overhead
What's the overhead of a data-less type?
I\'m not wanting to start a flame war on micro-optimisation, but I am curious about something. What\'s the overhead in terms of memory and performance of creating instances of a type that has no intr[详细]
2023-03-16 05:37 分类:问答How expensive it is to load the environment to run a Python script?
I have a background python script that gets ran several thousand times a day. I\'m simply running it with python foo.py. The script itself does some imports (a parsing library and sqlalchemy) and then[详细]
2023-03-14 17:33 分类:问答C++ static_cast runtime overhead
See the code below. a) Does, in this case (simple inheritance, no virtual members), the static cast in B::df() have any overhead (whatsoever)? I found some conflicting answers to similar questions, t[详细]
2023-03-14 14:59 分类:问答Potentially long loop and declaring variables inside
I\'ve recently written a dynamic program that calculates the similarity (modified edit distance) between two sequences of DNA strands (can be lengthy).[详细]
2023-03-10 01:37 分类:问答Does accessing shared memory simultaneously cause a performance hit?
I have a simple multi-threaded app for my multi-core system.This app has a parallel region in which no threads write to a given memory address, but some may开发者_JS百科 read simultaneously.[详细]
2023-03-09 04:33 分类:问答iOS: What is the processing overhead in invoking an Objective-C method?
I am writing some rea开发者_开发知识库l-time audio processing code,which is to be executed in an audio unit\'s render callback.[详细]
2023-02-25 08:11 分类:问答Time measuring overhead in Java
When measuring elapsed time on a low level, I have the choice of using any of these: System.cur开发者_开发百科rentTimeMillis();[详细]
2023-02-24 08:41 分类:问答Is there any penalty/cost of virtual inheritance in C++, when calling non-virtual base method?
Does using virtual inheritance in C++ have a runtime pe开发者_StackOverflow社区nalty in compiled code, when we call a regular function member from its base class? Sample code:[详细]
2023-02-22 00:09 分类:问答Spring annotations configuration looks like overhead
I just faced,that in order to use specific annotations for Spring Security, I should explicitely allow them in my config(applicationContext.xml)[详细]
2023-02-13 08:39 分类:问答How much does getting a list of directories affect php's performance
Very simple question this time, basically I have a group of folders and some of them contain files that I would like to autoload whenever I run my sites script. However I do not want to have to specif[详细]
2023-02-11 08:26 分类:问答