lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-12-24 17:51:17 +03:00
Code Activity

Created tunable to force small pages on stack allocation.

Browse Source 
Created tunable glibc.pthread.stack_hugetlb to control when hugepages
can be used for stack allocation.
In case THP are enabled and glibc.pthread.stack_hugetlb is set to
0, glibc will madvise the kernel not to use allow hugepages for stack
allocations.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Cupertino Miranda
2023-04-14 16:12:20 +01:00
committed by Adhemerval Zanella
parent 0f61cd4b9c
commit b630be0922
7 changed files with 42 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
nptl/nptl-stack.h
View File

@@ -27,6 +27,9 @@
/* Maximum size of the cache, in bytes. 40 MiB by default. */
extern size_t __nptl_stack_cache_maxsize attribute_hidden;
/* Should allow stacks to use hugetlb. (1) is default. */
extern int32_t __nptl_stack_hugetlb;
/* Check whether the stack is still used or not. */
static inline bool
__nptl_stack_in_use (struct pthread *pd)