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clean up options

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Daan 2022-02-02 19:01:41 -08:00
parent 932f866105
commit 4e65b5018f
4 changed files with 51 additions and 45 deletions
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doc/mimalloc-doc.h
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@ -811,9 +811,8 @@ typedef enum mi_option_e {
mi_option_segment_cache, ///< The number of segments per thread to keep cached.
mi_option_page_reset, ///< Reset page memory after \a mi_option_reset_delay milliseconds when it becomes free.
mi_option_segment_reset, ///< Experimental
mi_option_reset_delay, ///< Delay in milli-seconds before resetting a page (100ms by default)
mi_option_decommit_delay, ///< Delay in milli-seconds before decommitting currently unused reserved memory (25ms by default)
mi_option_use_numa_nodes, ///< Pretend there are at most N NUMA nodes
mi_option_reset_decommits, ///< Experimental
mi_option_eager_commit_delay, ///< Experimental
mi_option_os_tag, ///< OS tag to assign to mimalloc'd memory
_mi_option_last
@ -1068,7 +1067,7 @@ or via environment variables.
- `MIMALLOC_PAGE_RESET=0`: by default, mimalloc will reset (or purge) OS pages when not in use to signal to the OS
that the underlying physical memory can be reused. This can reduce memory fragmentation in long running (server)
programs. By setting it to `0` no such page resets will be done which can improve performance for programs that are not long
running. As an alternative, the `MIMALLOC_RESET_DELAY=`<msecs> can be set higher (100ms by default) to make the page
running. As an alternative, the `MIMALLOC_DECOMMIT_DELAY=`<msecs> can be set higher (100ms by default) to make the page
reset occur less frequently instead of turning it off completely.
- `MIMALLOC_LARGE_OS_PAGES=1`: use large OS pages (2MiB) when available; for some workloads this can significantly
improve performance. Use `MIMALLOC_VERBOSE` to check if the large OS pages are enabled -- usually one needs