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Allocate and free through each arena binding while bypassing the tcache (MALLOCX_TCACHE_NONE), so the allocations and deallocations reach the arena rather than the thread cache. Assert via arenas.lookup that a region allocated while bound to the manual arena comes from it, and that after resuming per-CPU selection allocations come from a per-CPU arena. Finally free the manual-arena region while the thread is bound to a per-CPU arena, covering deallocation routing across the rebinding. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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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 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: https://jemalloc.net/