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Questions tagged [objectpool]

30 questions
30
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3 answers

BlockingCollection(T) performance

For a while at my company we've used a home-grown ObjectPool implementation that provides blocking access to its contents. It's pretty straightforward: a Queue, an object to lock on, and an AutoResetEvent to signal to a "borrowing" thread when…
Dan Tao
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Flyweight vs object pool patterns: When is each useful?

As far as I know the object pool is a creational pattern and the flyweight is a structural pattern, but actually I can´t see very much difference between the two. Could someone please explain to me the difference and when each could be useful in an…
edgar9000
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How do you make your Java application memory efficient?

How do you optimize the heap size usage of an application that has a lot (millions) of long-lived objects? (big cache, loading lots of records from a db) Use the right data type Avoid java.lang.String to represent other data types Avoid…
Boune
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8
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How to avoid heap fragmentation in iOS

Our app creates alot of small objects while running. It mostly comes down to Autoreleased NSString and NSNumber objects. Since the app is designed to run "24/7" in the background heap fragmentation becomes a big issues. What are the techniques to…
pkuhar
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1 answer

scala-way for managing object pools

What is the preferred way in scala for managing object pools? I need to create and delete large scale of objects single-threaded (no need for synchronization) . In c++ I've used array of static objects. What is idiomatic and effective way to cope…
ayvango
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Boost Pool experience requested. Is it useful as allocator with preallocation?

Recently i have been looking for a pool/allocator mechanism. Boost Pool seems to provide the solution, but there is still things, which it have not been able to deduce from the documentation. What need to be allocated Several small classes (~30…
Steffen Villadsen
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3 answers

C++ Lock-Free templated ObjectPool

do they exist ? *added to clarify: is there any usable library that implement lock-free (which is threadsafe and might be implement spinlock or other lightweight synchronization) ObjectPool ( http://en.wikipedia.org/wiki/Object_pool_pattern )…
uray
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Is there any generics version of apache common object pool?

When using apache common pool, it can provide me a good implementation of Java object pooling. However their KeyedPoolableObjectFactory interface is not type safe. Is there any object pool library in Java that can provide a generics interface for us…
raymond.mh.ng
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1 answer

Clarification on the "object pool" pattern?

I was under the impression that an object pool is a design pattern used for managing a group of pre-allocated objects to which a client can request and be returned one of these objects. However, it seems that boost.pool's object_pool class has more…
jwalk
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Is GenericObjectPools borrowObject Method thread safe?

In this question Is GenericObjectPool from commons.apache.org thread safe? It is mentioned that its thread safe . Edited:But im having a situation in my multithreaded application that two threads are getting the same object from the pool at…
Bijesh CHandran
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When to return an object back to its pool

I want to use an object-pool in my C# application, and I know that there isn't any reference count in C#. If the same object can be passed to several threads, how can I know when there are no more references to the object so that I can return it to…
gerstla
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Java - Valid Object Pool with fixed number of Objects to be pooled and use wait-notify

I am trying to implement Object Pool which has fixed number of Objects to be available for pool and using wait if pool if empty and notify when a thread releases an object. I am able to achieve the above required functionality using below program. I…
springcloudlearner
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How can I prevent construction with Object Pool

I want to use the Object Pool design pattern for my library, so that the user cannot create more than a predefined number of objects. How can I force the user to use the Pool class for acquiring an instance, instead of constructor of the resource? I…
randomVariable
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Pointer comparison issue during implementing of "Small-Object Allocator" from Modern C++ design

Memory deallocation is more problematic, because at deallocation time there's a piece of information missing—all we have is a pointer to deallocate, and we don't know to what Chunk that pointer belongs. We can walk through chunks_ and check…
felix
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Objectpool vs. immutable Objects

Say you are working with a simple class and object creation is not heavy: class Simple { public final int data1; public final float data2; ... } You have to continuously put simple-objects into a queue: queue.add(new…
testo
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