CosmosDB Query Performance

I wrote my latest update, and then got the following error from Stack Overflow: "Body is limited to 30000 characters; you entered 38676." It's fair to say I have been very verbose in documenting my adventures, so I've rewritten what I have here to be more concise. I have stored my (long) original post and updates on pastebin. I don't think many people will read them, bu

CosmosDB查询性能

我写了我的最新更新,然后从堆栈溢出中得到以下错误:“正文限于30000个字符;您输入了38676。” 公平地说,我在记录我的冒险经历时非常冗长,所以我已经改写了我在这里更加简洁的内容。 我已将我的(长)原始文章和更新存储在pastebin中。 我不认为很多人会阅读他们,但我会付出很多努力,所以不会让他们迷失。 我有一个包含100,000个文档的集合,用于学习如何使用CosmosDB以及诸如性能测试等内容。 每个文档都有一个Loca

Performance issues when using C# attributes?

As far as I've understood attributes are generated at compile time (otherwise it would not be possible to load attributes via relflection). Anyhow, are there certain cases where attributes might lead to performance issues at runtime? Anyhow, are there certain cases where attributes might lead to performance issues at runtime? Only if your program is excessively looking for attributes in

使用C#属性时的性能问题?

就我所知,编译时生成的属性(否则不可能通过relflection加载属性)。 无论如何,在某些情况下,属性可能会导致运行时的性能问题? 无论如何,在某些情况下,属性可能会导致运行时的性能问题? 只有当你的程序过度地寻找代码中的属性时才会这样。 属性仅在有东西正在查找时才有用。 如果你用[MyAwsomeAttribute]装饰你的班级,并且没有任何东西正在寻找它,那么就不会有性能差异 。 性能差异取决于您拥有多少属性; 如

Mysterious error running makepri for Windows Universal App's Desktop Bridge

I've been trying to wrap WPF app inside a Windows Universal App, using Desktop Bridge. In order to make the app's taskbar icon unplated, with transparent background, I followed the instructions that can be found in various blogs and MSDN articles/forums, such as this one. The first commands I've been executing are these two: "C:Program Files (x86)Windows Kits10bin10.0.15063.0x64m

运行Windows通用应用程序桌面桥接的makepri的神秘错误

我一直在尝试使用桌面桥包装Windows通用应用程序内的WPF应用程序。 为了使应用程序的任务栏图标不带电,具有透明背景,我按照可在各种博客和MSDN文章/论坛中找到的说明进行操作,例如本文。 我一直执行的第一个命令是这两个: "C:Program Files (x86)Windows Kits10bin10.0.15063.0x64makepri.exe" createconfig /o /cf priconfig.xml /dq en-US "C:Program Files (x86)Windows Kits10bin10.0.15063.0x64makepri.exe" new /o

Integrate Python based TensorFlow into a .NET application

It seems that in order to fully use TensorFlow and associated libraries I need to access it from Python. Utilizing TensorFlow requires building rather complicated graphs which Python helper libraries (eg Keras) automate in sophisticated ways. I don't see a way to do that directly from .NET. See for example the respective GitHub discussion about C# support. My idea is this: The main C# ap

将基于Python的TensorFlow集成到.NET应用程序中

看来,为了完全使用TensorFlow和相关库,我需要从Python访问它。 使用TensorFlow需要构建相当复杂的图形,Python助手库(例如Keras)以复杂的方式自动化。 我没有看到直接从.NET做到这一点的方法。 请参阅有关C#支持的相应GitHub讨论。 我的想法是这样的:主要的C#应用​​程序将调用Python应用程序来访问TensorFlow。 这样大多数代码将保留在C#的土地上。 我可以使用CPython,它支持所有的事情(IronPython不支持)。

Slightly different result from exp function on Mac and Linux

The following C program produces different results on my Mac and on Linux. I'm suprised because I assumed that the implementation of libm is somehow standardized #include<math.h> #include<stdio.h> int main() { double x18=-6.899495205106946e+01; double x19 = exp(-x18); printf("x19 = %.15en", x19); printf("x19 hex = %llxn", *((unsigned long long *)(&x19))); } The

Mac和Linux上的exp函数结果稍有不同

以下C程序在我的Mac和Linux上产生不同的结果。 我很惊讶,因为我认为libm的实现标准化 #include<math.h> #include<stdio.h> int main() { double x18=-6.899495205106946e+01; double x19 = exp(-x18); printf("x19 = %.15en", x19); printf("x19 hex = %llxn", *((unsigned long long *)(&x19))); } Mac上的输出是 x19 = 9.207186811339878e+29 x19 hex = 46273e0149095886 和Linux上 x1

Where are strings more useful than a StringBuilder?

Lot of questions has been already asked about the differences between string and string builder and most of the people suggest that string builder is faster than string. I am curious to know if string builder is too good so why string is there? Moreover, can some body give me an example where string will be more usefull than string builder? It's not a case of which is more useful... A S

字符串比StringBuilder更有用吗?

很多问题已经被问及字符串和字符串生成器之间的差异,大多数人认为字符串生成器比字符串更快。 我很想知道字符串生成器是否太好,为什么字符串在那里? 此外,有些身体可以给我一个例子,其中字符串比字符串生成器更有用吗? 这不是一个更有用的例子... String是一个String - 彼此相邻的一个或多个字符。 如果你想改变一个字符串,它会创建更多的字符串,因为它们是不可变的 。 一个StringBuilder是一个创建字符串的类

Public implementation of ropes in C#?

是否有在C#中的Rope数据结构的公共实现? For what its worth, here is an immutable Java implementation. You could probably convert it to C# in less than an hour. 我没有意识到一个Rope实现(虽然可能有一个!),但是如果你只是在串联之后,StringBuilder才能完成这项工作。 The BigList<T> class from Wintellect Power Collections (a C# data structure library) is somehow similar to rope: http://docs.p

公共实现在C#中的绳索?

是否有在C#中的Rope数据结构的公共实现? 对于它的价值,这里是一个不可变的Java实现。 您可能可以在不到一个小时内将其转换为C#。 我没有意识到一个Rope实现(虽然可能有一个!),但是如果你只是在串联之后,StringBuilder才能完成这项工作。 Wintellect Power Collections(C#数据结构库)中的BigList<T>类在某种程度上类似于rope:http://docs.pushtechnology.com/docs/4.5.7/dotnet/externalclient/html/class_

Is using Random and OrderBy a good shuffle algorithm?

I have read an article about various shuffle algorithms over at Coding Horror. I have seen that somewhere people have done this to shuffle a list: var r = new Random(); var shuffled = ordered.OrderBy(x => r.Next()); Is this a good shuffle algorithm? How does it work exactly? Is it an acceptable way of doing this? It's not a way of shuffling that I like, mostly on the grounds that it

是使用随机和OrderBy一个很好的洗牌算法?

我在Coding Horror上看过一篇关于各种洗牌算法的文章。 我已经看到有人在这个地方打乱了一个清单: var r = new Random(); var shuffled = ordered.OrderBy(x => r.Next()); 这是一个很好的洗牌算法吗? 它是如何工作的? 这是一个可接受的方式吗? 这并不是我喜欢的一种洗牌方式,主要是因为它很容易实现O(n)洗牌时没有理由,因此它是O(n log n)。 问题中的代码“工作”,基本上给每个元素一个随机的(希望是唯一

How do I override GetHashCode() without any numbers as fields?

All of the resources showing how to override Equals(object) and GetHashCode() use numeric fields to implement the GetHashCode() method: Implementing the Equals Method What's the best strategy for Equals and GetHashCode? Why is it important to override GetHashCode when Equals method is overridden? However, in my class, I do not have any numeric fields. It is a node in a tree with a re

如何覆盖GetHashCode()而不将任何数字作为字段?

显示如何覆盖Equals(object)和GetHashCode()所有资源都使用数字字段来实现GetHashCode()方法: 实施等式方法 Equals和GetHashCode的最佳策略是什么? 当Equals方法被覆盖时为什么重写GetHashCode很重要? 但是,在我的班级中,我没有任何数字字段。 它是树中的一个节点,引用它的父节点,子节点和接口作为数据: public class Node { private IInterface myInterface; private Node parent; private List&l

why not just using GetHashCode in Equality?

This question already has an answer here: Using GetHashCode to test equality in Equals override 8 answers Two unequal objects are not guaranteed to have unequal hashcodes (that's called a collision).This is what MSDN says: If two objects compare as equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare as equal, the GetHashCode

为什么不直接在平等中使用GetHashCode?

这个问题在这里已经有了答案: 使用GetHashCode测试Equals中的等式会覆盖8个答案 不保证两个不相等的对象具有不相等的hashcode(这就是所谓的冲突)。这就是MSDN所说的: 如果两个对象的比较相等,则每个对象的GetHashCode方法必须返回相同的值。 但是,如果两个对象的比较结果不相等,则两个对象的GetHashCode方法不必返回不同的值。 这是因为有更多的可能性比hashcodes。 例如,让我们带你的班级。 已经有问题了