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1#!/bin/sh2# SPDX-License-Identifier: GPL-2.03# description: Change the ringbuffer size4# flags: instance5 6rb_size_test() {7ORIG=`cat buffer_size_kb`8 9expr $ORIG / 2 > buffer_size_kb10 11expr $ORIG \* 2 > buffer_size_kb12 13echo $ORIG > buffer_size_kb14}15 16rb_size_test17 18: "If per-cpu buffer is supported, imbalance it"19if [ -d per_cpu/cpu0 ]; then20 cd per_cpu/cpu021 rb_size_test22fi23