1*4882a593Smuzhiyun#!/bin/sh 2*4882a593Smuzhiyun# description: Snapshot and tracing setting 3*4882a593Smuzhiyun# requires: snapshot 4*4882a593Smuzhiyun# flags: instance 5*4882a593Smuzhiyun 6*4882a593Smuzhiyunecho "Set tracing off" 7*4882a593Smuzhiyunecho 0 > tracing_on 8*4882a593Smuzhiyun 9*4882a593Smuzhiyunecho "Allocate and take a snapshot" 10*4882a593Smuzhiyunecho 1 > snapshot 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun# Since trace buffer is empty, snapshot is also empty, but allocated 13*4882a593Smuzhiyungrep -q "Snapshot is allocated" snapshot 14*4882a593Smuzhiyun 15*4882a593Smuzhiyunecho "Ensure keep tracing off" 16*4882a593Smuzhiyuntest `cat tracing_on` -eq 0 17*4882a593Smuzhiyun 18*4882a593Smuzhiyunecho "Set tracing on" 19*4882a593Smuzhiyunecho 1 > tracing_on 20*4882a593Smuzhiyun 21*4882a593Smuzhiyunecho "Take a snapshot again" 22*4882a593Smuzhiyunecho 1 > snapshot 23*4882a593Smuzhiyun 24*4882a593Smuzhiyunecho "Ensure keep tracing on" 25*4882a593Smuzhiyuntest `cat tracing_on` -eq 1 26*4882a593Smuzhiyun 27*4882a593Smuzhiyunexit 0 28