49 lines
1.8 KiB
Bash
Executable File
49 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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#/*
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# * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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# * contributor license agreements. See the NOTICE file distributed with
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# * this work for additional information regarding copyright ownership.
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# * The OpenAirInterface Software Alliance licenses this file to You under
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# * the OAI Public License, Version 1.1 (the "License"); you may not use this file
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# * except in compliance with the License.
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# * You may obtain a copy of the License at
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# *
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# * http://www.openairinterface.org/?page_id=698
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# *
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# * Unless required by applicable law or agreed to in writing, software
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# * distributed under the License is distributed on an "AS IS" BASIS,
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# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# * See the License for the specific language governing permissions and
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# * limitations under the License.
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# *-------------------------------------------------------------------------------
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# * For more information about the OpenAirInterface (OAI) Software Alliance:
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# * contact@openairinterface.org
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# */
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# \author Navid Nikaein, Rohit Gupta
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# To free unused memory else test setup runs out of memory
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mem_threshold=0.2 #If free memory is less than this threshold, then VM drop cache is called
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mem_tot=`vmstat -s -S k |grep "total memory" | awk '{print $1}'`
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mem_free=`vmstat -s -S k |grep "free memory" | awk '{print $1}'`
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mem_frac=`bc <<< "scale=4;$mem_free/$mem_tot"`
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echo $mem_frac
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#mem_frac=`bc <<< "scale=4;`echo $mem_free`/`echo $mem_tot`"`
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echo "Total Memory = $mem_tot k "
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echo "Free Memory = $mem_free k"
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echo "Fraction free memory = $mem_frac "
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res=`bc <<< "$mem_frac < 0.2" `
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echo "Comparison Result = $res"
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if [ "$res" == "1" ]
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then
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echo "Free memory less than threshold = $mem_threshold"
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sudo -E bash -c 'echo 3 > /proc/sys/vm/drop_caches '
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fi
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