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How do I get Windows to go as fast as Linux for compiling C++?
...
A few ideas:
Disable 8.3 names. This can be a big factor on drives with a large number of files and a relatively small number of folders: fsutil behavior set disable8dot3 1
Use more folders. In my experience, NTFS starts to slow ...
Difference between Big-O and Little-O Notation
...d ≤ 1
not ≤ 0, < 0, or < 1
Here's a table, showing the general idea:
(Note: the table is a good guide but its limit definition should be in terms of the superior limit instead of the normal limit. For example, 3 + (n mod 2) oscillates between 3 and 4 forever. It's in O(1) despite not...
MongoDB Many-to-Many Association
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This doesn't seem like a good idea. If you only have six roles, sure, but what if you had 20000 objects that could be linked to 20000 more objects (in a many-many relationship)? Even the MongoDB docs hint that you should avoid having mutable, huge arrays ...
Git commits are duplicated in the same branch after doing a rebase
...ied after C7). Modifying history of pushed repos is generally a Really Bad Idea™ unless you know what you're doing. In this simple case, the issue could be solved by doing a force push from dev to origin/dev after the rebase and notifying anyone else working off of origin/dev that they're probably...
Why are elementwise additions much faster in separate loops than in a combined loop?
...g mentions cache bank conflicts. (That link is about Sandy Bridge, but the idea should still be applicable to Core 2.)
Region 3:
At this point, the data no longer fits in the L1 cache. So performance is capped by the L1 <-> L2 cache bandwidth.
Region 4:
The performance drop in the single-loop ...
Can someone explain __all__ in Python?
...he definitions. We could use a decorator to solve this problem.
I got the idea for such an export decorator from David Beazley's talk on packaging. This implementation seems to work well in CPython's traditional importer. If you have a special import hook or system, I do not guarantee it, but if yo...
How do servlets work? Instantiation, sessions, shared variables and multithreading
... will work on the requests from all other clients.
Why isn't it a good idea to have one instance per client? Think about this: Will you hire one pizza guy for every order that came? Do that and you'd be out of business in no time.
It comes with a small risk though. Remember: this single guy hol...
How to declare global variables in Android?
...ching your process. At the time Application is being created, you have no idea what your process is being created for. By lazily initializing singletons as needed, you only need to do work that is necessary. For example, if your process is being launched to handle a broadcast about some backgroun...
How to read a (static) file from inside a Python package?
...edError: Can't perform this operation for loaders without 'get_data()' any ideas?
– leoschet
Jun 29 '18 at 0:58
Note t...
public friend swap member function
...ever existed in a standard, but it was widely used before which is why the idea (and compiler support) tended to carry on, but it's technically not there. friend functions are only found by ADL, and if they need to just be free functions with friend access, they need to both be declared as friend wi...