
What is the difference between concurrency and parallelism?
Concurrency is an aspect of the problem domain —your code needs to handle multiple simultaneous (or near simultaneous) events. Parallelism, by contrast, is an aspect of the solution domain —you want …
What is the difference between concurrency, parallelism and ...
Concurrency is having two tasks run in parallel on separate threads. However, asynchronous methods run in parallel but on the same 1 thread. How is this achieved? Also, what about parallelism? Wha...
database - Optimistic vs. Pessimistic locking - Stack Overflow
I understand the differences between optimistic and pessimistic locking. Now, could someone explain to me when I would use either one in general? And does the answer to this question change depend...
Performance results differ between run_in_threadpool () and run_in ...
Mar 28, 2024 · 3 starlette.concurrency.run_in_threadpool uses anyio.to_thread.run_sync() under the hood. By default, the concurrency there is limited to 40, so 50 concurrent requests will starve the …
Can I limit concurrent invocations of an AWS Lambda?
We can't reduce the concurrency to 1, but there is a way we can restrict the maximum concurrency to 2 and make sure lambda won't scale more than that. To limit the number of concurrent invocations of …
language agnostic - What is the difference between concurrent ...
Concurrency and Parallelism Source In a multithreaded process on a single processor, the processor can switch execution resources between threads, resulting in concurrent execution.
What are common concurrency pitfalls? - Stack Overflow
I'm looking into educating our team on concurrency. What are the most common pitfalls developers fall into surrounding concurrency. For instance, in .Net the keyword static opens the door to a lot of
How to deal with concurrent updates in databases?
create table credits ( int id, int creds, int user_id ); The intent is to store some kind of credits for a user, e.g. something like stackoverflow's reputation. How to deal with concurrent updates to that table ? A …
Optimistic concurrency: IsConcurrencyToken and RowVersion
The first statement doesn't update anything, but it increments the rowversion, and it will throw a concurrency exception if the rowversion was changed in-between.
Concurrency and Multithreading - Stack Overflow
Jan 3, 2010 · In languages that are not designed for concurrency, you must rely upon low-level system calls and manage a lot of things yourself. In contrast, a programming language designed for …