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Diffstat (limited to 'manual')
| -rw-r--r-- | manual/tunables.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/manual/tunables.texi b/manual/tunables.texi index 9ca6e3f..58a47b2 100644 --- a/manual/tunables.texi +++ b/manual/tunables.texi @@ -278,6 +278,13 @@ default value is @code{0}, which disables any additional support on Setting its value to @code{1} enables the use of @code{madvise} with @code{MADV_HUGEPAGE} after memory allocation with @code{mmap}. It is enabled only if the system supports Transparent Huge Page (currently only on Linux). + +Setting its value to @code{2} enables the use of Huge Page directly with +@code{mmap} with the use of @code{MAP_HUGETLB} flag. The huge page size +to use will be the default one provided by the system. A value larger than +@code{2} specifies huge page size, which will be matched against the system +supported ones. If provided value is invalid, @code{MAP_HUGETLB} will not +be used. @end deftp @node Dynamic Linking Tunables |