| #!/bin/sh | |
| # SPDX-License-Identifier: GPL-2.0 | |
| # description: Change the ringbuffer size | |
| # flags: instance | |
| rb_size_test() { | |
| ORIG=`cat buffer_size_kb` | |
| expr $ORIG / 2 > buffer_size_kb | |
| expr $ORIG \* 2 > buffer_size_kb | |
| echo $ORIG > buffer_size_kb | |
| } | |
| rb_size_test | |
| : "If per-cpu buffer is supported, imbalance it" | |
| if [ -d per_cpu/cpu0 ]; then | |
| cd per_cpu/cpu0 | |
| rb_size_test | |
| fi |