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Why shouldn't all functions be async by default?
...erations are not high latency, so it doesn't make any sense to take the performance hit that mitigates that latency. Rather, a key few of your operations are high latency, and those operations are causing the zombie infestation of async throughout the code.
if performance is the sole problem, s...
#define macro for debug printing in C?
... DEBUG_TEST where I used DEBUG.
If you insist on a string literal for the format string (probably a good idea anyway), you can also introduce things like __FILE__, __LINE__ and __func__ into the output, which can improve the diagnostics:
#define debug_print(fmt, ...) \
do { if (DEBUG) fpri...
What is Ember RunLoop and how does it work?
...order in which these actions (binding, rendering DOM elements, etc) are performed is determined by the Ember.run.queues array described above:
The run loop will start off on the first queue, which is sync. It'll run all of the actions that were scheduled into the sync queue by the Ember.run code. Th...
Why all the Active Record hate? [closed]
...accessing data without primary keys, with things that violate first normal form, where there are lots of stored procedures required to access the data, you are better off using something that is more of just a SQL wrapper. If your database is relatively well structured, ActiveRecord lets you take a...
Using Kafka as a (CQRS) Eventstore. Good idea?
...nsumption, after which it
will be discarded to free up space. Kafka's performance is effectively
constant with respect to data size so retaining lots of data is not a
problem.
So while messages can potentially be retained indefinitely, the expectation is that they will be deleted. This doesn...
“Keep Me Logged In” - the best approach
My web application uses sessions to store information about the user once they've logged in, and to maintain that information as they travel from page to page within the app. In this specific application, I'm storing the user_id , first_name and last_name of the person.
...
How is the fork/join framework better than a thread pool?
...up into small evenly sized chunks in one big bang. Say dealing with a some form of hierarchy without balancing.)
Conclusion: FJ allows more efficient use of hardware threads in an uneven situations, which will be always if you have more than one thread.
...
Where do you store your salt strings?
...lt is from looking at the data. This way an attacker cannot practically perform a brute-force attack to obtain a password that matches the hash, since he doesn't know the hash to begin with and has no way to know which parts of the data are parts of the salt, or parts of the salted-password hash (un...
Floating point vs integer calculations on modern hardware
I am doing some performance critical work in C++, and we are currently using integer calculations for problems that are inherently floating point because "its faster". This causes a whole lot of annoying problems and adds a lot of annoying code.
...
社交应用组件 · App Inventor 2 中文网
...tain a list of lists, where each sub-list contains a status update of the
form (username message).
IsAuthorized()
This event is raised after the program calls Authorize if the authorization was
successful. It is also called after a call to CheckAuthorized if we already have a
valid access tok...