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mmap() vs. reading blocks
...rking on a program that will be processing files that could potentially be 100GB or more in size. The files contain sets of variable length records. I've got a first implementation up and running and am now looking towards improving performance, particularly at doing I/O more efficiently since the i...
Are nested try/except blocks in python a good programming practice?
...case first finally is touched BUT skipped too.
def a(z):
try:
100/z
except ZeroDivisionError:
try:
print('x')
finally:
return 42
finally:
return 1
In [1]: a(0)
x
Out[1]: 1
...
How to calculate a time difference in C++
...
I tried this on Mac 10.7 . my app executes a 100 mb file in 15 seconds, but the diff time is reporting 61 seconds. Not much use. I think time() is probably better.
– Miek
Sep 23 '13 at 22:33
...
optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
...:foo mapped to nil, then fetch it will return nil. That is, at least on my v1.9.3. I don't remember how 1.8 behaved.
– quetzalcoatl
Aug 14 '13 at 19:14
...
System.BadImageFormatException: Could not load file or assembly (from installutil.exe)
...\installutil.exe
will not work (substitute in other framework versions: v1.1.4322 (32-bit only, so this issue doesn't arise) and v4.0.30319 as desired in the above).
Obviously, as covered in the other answer, one will also need the .NET version number of the installutil you are running to be >...
Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞 ...
...同时进行。非阻塞接收的使用虽着信息较早地在接收缓存位置被提供，也可 以避免系统缓存和存储器到存储器拷贝。
非阻塞发送开始调用能使用与阻塞发送一样的四种模式: 标准, 缓存, 同步和准备好模式。这些具有同样的意义...
Is there a decorator to simply cache function return values?
...om Python 3.2 there is a built-in decorator:
@functools.lru_cache(maxsize=100, typed=False)
Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an expensive or I/O bound function is periodically called with the same argument...
How to remove illegal characters from path and filenames?
...
I tested five methods from this question (timed loop of 100,000) and this method is the fastest one. The regular expression took 2nd place, and was 25% slower than this method.
– Brain2000
Jul 15 '16 at 15:19
...
How to set a default entity property value with Hibernate
...olumn(name = "myColumn", nullable = false, columnDefinition = "int default 100")
Notice that the string in columnDefinition is database dependent. Also if you choose this option, you have to use dynamic-insert, so Hibernate doesn't include columns with null values on insert. Otherwise talking abo...
Installing a dependency with Bower from URL and specify version
.../my/repo.git#1.0.0 it works even though the actual tag I pushed was called v1.0.0.
– spinningarrow
Feb 24 '16 at 4:04
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