ringbuffer_size.tc

 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