LWJGL 3.3.3 · org.lwjgl.system.jemalloc

Contains bindings to the jemalloc library. jemalloc is a general purpose malloc implementation that emphasizes fragmentation avoidance and scalable concurrency support.

The jemalloc documentation can be found here. The jemalloc wiki also contains useful information.

The jemalloc shared library that comes with LWJGL is configured with:

--with-jemalloc-prefix=je_
--enable-lazy-lock (Linux)
--disable-stats
--disable-fill
--disable-cxx
--disable-initial-exec-tls (Linux & macOS)
--disable-zone-allocator (macOS)

The shared library may be replaced with a custom build that has more features enabled.

Dynamic configuration (for enabled features) is also possible, using either the MALLOC_CONF environment variable or the MALLCTL NAMESPACE and the mallctl* functions.

Interface Summary

Modifier and Type	Interface and Description
public interface	ExtentAllocI Instances of this interface may be set to the `ExtentHooks` struct.
public interface	ExtentCommitI Instances of this interface may be set to the `ExtentHooks` struct.
public interface	ExtentDallocI Instances of this interface may be set to the `ExtentHooks` struct.
public interface	ExtentDecommitI Instances of this interface may be set to the `ExtentHooks` struct.
public interface	ExtentDestroyI Instances of this interface may be set to the `ExtentHooks` struct.
public interface	ExtentMergeI Instances of this interface may be set to the `ExtentHooks` struct.
public interface	ExtentPurgeI Instances of this interface may be set to the `ExtentHooks` struct.
public interface	ExtentSplitI Instances of this interface may be set to the `ExtentHooks` struct.
public interface	MallocMessageCallbackI Instances of this interface may be passed to the `malloc_usable_size` method.

Class Summary

Modifier and Type	Class and Description
public abstract class	ExtentAlloc Instances of this class may be set to the `ExtentHooks` struct.
public abstract class	ExtentCommit Instances of this class may be set to the `ExtentHooks` struct.
public abstract class	ExtentDalloc Instances of this class may be set to the `ExtentHooks` struct.
public abstract class	ExtentDecommit Instances of this class may be set to the `ExtentHooks` struct.
public abstract class	ExtentDestroy Instances of this class may be set to the `ExtentHooks` struct.
public class	ExtentHooks The `extent_hooks_t` structure comprises function pointers which are described individually below.
public abstract class	ExtentMerge Instances of this class may be set to the `ExtentHooks` struct.
public abstract class	ExtentPurge Instances of this class may be set to the `ExtentHooks` struct.
public abstract class	ExtentSplit Instances of this class may be set to the `ExtentHooks` struct.
public class	JEmalloc Native bindings to jemalloc.
public class	JEmallocAllocator A `MemoryAllocator` implementation using the jemalloc library.
public abstract class	MallocMessageCallback Instances of this class may be passed to the `malloc_usable_size` method.

Package org.lwjgl.system.jemalloc

Interface Summary

Class Summary