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#!/usr/bin/python3
#
# Copyright (C) 2020 Collabora Ltd
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
from google import protobuf
import protos.perfetto.trace.perfetto_trace_pb2
from protos.perfetto.trace.perfetto_trace_pb2 import BUILTIN_CLOCK_BOOTTIME
from protos.perfetto.trace.perfetto_trace_pb2 import BUILTIN_CLOCK_REALTIME
import math
import sys
import operator
import time
def add_ftrace_event(out_message, in_packet, in_event, max_host_sequence_id = 0):
out_packet = out_message.packet.add()
out_packet.ftrace_events.cpu = in_packet.ftrace_events.cpu
out_packet.trusted_uid = in_packet.trusted_uid
out_packet.trusted_packet_sequence_id += max_host_sequence_id
out_packet.ftrace_events.event.add().CopyFrom(in_event)
virtio_gpu_pids = set()
print('%d Loading host trace' % time.time())
in_message = protos.perfetto.trace.perfetto_trace_pb2.Trace()
in_message.ParseFromString(open(sys.argv[1], 'rb').read())
print('%d Copying host trace' % time.time())
out_message = protos.perfetto.trace.perfetto_trace_pb2.Trace()
max_host_sequence_id = 0
first_host_virtio_gpu_cmd = math.inf
host_boot_ts = -1
for in_packet in in_message.packet:
max_host_sequence_id = max(max_host_sequence_id,
in_packet.trusted_packet_sequence_id)
if in_packet.HasField('ftrace_events'):
for event in in_packet.ftrace_events.event:
if event.HasField('sched_switch'):
if 'virtio_gpu' == event.sched_switch.prev_comm:
virtio_gpu_pids.add(event.sched_switch.prev_pid)
if 'virtio_gpu' == event.sched_switch.next_comm:
virtio_gpu_pids.add(event.sched_switch.next_pid)
if event.sched_switch.prev_pid in virtio_gpu_pids or \
event.sched_switch.next_pid in virtio_gpu_pids:
add_ftrace_event(out_message, in_packet, event)
elif event.HasField('sched_wakeup'):
if 'virtio_gpu' == event.sched_wakeup.comm:
virtio_gpu_pids.add(event.sched_wakeup.pid)
if event.sched_wakeup.pid in virtio_gpu_pids:
add_ftrace_event(out_message, in_packet, event)
elif event.HasField('print'):
event_type, guest_pid, label, cookie = event.print.buf.split('|')
# Replace host PID with the guest PID
event.pid = int(guest_pid)
add_ftrace_event(out_message, in_packet, event)
else:
if in_packet.HasField('track_descriptor'):
if in_packet.track_descriptor.HasField('name'):
in_packet.track_descriptor.name += ' (Host)'
elif in_packet.HasField('track_event'):
if in_packet.track_event.type == in_packet.track_event.TYPE_SLICE_BEGIN and \
in_packet.track_event.name == 'GetCapset':
first_host_virtio_gpu_cmd = min(first_host_virtio_gpu_cmd, in_packet.timestamp)
elif host_boot_ts == -1 and in_packet.HasField('clock_snapshot'):
for clock in in_packet.clock_snapshot.clocks:
if clock.clock_id == BUILTIN_CLOCK_BOOTTIME:
host_boottime = clock.timestamp
elif clock.clock_id == BUILTIN_CLOCK_REALTIME:
host_realtime = clock.timestamp
host_boot_ts = host_realtime - host_boottime
out_packet = out_message.packet.add()
out_packet.CopyFrom(in_packet)
print('%d Loading guest trace' % time.time())
in_message.ParseFromString(open(sys.argv[2], 'rb').read())
#print('%d Writing guest trace txt' % time.time())
#open('../traces-db/perfetto-guest.txt', 'w').write(str(in_message))
first_guest_virtio_gpu_cmd = math.inf
guest_boot_ts = -1
for in_packet in in_message.packet:
if guest_boot_ts == -1 and in_packet.HasField('clock_snapshot'):
for clock in in_packet.clock_snapshot.clocks:
if clock.clock_id == BUILTIN_CLOCK_BOOTTIME:
guest_boottime = clock.timestamp
elif clock.clock_id == BUILTIN_CLOCK_REALTIME:
guest_realtime = clock.timestamp
guest_boot_ts = guest_realtime - guest_boottime
elif in_packet.HasField('track_event'):
if in_packet.track_event.type == in_packet.track_event.TYPE_SLICE_BEGIN and \
in_packet.track_event.name == 'DRM_IOCTL_VIRTGPU_GET_CAPS':
first_guest_virtio_gpu_cmd = min(first_guest_virtio_gpu_cmd, in_packet.timestamp)
delta = guest_boot_ts - host_boot_ts
cmd_delta = first_host_virtio_gpu_cmd - first_guest_virtio_gpu_cmd - delta
print("boottime delta %ds." % (delta / 1000 / 1000 / 1000))
print("cmd delta %dus." % (cmd_delta / 1000))
for in_packet in in_message.packet:
if in_packet.HasField('process_tree') or \
in_packet.HasField('service_event') or \
in_packet.HasField('track_event') or \
in_packet.HasField('trace_packet_defaults') or \
in_packet.HasField('track_descriptor'):
out_packet = out_message.packet.add()
out_packet.CopyFrom(in_packet)
out_packet.trusted_packet_sequence_id += max_host_sequence_id
out_packet.timestamp += delta
if out_packet.HasField('track_descriptor'):
if out_packet.track_descriptor.HasField('name'):
out_packet.track_descriptor.name += ' (Guest)'
elif in_packet.HasField('ftrace_events'):
for event in in_packet.ftrace_events.event:
event.timestamp += delta
add_ftrace_event(out_message, in_packet, event, max_host_sequence_id)
def get_timestamp(packet):
if packet.HasField('timestamp'):
return packet.timestamp
elif packet.HasField('ftrace_events') and \
packet.ftrace_events.event:
return packet.ftrace_events.event[0].timestamp
return 0
out_message.packet.sort(key=get_timestamp)
print('%d Writing merged trace' % time.time())
open(sys.argv[3], 'wb').write(out_message.SerializeToString())
#print('%d Writing merged trace txt' % time.time())
#open('../traces-db/perfetto.txt', 'w').write(str(out_message))
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