glibc/sysdeps/generic/adaptive_spin_count.h

23 lines
1.0 KiB
C

/* Maximum adaptive spin count by default
Copyright (C) 2018-2024 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/>. */
/* The choice of 100 spins for the default spin count for an adaptive spin
is a completely arbitrary choice that has not been evaluated thoroughly
using modern hardware. */
#define DEFAULT_ADAPTIVE_COUNT 100