A. nedmalloc nedmalloc is an good general-purpose allocator and it is based on dlmalloc, one of the most tried & tested memory allocators available as it is the core allocator in Linux. A per-thread small block cache for maximum CPU scalability and unique user mode page allocator implementations makes nedmalloc worth of investigation.
B. tcmalloc TCMalloc is space-efficient representation of small objects. For example, N 8-byte objects can be allocated while using space approximately 8N * 1.01 bytes. I.e., a one-percent space overhead. TCMalloc assigns each thread a thread-local cache. Small allocations are satisfied from the thread-local cache. Objects are moved from central data structures into a thread-local cache as needed, and periodic garbage collections are used to migrate memory back from a thread-local cache into the central data structures. Default size for thread-local cache is 2MB.
C. jemalloc jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support.Jemalloc carries ideas like – prefer low addresses during re-use, segregate small objects according to size class, imposetight limits on allocator metadata overhead, minimize the active page set, minimize lock contention etc. jemalloc-svelte configuration disables the flag-“JEMALLOC_TCACHE”. JEMALLOC_TCACHE enables athread-specific caching layer for small objects. This makes it possible to allocate/deallocate objects without any locking when the cache is in the steady state. bca project topics in php mysql for mca
D. dlmalloc Most versions of Linux are based on Doug Lea’s malloc(dlmalloc) as the default native version of malloc. It is worth to compare performance data of other malloc allocators with most commonly used dlmalloc
E. musl malloc musl is a “libc”, an implementation of the standard library functionality described in the ISO C and POSIX standards, plus common extensions, intended for use on Linux-based systems.It is lightweight, fast, simple, free, and aims to be correct in the sense of standards-conformance and safety. As a part of memory comparison exercise and libc integration effort with Android, we are taking only malloc implementation from musl lib. https://codeshoppy.com/php-projects-titles-topics.html Though full working integration has not been achieved (found few glitch with multi threaded apps), it is worth to look at the data for size and malloc benchmark that has been successful to run over this implementation.
F. tlsf -malloc TLSF (Two-Level Segregate Fit) allocator. TLSF is a general purpose dynamic memory allocator specifically designed to meet real-time requirements like bounded response time, fast,lower fragmentation etc. TLSF has been included in several Linux distributions and applications like crux, comp cache etc.