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f008ce9fe1
This change includes the following improvements: - Remove the hpa_sec_batch_fill_extra parameter. - Refactor the hpa_alloc() code and helper functions to be able to allocate more than one extent out of a single pageslab. This way we can amortize the per-pageslab costs (active bitmap iteration, pageslab metadata updates) across multiple extents. - Decide on a min and max number of extents that will be allocated in hpa_alloc(). The code will try to allocate at least the min and allocate up to the max as long as we can allocate additional ones from the pageslab we already have, as additional allocations are relatively cheap. - Add extent allocation distribution stats. - Amend hpa_sec_integration.c unit test. |
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| INSTALL.md | ||
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| README | ||
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| TUNING.md | ||
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/