| #!/usr/bin/env python3 |
| # Copyright (C) 2020 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| from os import sys, path |
| |
| import synth_common |
| |
| trace = synth_common.create_trace() |
| |
| # Add a tracing_started packet which should cause all ftrace |
| # events before this ts to be dropped. |
| packet = trace.add_packet(ts=100) |
| packet.service_event.tracing_started = True |
| |
| # Everything in this packet should be dropped. |
| trace.add_ftrace_packet(cpu=0) |
| trace.add_sched(ts=50, prev_pid=1, next_pid=2, prev_comm='t1', next_comm='t2') |
| trace.add_sched(ts=60, prev_pid=2, next_pid=1, prev_comm='t2', next_comm='t1') |
| trace.add_sched(ts=70, prev_pid=1, next_pid=2, prev_comm='t1', next_comm='t2') |
| trace.add_sched( |
| ts=80, prev_pid=2, next_pid=0, prev_comm='t2', next_comm='swapper') |
| |
| # The first 2 slices here should also be dropped but the last one should be |
| # retained. |
| trace.add_ftrace_packet(cpu=2) |
| trace.add_sched( |
| ts=80, prev_pid=0, next_pid=1, prev_comm='swapper', next_comm='t1') |
| trace.add_sched(ts=90, prev_pid=1, next_pid=2, prev_comm='t1', next_comm='t2') |
| trace.add_sched(ts=100, prev_pid=2, next_pid=1, prev_comm='t2', next_comm='t1') |
| trace.add_sched(ts=110, prev_pid=1, next_pid=2, prev_comm='t1', next_comm='t2') |
| |
| sys.stdout.buffer.write(trace.trace.SerializeToString()) |
