Libumem

Libumem

Libumem

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libumem is a memory allocator userspace library used to manage memory allocation,[1][2] and may be used to detect memory management bugs in applications. It is based on the Slab allocator concept. Libumem is available as a standard part of Solaris from Solaris 9 Update 3 onwards.

Functions

Functions in this library provide fast, scalable object-caching memory allocation with multithreaded application support. In addition to the standard malloc(3C) family of functions and the more flexible umem_alloc(3MALLOC) family, libumem provides powerful object-caching services as described in umem_cache_create(3MALLOC).[3]

Getting started with libumem is easy; just set LD_PRELOAD to "libumem.so" and any program executed will use libumem's malloc(3C) and free(3C) (or new and delete). [4] This slab allocator is designed for systems with many threads and many CPUs. Memory allocation with naive allocators can be a serious bottleneck.

See also

Sources

  1. [1]
    "Proceedings of the 2001 USENIX Annual Technical Conference" (PDF). The USENIX Association. 2001.
  2. [2]
    "github / omniti-labs / portableumem". github.com. 27 Jun 2010. Retrieved 2020-08-04.
  3. [3]
    "Memory Leak Detection with libumem". Archived from the original on 2013-10-23. Retrieved 2013-10-22.
  4. [4]
    "Adam Leventhal's Weblog". Archived from the original on 2017-03-25.
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