b55419f9b9
Develop new data structure and code logic for holding profiling related information stored in the extent that may be needed after the extent is released, which in particular is the case for the reallocation code path (e.g. in `rallocx()` and `xallocx()`). The data structure is a generalization of `prof_tctx_t`: we previously only copy out the `prof_tctx` before the extent is released, but we may be in need of additional fields. Currently the only additional field is the allocation time field, but there may be more fields in the future. The restructuring also resolved a bug: `prof_realloc()` mistakenly passed the new `ptr` to `prof_free_sampled_object()`, but passing in the `old_ptr` would crash because it's already been released. Now the essential profiling information is collectively copied out early and safely passed to `prof_free_sampled_object()` after the extent is released. |
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| bin | ||
| build-aux | ||
| doc | ||
| include | ||
| m4 | ||
| msvc | ||
| scripts | ||
| src | ||
| test | ||
| .appveyor.yml | ||
| .autom4te.cfg | ||
| .cirrus.yml | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| autogen.sh | ||
| ChangeLog | ||
| config.stamp.in | ||
| configure.ac | ||
| COPYING | ||
| INSTALL.md | ||
| jemalloc.pc.in | ||
| Makefile.in | ||
| README | ||
| run_tests.sh | ||
| 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: http://jemalloc.net/