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improve documentation about mapping count

pull/69/head
Daniel Micay 2018-11-16 18:04:46 -05:00
parent 8a38c4fb2a
commit 2bb568b473
1 changed files with 3 additions and 3 deletions
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README.md
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@ -39,9 +39,9 @@ executables using glibc or musl:
It can be necessary to substantially increase the `vm.max_map_count` sysctl to
accomodate the large number of mappings caused by guard slabs and large
allocation guard regions. There will be a configuration option in `config.h`
for tuning the proportion of slabs to guard slabs too, since the default 1:1
proportion makes the address space quite sparse.
allocation guard regions. The number of mappings can also be drastically
reduced via a significant increase to `CONFIG_GUARD_SLABS_INTERVAL` but the
feature has a low performance and memory usage cost so that isn't recommended.
It can offer slightly better performance when integrated into the C standard
library and there are other opportunities for similar hardening within C