Hoard memory allocator

Hoard
Hoard
Original author(s)	Emery Berger, Kathryn S. McKinley, Robert D. Blumofe, Paul R. Wilson
Developer(s)	Emery Berger
Initial release	September 29, 1999
Stable release	3.13 / January 1, 2019; 6 years ago
Repository	github.com/emeryberger/Hoard ;
Operating system	Linux, OS X, Microsoft Windows
Available in	C++
Type	Memory allocation
License	Apache License v2
Website	hoard.org

百度 ”刘强东说。

The Hoard memory allocator, or Hoard, is a memory allocator for Linux, OS X, and Microsoft Windows. Hoard is designed to be efficient when used by multithreaded applications on multiprocessor computers. Hoard is distributed under the Apache License, version 2.0.

History

In 2000, its author Emery Berger benchmarked some famous memory allocators and stated Hoard improves the performance of multithreaded applications by providing fast, scalable memory management functions (malloc and free). In particular, it reduces contention for the heap (the central data structure used in dynamic memory allocation) caused when multiple threads allocate or free memory, and avoids the false sharing that can be introduced by memory allocators. At the same time, Hoard has strict bounds on fragmentation.^[1]

Hoard continues to be maintained and improved, and is in use by a number of open source and commercial projects.^[2]^[3]

It has also inspired changes to other memory allocators such as the one in OS X since February 2008 (first released in Mac OS X Snow Leopard).^[4]^[5]

References

^ Berger, E. D.; McKinley, K. S.; Blumofe, R. D.; Wilson, P. R. (November 2000). Hoard: A Scalable Memory Allocator for Multithreaded Applications (PDF). ASPLOS-IX. Proceedings of the ninth international conference on Architectural support for programming languages and operating systems. pp. 117–128. CiteSeerX 10.1.1.1.4174. doi:10.1145/378993.379232. ISBN 1-58113-317-0.
^ "An alternative Memory Allocator for the standard glibc". 2025-08-06. Archived from the original on 2025-08-06.
^ "GNU Common C++ Downloading".
^ "I'm a Mac (or, "Emery Inside")". 26 October 2010.
^ "A look at how malloc works on the Mac".

External links

The Hoard web page.
Emery Berger, Hoard's author and a professor at the University of Massachusetts Amherst.

[Berger2000-1] Berger, E. D.; McKinley, K. S.; Blumofe, R. D.; Wilson, P. R. (November 2000). Hoard: A Scalable Memory Allocator for Multithreaded Applications (PDF). ASPLOS-IX. Proceedings of the ninth international conference on Architectural support for programming languages and operating systems. pp. 117–128. CiteSeerX 10.1.1.1.4174. doi:10.1145/378993.379232. ISBN 1-58113-317-0.

[2] "An alternative Memory Allocator for the standard glibc". 2025-08-06. Archived from the original on 2025-08-06.

[3] "GNU Common C++ Downloading".

[4] "I'm a Mac (or, "Emery Inside")". 26 October 2010.

[5] "A look at how malloc works on the Mac".

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v t e Memory management
Memory management as a function of an operating system
Hardware	Memory management unit (MMU) Translation lookaside buffer (TLB) Input–output memory management unit (IOMMU)
Virtual memory	Demand paging Memory paging Page table Virtual memory compression
Segmentation	Protected mode Real mode Virtual 8086 mode x86 memory segmentation
Allocator	dlmalloc Hoard jemalloc libumem mimalloc ptmalloc
Manual means	Static memory allocation C dynamic memory allocation new and delete (C++)
Garbage collection	Automatic Reference Counting Boehm garbage collector Cheney's algorithm Concurrent mark sweep collector Finalizer Garbage Garbage-first collector Mark–compact algorithm Reference counting Tracing garbage collection Strong reference Weak reference
Safety	Buffer overflow Buffer over-read Dangling pointer Stack overflow
Issues	Fragmentation Memory leak Unreachable memory
Other	Automatic variable International Symposium on Memory Management Region-based memory management Memory pool
Memory management Virtual memory Automatic memory management Memory management algorithms Memory management software

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History

See also

References

External links