大约有 13,066 项符合查询结果(耗时:0.0490秒) [XML]

https://stackoverflow.com/ques... 

Is volatile expensive?

After reading The JSR-133 Cookbook for Compiler Writers about the implementation of volatile, especially section "Interactions with Atomic Instructions" I assume that reading a volatile variable without updating it needs a LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad ...
https://stackoverflow.com/ques... 

Long-lasting FB access-token for server to pull FB page info

I'm aware that there are many questions about Facebook access-tokens and the grief they cause, but despite much experimentation and reading many frustratingly vague blog articles (FB and otherwise), I'm still struggling to get a clear answer to my needs. Let me succinctly break down my process so fa...
https://stackoverflow.com/ques... 

Diff output from two programs without temporary files

Say I have too programs a and b that I can run with ./a and ./b . 6 Answers 6 ...
https://stackoverflow.com/ques... 

Releasing memory in Python

I have a few related questions regarding memory usage in the following example. 4 Answers ...
https://stackoverflow.com/ques... 

Microsecond timing in JavaScript

Are there any timing functions in JavaScript with microsecond resolution? 4 Answers 4 ...
https://stackoverflow.com/ques... 

Optimise PostgreSQL for fast testing

... First, always use the latest version of PostgreSQL. Performance improvements are always coming, so you're probably wasting your time if you're tuning an old version. For example, PostgreSQL 9.2 significantly improves the speed of TRUNCATE ...
https://stackoverflow.com/ques... 

Why shouldn't all functions be async by default?

...it pattern of .net 4.5 is paradigm changing. It's almost too good to be true. 4 Answers ...
https://stackoverflow.com/ques... 

Multi-gradient shapes

... I don't think you can do this in XML (at least not in Android), but I've found a good solution posted here that looks like it'd be a great help! ShapeDrawable.ShaderFactory sf = new ShapeDrawable.ShaderFactory() { @Override public S...
https://stackoverflow.com/ques... 

Spring DAO vs Spring ORM vs Spring JDBC

I was going through data access technologies supported by Spring, and I noticed that it mentions multiple options and I am not sure about the difference among them: ...
https://stackoverflow.com/ques... 

How does having a dynamic variable affect performance?

I have a question about the performance of dynamic in C#. I've read dynamic makes the compiler run again, but what does it do? ...