57 lines
2.0 KiB
Bash
Executable File
57 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
|
|
#******************************************************************************
|
|
|
|
# OpenAirInterface
|
|
# Copyright(c) 1999 - 2014 Eurecom
|
|
|
|
# OpenAirInterface is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
|
|
|
|
# OpenAirInterface 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 General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with OpenAirInterface.The full GNU General Public License is
|
|
# included in this distribution in the file called "COPYING". If not,
|
|
# see <http://www.gnu.org/licenses/>.
|
|
|
|
# Contact Information
|
|
# OpenAirInterface Admin: openair_admin@eurecom.fr
|
|
# OpenAirInterface Tech : openair_tech@eurecom.fr
|
|
# OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
|
|
|
|
# Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
|
|
|
|
# *******************************************************************************/
|
|
# \author Navid Nikaein, Rohit Gupta
|
|
|
|
# To free unused memory else test setup runs out of memory
|
|
|
|
mem_threshold=0.2 #If free memory is less than this threshold, then VM drop cache is called
|
|
mem_tot=`vmstat -s -S k |grep "total memory" | awk '{print $1}'`
|
|
mem_free=`vmstat -s -S k |grep "free memory" | awk '{print $1}'`
|
|
|
|
mem_frac=`bc <<< "scale=4;$mem_free/$mem_tot"`
|
|
echo $mem_frac
|
|
#mem_frac=`bc <<< "scale=4;`echo $mem_free`/`echo $mem_tot`"`
|
|
echo "Total Memory = $mem_tot k "
|
|
echo "Free Memory = $mem_free k"
|
|
echo "Fraction free memory = $mem_frac "
|
|
|
|
res=`bc <<< "$mem_frac < 0.2" `
|
|
|
|
echo "Comparison Result = $res"
|
|
|
|
if [ "$res" == "1" ]
|
|
then
|
|
echo "Free memory less than threshold = $mem_threshold"
|
|
sudo -E bash -c 'echo 3 > /proc/sys/vm/drop_caches '
|
|
fi
|
|
|
|
|