1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# description: Change the ringbuffer size 4# flags: instance 5 6rb_size_test() { 7ORIG=`cat buffer_size_kb` 8 9expr $ORIG / 2 > buffer_size_kb 10 11expr $ORIG \* 2 > buffer_size_kb 12 13echo $ORIG > buffer_size_kb 14} 15 16rb_size_test 17 18: "If per-cpu buffer is supported, imbalance it" 19if [ -d per_cpu/cpu0 ]; then 20 cd per_cpu/cpu0 21 rb_size_test 22fi 23