[WIP] Mimalloc Integration - #212
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| // * - size: number of bytes to copied | ||
| // * @return - pointer to the copied string | ||
| // * NOTE: Read this link to understand the nature of strdup & strndup | ||
| // * https://pubs.opengroup.org/onlineptrpubs/9699919799/functions/strdup.html |
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Seems like this change was unintentional...
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August 28, 2026 10:11
…odifications to the Dockerfile and cargo files to ensure mimalloc source is correctly linked with libresolve.
…cument workflow and after CI run.
…alloc archive to cargo so that downstream tests pass.
…see if it works correctly.
… compare the mimalloc approach to strict shadow object bounds approach.
…ncy. Added debugging statement and logic to use libc free if the allocation is not from mimalloc.
added 26 commits
August 28, 2026 10:33
…f the pointer is owned by a mimalloc allocation.
…to __resolve_free.
… the pointer is within a mimalloc-owned mem region.
…to return null pointers for pointers that are not allocated by mimalloc.
… in image-histogram is an interior pointer.
…nter originates from.
…ointer is within the region of mimalloc.
…he correct allocation size.
…egration to include Ryan's changes.
…mmented code from runtime functions, and adding info!() to debug allocation bounds returned from mimalloc.
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NOTE: Mimalloc cannot be mixed with other allocators. This includes external dependencies! |
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This PR contains changes to
libresolveto investigate alternative approaches to allocation metadata lookup. The motivation behind this change is to investigate the cost of retrieving metadata for registered dynamic allocations. The current lookup implementation searches aBTreeMapcontaining registered heap allocations. This lookup introduces overhead that can become significant in applications that perform frequent heap accesses or contain a large number of dynamic allocations.To mitigate this cost, we have started investigating approaches for reducing the overhead of allocation metadata lookups. The mimalloc allocator has excellent performance characteristics, and one of its notable properties is its ability to locate allocation metadata in O(1) time from an allocation address. At a high level, mimalloc organizes memory into segments, pages, and fixed-size blocks, allowing the page containg the pointer to be located directly from its address. The corresponding page metadata then provides information such as the page start address and block size, which can be used to determine the bounds of the allocation.