Recent questions tagged concurrency

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When I read the "java concurrency in practice" c03, I was confused by the following program: public class NoVisibility { ... is I'm too lucky? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Concurrent stores seen in a consistent order

The Intel Architectures Software Developer's Manual, Aug. 2012, vol. 3A, sect. 8.2.2: Any two stores are ... that speeds stores. Is that right? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Aggregate root invariant enforcement with application quotas

The application Im working on needs to enforce the following rules (among others): We cannot register a new ... that my previous examples. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Can we create pure functions in Fortran which generate random numbers?

My goal is to write a pure function using random numbers which can be used in a DO CONCURRENT structure. The ... action ( ) end program mwe See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Given two Java threads, stop one thread when one of them finishes

I'm looking for a clean design/solution for this problem: I have two threads, that may run as long as the ... the others ? Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Concurrent Prime Generator

I'm going through the problems on projecteuler.net to learn how to program in Erlang, and I am having the hardest ... :member(X,List) %% end. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - java.util.ConcurrentModificationException in JasperReports

We have a web application deployed to Websphere 6.1.0.19 on Windows. We occasionally see this ... java:1473) Thanks, Tom See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Why lambda inside map is not running?

I am trying to learn concurrency and lambdas in java 8. But my code is not entering lambda block inside map. ... is giving me correct result. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Is there something as "immediate events" in Javascript?

Is the notion/concept of "immediate events" something that exists in Javascript implementations? Background In this ... open to answer comments See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Is there a standard Scala function for running a block with a timeout?

I need to call into a service that may or not return timely results. I'd like to be able to write val result ... the job - like Ruby's timeout? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - how many concurrent requests settings for IIS 8.5

How many concurrent requests can be executed in IIS 8.5? I could not find proper values for how many concurrent ... requests for IIS 8.5. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - count / display the number of active goroutines

I have a queue and a function that does both dequeueing and enqueueing. I want to make sure that the right amount of ... )) //this must be 0 } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - GLSL SpinLock only Mostly Works

I have implemented a depth peeling algorithm using a GLSL spinlock (inspired by this). In the following ... placement of memoryBarrier()? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Partial constructed objects in the Java Memory Model

I came across the following code in an article somewhere on the Internet: public class MyInt { private int x; ... Tutorials is simply not true? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - x86 memory ordering: Loads Reordered with Earlier Stores vs. Intra-Processor Forwarding

I am trying to understand section 8.2 of Intel's System Programming Guide (that's Vol 3 in the PDF). In ... observable effects of 8.2.3.5? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - bad use cases of scala.concurrent.blocking?

With reference to the third point in this accepted answer, are there any cases for which it would be pointless ... executed 'within' a Future? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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620 views

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concurrency - Is there BlockingMap as BlockingQueue in java?

I'd like to have one BlockingMap data structure which is very similar to BlockingQueue. The take method of BlockingQueue ... that I can use ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Are Futures in Scala really functional?

I am reading this blog post that claims Futures are not "functional" since they are just wrappers of side-effectful ... result in this case ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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894 views

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concurrency - Thread.sleep inside Scala actors

Is it correct to use Thread.sleep(5000); inside an actor? Does it actualy make an actor sleep for 5 seconds ... an actor sleep for some seconds? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - AtomicBitSet implementation for java

The standard api does not include an AtomicBitSet implementation. I could roll my own on top of AtomicIntegerArray, ... per flag if possible. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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622 views

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concurrency - Is assigning a pointer atomic in Go?

Is assigning a pointer atomic in Go? Do I need to assign a pointer in a lock? Suppose I just want to assign ... but there is no volatile in Go. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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592 views

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concurrency - Does this basic Java object pool work?

Does the following basic object pool work? I have a more sophisticated one based on the same idea (i.e. ... this.permits.release(); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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685 views

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concurrency - Strategies for concurrent read/writing and reading in SQLite

I have an SQLite database that I am keeping open and writing to in process A. I would like to be able ... aim of concurrent writing and reading? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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585 views

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concurrency - Biased locking in java

I keep reading about how biased locking, using the flag -XX:+UseBiasedLocking, can improve the performance of ... /resources that explains?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - How Can I Effectively 'Max Out' Concurrent HTTP Requests?

I'm currently trying a bit of an experiment with Go. Here's what I'm attempting to do: I've got ... many concurrent HTTP requests as possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - What is the simplest way to lock an object in Django

I want to raise error when a user tries to delete an object when some other users are active in update_object ... Do you have any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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463 views

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concurrency - What Cases Require Synchronized Method Access in Java?

In what cases is it necessary to synchronize access to instance members? I understand that access to static ... advance for your answers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concurrency - Java: tutorials/explanations of jsr166y Phaser

This question was asked two years ago, but the resources it mentions are either not very helpful (IMHO) or ... . Anyone have any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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