大约有 30,000 项符合查询结果（耗时：0.0699秒） [XML]
What exactly are “spin-locks”?
...ore machines thus better performance.
EDIT: A question came up: "Does that mean I should use spinlocks wherever possible?" and I'll try to answer it:
As I mentioned, Spinlocks are only useful in places where anticipated waiting time is shorter than a quantum (read: milliseconds) and preemption doesn...
Multiline strings in JSON
... control characters. As an additional example to make it more clear, consider that "\\" is an escape sequence for backslash, as opposed to a literal backslash. The JSON grammar explicitly excludes control characters (cf. the "char" definition), and instead provides for their representation via es...
What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
What does ArrayIndexOutOfBoundsException mean and how do I get rid of it?
25 Answers
...
Django - filtering on foreign key properties
...
student_user = User.objects.get(id=user_id)
available_subjects = Subject.objects.exclude(subject_grade__student__user=student_user) # My ans
enrolled_subjects = SubjectGrade.objects.filter(student__user=student_user)
context.update({'available_subjects': av...
Thread vs ThreadPool
...threads executing is smaller than the number of processors.". So does that mean that that when dividing work up among cores that foreground threads get priority?
– cdiggins
Feb 3 '10 at 12:44
...
Using regular expressions to parse HTML: why not?
...gular languages are also context-free, so context-free doesn't necessarily mean not regular). The only thing you can do with regexps on HTML is heuristics but that will not work on every condition. It should be possible to present a HTML file that will be matched wrongly by any regular expression.
...
Downloading jQuery UI CSS from Google's CDN
... Note that these CSS scripts are not currently compressed/minimised, meaning that you could offer reduced size versions (by about 26% according to Google's PageSpeed plugin for Firefox) from your own domain, which might be faster for your users if your connection is decent and they don't alrea...
Can't create handler inside thread that has not called Looper.prepare()
What does the following exception mean; how can I fix it?
27 Answers
27
...
Intellij IDEA Java classes not auto compiling on save
...mall change in one single class. Even the "Compile 'StartController.java'" meaning one class only takes 3-4 seconds. Eclipse does this in less than 100 milliseconds. I will test the eclipse mode plugin again and decide what to go with..
– mmm
Jan 5 '14 at 14:56...
What are bitwise shift (bit-shift) operators and how do they work?
... The answer is totally incorrect in the context of C language. There's no meaningful division into "arithmetic" and "logical" shifts in C. In C the shifts work as expected on unsigned values and on positive signed values - they just shift bits. On negative values, right-shift is implementation defi...