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improve documentation about mapping count

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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 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 accomodate the large number of mappings caused by guard slabs and large
allocation guard regions. There will be a configuration option in `config.h` allocation guard regions. The number of mappings can also be drastically
for tuning the proportion of slabs to guard slabs too, since the default 1:1 reduced via a significant increase to `CONFIG_GUARD_SLABS_INTERVAL` but the
proportion makes the address space quite sparse. 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 It can offer slightly better performance when integrated into the C standard
library and there are other opportunities for similar hardening within C library and there are other opportunities for similar hardening within C