solve this & what am I doing wrong??? Thanks 回答1: Nice Answer , but good to check whether the time is nil or not to avoid

Mathematica execution-time bug: symbol names

由 我的梦境 提交于 2019-12-12 08:21:59
问题 There is a strange bug that has been in Mathematica for years, at least since version 5.1, and persisting through version 7. Module[{f, L}, L = f[]; Do[L = f[L, i], {i, 10^4}]] // Timing {0.015, Null} Module[{weirdness, L}, L = weirdness[]; Do[L = weirdness[L, i], {i, 10^4}]] // Timing {2.266, Null} What causes this? Is it a hashing problem? Is it fixed in Version 8? Is there a way to know what symbol names cause a slowdown, other than testing? 回答1: What causes this? Is it a hashing problem?

What is the best way to time how long functions take in C++? [duplicate]

由 你说的曾经没有我的故事 提交于 2019-12-12 07:19:30
问题 This question already has answers here : Measuring execution time of a function in C++ (8 answers) Closed last year . In C# I would fire up the Stopwatch class to do some quick-and-dirty timing of how long certain methods take. What is the equivalent of this in C++? Is there a high precision timer built in? 回答1: I've implemented a timer for situations like this before: I actually ended up with a class with two different implemations, one for Windows and one for POSIX. The reason was that
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