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authorCupertino Miranda <cupertino.miranda@oracle.com>2023-04-14 16:12:20 +0100
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2023-04-20 13:54:24 -0300
commitb630be0922dbaaa50eb174a7740f0d3fb88602da (patch)
treefa0e6bd1ef8115117c6a2090b2dd5248269609fb /NEWS
parent0f61cd4b9c5175c128311769df932c8d7694d6b6 (diff)
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Created tunable to force small pages on stack allocation.
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>
Diffstat (limited to 'NEWS')
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diff --git a/NEWS b/NEWS
index 83d082afad..40964d2ee0 100644
--- a/NEWS
+++ b/NEWS
@@ -21,6 +21,9 @@ Major new features:
 
 * PRIb* and PRIB* macros from C2X have been added to <inttypes.h>.
 
+* A new tunable, glibc.pthread.stack_hugetlb, can be used to disable
+  Transparent Huge Pages (THP) in stack allocation at pthread_create.
+
 Deprecated and removed features, and other changes affecting compatibility:
 
 * In the Linux kernel for the hppa/parisc architecture some of the