| Server IP : 127.0.1.1 / Your IP : 216.73.216.172 Web Server : Apache/2.4.52 (Ubuntu) System : Linux bahcrestlinepropertiesllc 5.15.0-113-generic #123-Ubuntu SMP Mon Jun 10 08:16:17 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/src/linux-headers-5.15.0-113/tools/testing/selftests/rcutorture/bin/ |
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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
# Get an estimate of how CPU-hoggy to be.
#
# Usage: cpus2use.sh
#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
if test -n "$TORTURE_ALLOTED_CPUS"
then
echo $TORTURE_ALLOTED_CPUS
exit 0
fi
ncpus=`grep '^processor' /proc/cpuinfo | wc -l`
if mpstat -V > /dev/null 2>&1
then
idlecpus=`mpstat | tail -1 | \
awk -v ncpus=$ncpus '{ print ncpus * ($7 + $NF) / 100 }'`
else
# No mpstat command, so use all available CPUs.
idlecpus=$ncpus
fi
awk -v ncpus=$ncpus -v idlecpus=$idlecpus < /dev/null '
BEGIN {
cpus2use = idlecpus;
if (cpus2use < 1)
cpus2use = 1;
if (cpus2use < ncpus / 10)
cpus2use = ncpus / 10;
if (cpus2use == int(cpus2use))
cpus2use = int(cpus2use)
else
cpus2use = int(cpus2use) + 1
print cpus2use;
}'