41 lines
1.1 KiB
Bash
41 lines
1.1 KiB
Bash
#!/bin/sh
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# Licensed to the Apache Software Foundation (ASF) 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 ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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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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export PATH=$PATH:/sbin
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#
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# GB
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#
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function changeFreeCache()
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{
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EXTRA=$1
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MIN=$2
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sysctl -w vm.extra_free_kbytes=${EXTRA}000000
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sysctl -w vm.min_free_kbytes=${MIN}000000
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}
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if [ $# -ne 1 ]
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then
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echo "Usage: $0 freecache(GB)"
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echo "Example: $0 15"
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exit
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fi
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changeFreeCache 3 $1
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changeFreeCache 3 1
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