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#!/usr/bin/python
#
# Copyright (C) 2018 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.
import argparse
import itertools
import json
import sqlite3
class SqliteWriter(object):
def __init__(self):
self.sample_count = 0
self.dso_map = {}
self.pid_map = {}
self.tid_map = {}
self.symbol_map = {}
def open(self, out):
self._conn = sqlite3.connect(out)
self._c = self._conn.cursor()
# Ensure tables exist
# The sample replicates pid and tid.
try:
self._c.execute('''CREATE TABLE pids (id integer PRIMARY KEY AUTOINCREMENT,
name text)''')
self._c.execute('''CREATE TABLE tids (id integer PRIMARY KEY AUTOINCREMENT,
name text)''')
self._c.execute('''CREATE TABLE syms (id integer PRIMARY KEY AUTOINCREMENT,
name text)''')
self._c.execute('''CREATE TABLE dsos (id integer PRIMARY KEY AUTOINCREMENT,
name text)''')
self._c.execute('''CREATE TABLE samples (id integer PRIMARY KEY AUTOINCREMENT,
pid_id int not null,
tid_id int not null)
''')
self._c.execute('''CREATE TABLE stacks (sample_id int not null,
depth int not null,
dso_id int not null,
sym_id int not null,
offset int not null,
primary key (sample_id, depth))
''')
except sqlite3.OperationalError:
pass # ignore
def close(self):
self._conn.commit()
self._conn.close()
def insert_into_tmp_or_get(self, name, table_dict, table_dict_tmp):
if name in table_dict:
return table_dict[name]
if name in table_dict_tmp:
return table_dict_tmp[name]
index = len(table_dict) + len(table_dict_tmp)
table_dict_tmp[name] = index
return index
def prepare(self):
self.dso_tmp_map = {}
self.pid_tmp_map = {}
self.tid_tmp_map = {}
self.symbol_tmp_map = {}
self.samples_tmp_list = []
self.stacks_tmp_list = []
def write_sqlite_index_table(self, table_dict, table_name):
for key, value in table_dict.iteritems():
self._c.execute("insert into {tn} values (?,?)".format(tn=table_name), (value, key))
def flush(self):
self.write_sqlite_index_table(self.pid_tmp_map, 'pids')
self.write_sqlite_index_table(self.tid_tmp_map, 'tids')
self.write_sqlite_index_table(self.dso_tmp_map, 'dsos')
self.write_sqlite_index_table(self.symbol_tmp_map, 'syms')
for sample in self.samples_tmp_list:
self._c.execute("insert into samples values (?,?,?)", sample)
for stack in self.stacks_tmp_list:
self._c.execute("insert into stacks values (?,?,?,?,?)", stack)
self.pid_map.update(self.pid_tmp_map)
self.tid_map.update(self.tid_tmp_map)
self.dso_map.update(self.dso_tmp_map)
self.symbol_map.update(self.symbol_tmp_map)
self.dso_tmp_map = {}
self.pid_tmp_map = {}
self.tid_tmp_map = {}
self.symbol_tmp_map = {}
self.samples_tmp_list = []
self.stacks_tmp_list = []
def add_sample(self, sample, tid_name_map):
sample_id = self.sample_count
self.sample_count = self.sample_count + 1
def get_name(pid, name_map):
if pid in name_map:
return name_map[pid]
pid_str = str(pid)
if pid_str in name_map:
return name_map[pid_str]
if pid == 0:
return "[kernel]"
return "[unknown]"
pid_name = get_name(sample[0], tid_name_map)
pid_id = self.insert_into_tmp_or_get(pid_name, self.pid_map, self.pid_tmp_map)
tid_name = get_name(sample[1], tid_name_map)
tid_id = self.insert_into_tmp_or_get(tid_name, self.tid_map, self.tid_tmp_map)
self.samples_tmp_list.append((sample_id, pid_id, tid_id))
stack_depth = 0
for entry in sample[2]:
sym_id = self.insert_into_tmp_or_get(entry[0], self.symbol_map, self.symbol_tmp_map)
dso = entry[2]
if dso is None:
dso = "None"
dso_id = self.insert_into_tmp_or_get(dso, self.dso_map, self.dso_tmp_map)
self.stacks_tmp_list.append((sample_id, stack_depth, dso_id, sym_id, entry[1]))
stack_depth = stack_depth + 1
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='''Process a set of perfprofd JSON files produced
by perf_proto_stack.py into SQLite database''')
parser.add_argument('file', help='JSON files to parse and combine', metavar='file', nargs='+')
parser.add_argument('--sqlite-out', help='SQLite database output', type=str,
default='sqlite.db')
args = parser.parse_args()
if args is not None:
sql_out = SqliteWriter()
sql_out.open(args.sqlite_out)
sql_out.prepare()
for f in args.file:
print 'Processing %s' % (f)
fp = open(f, 'r')
data = json.load(fp)
fp.close()
for sample in data['samples']:
sql_out.add_sample(sample, data['names'])
sql_out.flush()
sql_out.close()
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