glibc/sysdeps/nptl/dl-tunables.list
Cupertino Miranda b630be0922 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>
2023-04-20 13:54:24 -03:00

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# Copyright (C) 2018-2023 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
glibc {
pthread {
mutex_spin_count {
type: INT_32
minval: 0
maxval: 32767
default: 100
}
stack_cache_size {
type: SIZE_T
default: 41943040
}
rseq {
type: INT_32
minval: 0
maxval: 1
default: 1
}
stack_hugetlb {
type: INT_32
minval: 0
maxval: 1
default: 1
}
}
}