c6a2c39404
Refactor ph to support configurable comparison functions. Use a cpp macro code generation form equivalent to the rb macros so that pairing heaps can be used for both run heaps and chunk heaps. Remove per node parent pointers, and instead use leftmost siblings' prev pointers to track parents. Fix multi-pass sibling merging to iterate over intermediate results using a FIFO, rather than a LIFO. Use this fixed sibling merging implementation for both merge phases of the auxiliary twopass algorithm (first merging the aux list, then replacing the root with its merged children). This fixes both degenerate merge behavior and the potential for deep recursion. This regression was introduced by 6bafa6678fc36483e638f1c3a0a9bf79fb89bfc9 (Pairing heap). This resolves #371.
jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support. jemalloc first came into use as the FreeBSD libc allocator in 2005, and since then it has found its way into numerous applications that rely on its predictable behavior. In 2010 jemalloc development efforts broadened to include developer support features such as heap profiling, Valgrind integration, and extensive monitoring/tuning hooks. Modern jemalloc releases continue to be integrated back into FreeBSD, and therefore versatility remains critical. Ongoing development efforts trend toward making jemalloc among the best allocators for a broad range of demanding applications, and eliminating/mitigating weaknesses that have practical repercussions for real world applications. The COPYING file contains copyright and licensing information. The INSTALL file contains information on how to configure, build, and install jemalloc. The ChangeLog file contains a brief summary of changes for each release. URL: http://www.canonware.com/jemalloc/