How to associate values to keys without blocking GC

How to associate values to keys without blocking GC - Why can't you remove the value → key mapping (or at least use Use a WeakHashMap to map keys to values (so values do not get GC'd,

ConditionalWeakTable causes a memory leak if one of their values - In a blocking gen2 GC, GC does not participate in determining object's . If an object that is being used as the key of a WeakMap key/value pair

WiscKey: Separating Keys from Values in SSD-conscious - USENIX Association . ple key sorting and garbage collection in WiscKey while. LevelDB bundles cause values are not stored in sorted order anymore. WiscKey . pair, LevelDB needs to read a 16-KB index block, a 4-.

Hashmap vs WeakHashMap in Java - In HashMap, we have a key and a value pair . Even though the object is specified as key in hashmap, it does not have any reference and it is not eligible for garbage collection if it is associated with HashMap i.e. HashMap dominates over Garbage Collector. . first_page Instance Initialization Block (IIB) in Java. Next.

17 – Weak Tables - Unlike some other collectors, Lua's garbage collector has no problems with cycles. to assign nil to these positions so that they do not lock an otherwise free object. Tables have keys and values and both may contain any kind of object. creates second key a[key] = 2 collectgarbage() -- forces a garbage collection cycle

Lua 5.1 Reference Manual - This type corresponds to a block of raw memory and has no .. If so, the value associated with that key (the metamethod) controls how Lua will . Finalizers allow you to coordinate Lua's garbage collection with external

asort - Manual - asort — Sort an array and maintain index association This function passes the entire child element even if it is not a string. Note that the parameters default to sort ascending on both keys and values, but allow granular control over each. .. This makes the Burrows-Wheeler block sort a bit of a pain to impliment, with a

lua-users wiki: Weak Tables Tutorial - The weak link In a weak table the keys and/or values are weak references. in a do block is so that we may force garbage collection of the value later with Note that once a table has been used as a metatable then it is not

RAM Space Skimpy Key-Value Store on Flash-based - wide variation in bucket sizes (hence, chain lengths and associated personal or classroom use is granted without fee provided that copies are not made Key- value store, Flash memory, Indexing, RAM space efficien in- cache, a simple write back persistent block cache designed to accel- . future garbage collection.

Class: Hash (Ruby 2.6) - File::Stat · FileTest · Float · FloatDomainError · FrozenError · GC · GC::Profiler A Hash is a dictionary-like collection of unique keys and their values. .. Associates the value given by value with the key given by key . . If the optional code block is given and the key is not found, pass in the key and return the result of block.

weakhashmap example

Example of WeakHashMap in Java - In this article, we will be looking at a WeakHashMap from the java.util package. Simply put, the WeakHashMap is a hashtable-based implementation of the Map interface, with keys that are of a WeakReference type. When the garbage collection (GC) process discards a key, its entry is

Guide to WeakHashMap in Java - WeakHashMap is an implementation of the Map interface. WeakHashMap is almost same as HashMap except in case of WeakHashMap, if object is specified . NumberFormat getCurrencyInstance() method in Java with Examples · BigInteger

Hashmap vs WeakHashMap in Java - A very simple example, to enlighten what has already been said : import java.util. WeakHashMap; public class WeakHashMapDemo { public

WeakHashMap example - Example of WeakHashMap in Java. The key of WeakHashMap has weak reference. If the key has been garbage collected, then the entry in WeakHashMap object will automatically be deleted. In the HashMap object entry will be there but in WeakHashMap object there will not be entry present.

WeakHashMap in Java With Class Example - As part of the Java Collections Framework, we look at how to implement WeakHashMap in a class example, which has similar performance

Java The WeakHashMap Class - Java The WeakHashMap Class - Learn Java in simple and easy steps starting from basic to advanced concepts with examples including Java Syntax Object

WeakHashMap Example - In following example, we are not going to keep references of both keys and values of the WeakHashMap. public class WeakHashMapExample

A Java WeakHashMap class example - An example of how to use the Java WeakHashMap class.

Java WeakHashMap Example - WeakHashMap in Java implements the Map interface and represents a hash table that has weak keys. If a key is not in an ordinary use, the

WeakHashMap Example Java - WeakHashMap (unlike HashMap) garbage collects even elements also without waiting for whole map object. This saves memory.

lua memory management

17 - Lua does automatic memory management. A program only creates objects ( tables, functions, etc.); there is no function to delete objects. Lua automatically

Lua Garbage Collection - Lua uses automatic memory management that uses garbage collection based on certain algorithms that is in-built in Lua. As a result of automatic memory

lua memory management - Why do you want to do this? If you need to remove all elements in Lua stack, you should call lua_settop(L, 0) . To quote manual: void lua_settop (lua_State *L,

Puzzled by Memory Management - Lua Language - Puzzled by Memory Management - posted in Lua Language: Hey! For all the games that I have been a part of in creating using Corona, there

lua-users wiki: Optimising Garbage Collection - Lua has unique strings, that means that each possible string exists only That way you get old style memory management for tables but you'll

Curious about Lua/Windows memory management - All, This is not a problem or big concern, but I'm curious about how memory management and garbage collection works with Lua in a Windows

Lua memory management, calling collectgarbage ? - I have a screen saver applet (AlbumFlow) that have a Canvas that updates at the device framerate. I've had issues with running out of memory

The.Lua.Tutorial » collectgarbage() - "count": returns the total memory in use by Lua (in Kbytes). "step": performs a garbage-collection step. The step "size" is controlled by arg (larger values mean

development blog: Fixing memory issues in Lua - Garbage collection can be both a blessing and a curse. On the one hand, it frees you from manually managing memory. This saves

Lua: 2.10: Garbage Collection - Lua performs automatic memory management. This means that you have to worry neither about allocating memory for new objects nor about freeing it when the


WeakReference Class (System) - The Target property for the WeakReference objects is an object in a byte array that represents data. The example randomly accesses objects in the cache. If an object is reclaimed for garbage collection, a new data object is regenerated; otherwise, the object is available to access because of the weak reference. C# Copy.

WeakReference (Java Platform SE 7 ) - Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed. Weak references are most often used to

WeakReference - Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed. Weak references are most often used to

Weak References in Java - Overview. In this article, we'll have a look at the concept of a weak reference – in the Java language. We're going to explain what these are,

Weak reference - In computer programming, a weak reference is a reference that does not protect the referenced object from collection by a garbage collector, unlike a strong

What's the difference between SoftReference and WeakReference in - A weak reference, simply put, is a reference that isn't strong enough to force an object to remain in memory. Weak references allow you to

WeakReference - Manual - They are useful for implementing cache like structures. Note: The class WeakReference is not to be confused with the class WeakRef of the Weakref extension.

C# WeakReference Example - This C# article describes the WeakReference type. It provides example code.

Finally understanding how references work in Android and Java - If you are an Android developer and you do not use WeakReferences, you have a problem. On an example of good timing, a couple of months

My two cents on weak references in .Net - A weak reference is one that references an object in the memory while at the same time enabling the garbage collector to collect the object or