tools/perf/scripts/python/export-to-postgresql.py

   1 # export-to-postgresql.py: export perf data to a postgresql database
   2 # Copyright (c) 2014, Intel Corporation.
   3 #
   4 # This program is free software; you can redistribute it and/or modify it
   5 # under the terms and conditions of the GNU General Public License,
   6 # version 2, as published by the Free Software Foundation.
   7 #
   8 # This program is distributed in the hope it will be useful, but WITHOUT
   9 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11 # more details.
  12
  13 import os
  14 import sys
  15 import struct
  16 import datetime
  17
  18 # To use this script you will need to have installed package python-pyside which
  19 # provides LGPL-licensed Python bindings for Qt.  You will also need the package
  20 # libqt4-sql-psql for Qt postgresql support.
  21 #
  22 # The script assumes postgresql is running on the local machine and that the
  23 # user has postgresql permissions to create databases. Examples of installing
  24 # postgresql and adding such a user are:
  25 #
  26 # fedora:
  27 #
  28 #       $ sudo yum install postgresql postgresql-server python-pyside qt-postgresql
  29 #       $ sudo su - postgres -c initdb
  30 #       $ sudo service postgresql start
  31 #       $ sudo su - postgres
  32 #       $ createuser <your user id here>
  33 #       Shall the new role be a superuser? (y/n) y
  34 #
  35 # ubuntu:
  36 #
  37 #       $ sudo apt-get install postgresql
  38 #       $ sudo su - postgres
  39 #       $ createuser <your user id here>
  40 #       Shall the new role be a superuser? (y/n) y
  41 #
  42 # An example of using this script with Intel PT:
  43 #
  44 #       $ perf record -e intel_pt//u ls
  45 #       $ perf script -s ~/libexec/perf-core/scripts/python/export-to-postgresql.py pt_example branches calls
  46 #       2015-05-29 12:49:23.464364 Creating database...
  47 #       2015-05-29 12:49:26.281717 Writing to intermediate files...
  48 #       2015-05-29 12:49:27.190383 Copying to database...
  49 #       2015-05-29 12:49:28.140451 Removing intermediate files...
  50 #       2015-05-29 12:49:28.147451 Adding primary keys
  51 #       2015-05-29 12:49:28.655683 Adding foreign keys
  52 #       2015-05-29 12:49:29.365350 Done
  53 #
  54 # To browse the database, psql can be used e.g.
  55 #
  56 #       $ psql pt_example
  57 #       pt_example=# select * from samples_view where id < 100;
  58 #       pt_example=# \d+
  59 #       pt_example=# \d+ samples_view
  60 #       pt_example=# \q
  61 #
  62 # An example of using the database is provided by the script
  63 # call-graph-from-postgresql.py.  Refer to that script for details.
  64
  65 from PySide.QtSql import *
  66
  67 # Need to access PostgreSQL C library directly to use COPY FROM STDIN
  68 from ctypes import *
  69 libpq = CDLL("libpq.so.5")
  70 PQconnectdb = libpq.PQconnectdb
  71 PQconnectdb.restype = c_void_p
  72 PQfinish = libpq.PQfinish
  73 PQstatus = libpq.PQstatus
  74 PQexec = libpq.PQexec
  75 PQexec.restype = c_void_p
  76 PQresultStatus = libpq.PQresultStatus
  77 PQputCopyData = libpq.PQputCopyData
  78 PQputCopyData.argtypes = [ c_void_p, c_void_p, c_int ]
  79 PQputCopyEnd = libpq.PQputCopyEnd
  80 PQputCopyEnd.argtypes = [ c_void_p, c_void_p ]
  81
  82 sys.path.append(os.environ['PERF_EXEC_PATH'] + \
  83         '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
  84
  85 # These perf imports are not used at present
  86 #from perf_trace_context import *
  87 #from Core import *
  88
  89 perf_db_export_mode = True
  90 perf_db_export_calls = False
  91
  92 def usage():
  93         print >> sys.stderr, "Usage is: export-to-postgresql.py <database name> [<columns>] [<calls>]"
  94         print >> sys.stderr, "where:    columns         'all' or 'branches'"
  95         print >> sys.stderr, "          calls           'calls' => create calls table"
  96         raise Exception("Too few arguments")
  97
  98 if (len(sys.argv) < 2):
  99         usage()
 100
 101 dbname = sys.argv[1]
 102
 103 if (len(sys.argv) >= 3):
 104         columns = sys.argv[2]
 105 else:
 106         columns = "all"
 107
 108 if columns not in ("all", "branches"):
 109         usage()
 110
 111 branches = (columns == "branches")
 112
 113 if (len(sys.argv) >= 4):
 114         if (sys.argv[3] == "calls"):
 115                 perf_db_export_calls = True
 116         else:
 117                 usage()
 118
 119 output_dir_name = os.getcwd() + "/" + dbname + "-perf-data"
 120 os.mkdir(output_dir_name)
 121
 122 def do_query(q, s):
 123         if (q.exec_(s)):
 124                 return
 125         raise Exception("Query failed: " + q.lastError().text())
 126
 127 print datetime.datetime.today(), "Creating database..."
 128
 129 db = QSqlDatabase.addDatabase('QPSQL')
 130 query = QSqlQuery(db)
 131 db.setDatabaseName('postgres')
 132 db.open()
 133 try:
 134         do_query(query, 'CREATE DATABASE ' + dbname)
 135 except:
 136         os.rmdir(output_dir_name)
 137         raise
 138 query.finish()
 139 query.clear()
 140 db.close()
 141
 142 db.setDatabaseName(dbname)
 143 db.open()
 144
 145 query = QSqlQuery(db)
 146 do_query(query, 'SET client_min_messages TO WARNING')
 147
 148 do_query(query, 'CREATE TABLE selected_events ('
 149                 'id             bigint          NOT NULL,'
 150                 'name           varchar(80))')
 151 do_query(query, 'CREATE TABLE machines ('
 152                 'id             bigint          NOT NULL,'
 153                 'pid            integer,'
 154                 'root_dir       varchar(4096))')
 155 do_query(query, 'CREATE TABLE threads ('
 156                 'id             bigint          NOT NULL,'
 157                 'machine_id     bigint,'
 158                 'process_id     bigint,'
 159                 'pid            integer,'
 160                 'tid            integer)')
 161 do_query(query, 'CREATE TABLE comms ('
 162                 'id             bigint          NOT NULL,'
 163                 'comm           varchar(16))')
 164 do_query(query, 'CREATE TABLE comm_threads ('
 165                 'id             bigint          NOT NULL,'
 166                 'comm_id        bigint,'
 167                 'thread_id      bigint)')
 168 do_query(query, 'CREATE TABLE dsos ('
 169                 'id             bigint          NOT NULL,'
 170                 'machine_id     bigint,'
 171                 'short_name     varchar(256),'
 172                 'long_name      varchar(4096),'
 173                 'build_id       varchar(64))')
 174 do_query(query, 'CREATE TABLE symbols ('
 175                 'id             bigint          NOT NULL,'
 176                 'dso_id         bigint,'
 177                 'sym_start      bigint,'
 178                 'sym_end        bigint,'
 179                 'binding        integer,'
 180                 'name           varchar(2048))')
 181 do_query(query, 'CREATE TABLE branch_types ('
 182                 'id             integer         NOT NULL,'
 183                 'name           varchar(80))')
 184
 185 if branches:
 186         do_query(query, 'CREATE TABLE samples ('
 187                 'id             bigint          NOT NULL,'
 188                 'evsel_id       bigint,'
 189                 'machine_id     bigint,'
 190                 'thread_id      bigint,'
 191                 'comm_id        bigint,'
 192                 'dso_id         bigint,'
 193                 'symbol_id      bigint,'
 194                 'sym_offset     bigint,'
 195                 'ip             bigint,'
 196                 'time           bigint,'
 197                 'cpu            integer,'
 198                 'to_dso_id      bigint,'
 199                 'to_symbol_id   bigint,'
 200                 'to_sym_offset  bigint,'
 201                 'to_ip          bigint,'
 202                 'branch_type    integer,'
 203                 'in_tx          boolean)')
 204 else:
 205         do_query(query, 'CREATE TABLE samples ('
 206                 'id             bigint          NOT NULL,'
 207                 'evsel_id       bigint,'
 208                 'machine_id     bigint,'
 209                 'thread_id      bigint,'
 210                 'comm_id        bigint,'
 211                 'dso_id         bigint,'
 212                 'symbol_id      bigint,'
 213                 'sym_offset     bigint,'
 214                 'ip             bigint,'
 215                 'time           bigint,'
 216                 'cpu            integer,'
 217                 'to_dso_id      bigint,'
 218                 'to_symbol_id   bigint,'
 219                 'to_sym_offset  bigint,'
 220                 'to_ip          bigint,'
 221                 'period         bigint,'
 222                 'weight         bigint,'
 223                 'transaction    bigint,'
 224                 'data_src       bigint,'
 225                 'branch_type    integer,'
 226                 'in_tx          boolean)')
 227
 228 if perf_db_export_calls:
 229         do_query(query, 'CREATE TABLE call_paths ('
 230                 'id             bigint          NOT NULL,'
 231                 'parent_id      bigint,'
 232                 'symbol_id      bigint,'
 233                 'ip             bigint)')
 234         do_query(query, 'CREATE TABLE calls ('
 235                 'id             bigint          NOT NULL,'
 236                 'thread_id      bigint,'
 237                 'comm_id        bigint,'
 238                 'call_path_id   bigint,'
 239                 'call_time      bigint,'
 240                 'return_time    bigint,'
 241                 'branch_count   bigint,'
 242                 'call_id        bigint,'
 243                 'return_id      bigint,'
 244                 'parent_call_path_id    bigint,'
 245                 'flags          integer)')
 246
 247 do_query(query, 'CREATE VIEW samples_view AS '
 248         'SELECT '
 249                 'id,'
 250                 'time,'
 251                 'cpu,'
 252                 '(SELECT pid FROM threads WHERE id = thread_id) AS pid,'
 253                 '(SELECT tid FROM threads WHERE id = thread_id) AS tid,'
 254                 '(SELECT comm FROM comms WHERE id = comm_id) AS command,'
 255                 '(SELECT name FROM selected_events WHERE id = evsel_id) AS event,'
 256                 'to_hex(ip) AS ip_hex,'
 257                 '(SELECT name FROM symbols WHERE id = symbol_id) AS symbol,'
 258                 'sym_offset,'
 259                 '(SELECT short_name FROM dsos WHERE id = dso_id) AS dso_short_name,'
 260                 'to_hex(to_ip) AS to_ip_hex,'
 261                 '(SELECT name FROM symbols WHERE id = to_symbol_id) AS to_symbol,'
 262                 'to_sym_offset,'
 263                 '(SELECT short_name FROM dsos WHERE id = to_dso_id) AS to_dso_short_name,'
 264                 '(SELECT name FROM branch_types WHERE id = branch_type) AS branch_type_name,'
 265                 'in_tx'
 266         ' FROM samples')
 267
 268
 269 file_header = struct.pack("!11sii", "PGCOPY\n\377\r\n\0", 0, 0)
 270 file_trailer = "\377\377"
 271
 272 def open_output_file(file_name):
 273         path_name = output_dir_name + "/" + file_name
 274         file = open(path_name, "w+")
 275         file.write(file_header)
 276         return file
 277
 278 def close_output_file(file):
 279         file.write(file_trailer)
 280         file.close()
 281
 282 def copy_output_file_direct(file, table_name):
 283         close_output_file(file)
 284         sql = "COPY " + table_name + " FROM '" + file.name + "' (FORMAT 'binary')"
 285         do_query(query, sql)
 286
 287 # Use COPY FROM STDIN because security may prevent postgres from accessing the files directly
 288 def copy_output_file(file, table_name):
 289         conn = PQconnectdb("dbname = " + dbname)
 290         if (PQstatus(conn)):
 291                 raise Exception("COPY FROM STDIN PQconnectdb failed")
 292         file.write(file_trailer)
 293         file.seek(0)
 294         sql = "COPY " + table_name + " FROM STDIN (FORMAT 'binary')"
 295         res = PQexec(conn, sql)
 296         if (PQresultStatus(res) != 4):
 297                 raise Exception("COPY FROM STDIN PQexec failed")
 298         data = file.read(65536)
 299         while (len(data)):
 300                 ret = PQputCopyData(conn, data, len(data))
 301                 if (ret != 1):
 302                         raise Exception("COPY FROM STDIN PQputCopyData failed, error " + str(ret))
 303                 data = file.read(65536)
 304         ret = PQputCopyEnd(conn, None)
 305         if (ret != 1):
 306                 raise Exception("COPY FROM STDIN PQputCopyEnd failed, error " + str(ret))
 307         PQfinish(conn)
 308
 309 def remove_output_file(file):
 310         name = file.name
 311         file.close()
 312         os.unlink(name)
 313
 314 evsel_file              = open_output_file("evsel_table.bin")
 315 machine_file            = open_output_file("machine_table.bin")
 316 thread_file             = open_output_file("thread_table.bin")
 317 comm_file               = open_output_file("comm_table.bin")
 318 comm_thread_file        = open_output_file("comm_thread_table.bin")
 319 dso_file                = open_output_file("dso_table.bin")
 320 symbol_file             = open_output_file("symbol_table.bin")
 321 branch_type_file        = open_output_file("branch_type_table.bin")
 322 sample_file             = open_output_file("sample_table.bin")
 323 if perf_db_export_calls:
 324         call_path_file          = open_output_file("call_path_table.bin")
 325         call_file               = open_output_file("call_table.bin")
 326
 327 def trace_begin():
 328         print datetime.datetime.today(), "Writing to intermediate files..."
 329         # id == 0 means unknown.  It is easier to create records for them than replace the zeroes with NULLs
 330         evsel_table(0, "unknown")
 331         machine_table(0, 0, "unknown")
 332         thread_table(0, 0, 0, -1, -1)
 333         comm_table(0, "unknown")
 334         dso_table(0, 0, "unknown", "unknown", "")
 335         symbol_table(0, 0, 0, 0, 0, "unknown")
 336         sample_table(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
 337         if perf_db_export_calls:
 338                 call_path_table(0, 0, 0, 0)
 339
 340 unhandled_count = 0
 341
 342 def trace_end():
 343         print datetime.datetime.today(), "Copying to database..."
 344         copy_output_file(evsel_file,            "selected_events")
 345         copy_output_file(machine_file,          "machines")
 346         copy_output_file(thread_file,           "threads")
 347         copy_output_file(comm_file,             "comms")
 348         copy_output_file(comm_thread_file,      "comm_threads")
 349         copy_output_file(dso_file,              "dsos")
 350         copy_output_file(symbol_file,           "symbols")
 351         copy_output_file(branch_type_file,      "branch_types")
 352         copy_output_file(sample_file,           "samples")
 353         if perf_db_export_calls:
 354                 copy_output_file(call_path_file,        "call_paths")
 355                 copy_output_file(call_file,             "calls")
 356
 357         print datetime.datetime.today(), "Removing intermediate files..."
 358         remove_output_file(evsel_file)
 359         remove_output_file(machine_file)
 360         remove_output_file(thread_file)
 361         remove_output_file(comm_file)
 362         remove_output_file(comm_thread_file)
 363         remove_output_file(dso_file)
 364         remove_output_file(symbol_file)
 365         remove_output_file(branch_type_file)
 366         remove_output_file(sample_file)
 367         if perf_db_export_calls:
 368                 remove_output_file(call_path_file)
 369                 remove_output_file(call_file)
 370         os.rmdir(output_dir_name)
 371         print datetime.datetime.today(), "Adding primary keys"
 372         do_query(query, 'ALTER TABLE selected_events ADD PRIMARY KEY (id)')
 373         do_query(query, 'ALTER TABLE machines        ADD PRIMARY KEY (id)')
 374         do_query(query, 'ALTER TABLE threads         ADD PRIMARY KEY (id)')
 375         do_query(query, 'ALTER TABLE comms           ADD PRIMARY KEY (id)')
 376         do_query(query, 'ALTER TABLE comm_threads    ADD PRIMARY KEY (id)')
 377         do_query(query, 'ALTER TABLE dsos            ADD PRIMARY KEY (id)')
 378         do_query(query, 'ALTER TABLE symbols         ADD PRIMARY KEY (id)')
 379         do_query(query, 'ALTER TABLE branch_types    ADD PRIMARY KEY (id)')
 380         do_query(query, 'ALTER TABLE samples         ADD PRIMARY KEY (id)')
 381         if perf_db_export_calls:
 382                 do_query(query, 'ALTER TABLE call_paths      ADD PRIMARY KEY (id)')
 383                 do_query(query, 'ALTER TABLE calls           ADD PRIMARY KEY (id)')
 384
 385         print datetime.datetime.today(), "Adding foreign keys"
 386         do_query(query, 'ALTER TABLE threads '
 387                                         'ADD CONSTRAINT machinefk  FOREIGN KEY (machine_id)   REFERENCES machines   (id),'
 388                                         'ADD CONSTRAINT processfk  FOREIGN KEY (process_id)   REFERENCES threads    (id)')
 389         do_query(query, 'ALTER TABLE comm_threads '
 390                                         'ADD CONSTRAINT commfk     FOREIGN KEY (comm_id)      REFERENCES comms      (id),'
 391                                         'ADD CONSTRAINT threadfk   FOREIGN KEY (thread_id)    REFERENCES threads    (id)')
 392         do_query(query, 'ALTER TABLE dsos '
 393                                         'ADD CONSTRAINT machinefk  FOREIGN KEY (machine_id)   REFERENCES machines   (id)')
 394         do_query(query, 'ALTER TABLE symbols '
 395                                         'ADD CONSTRAINT dsofk      FOREIGN KEY (dso_id)       REFERENCES dsos       (id)')
 396         do_query(query, 'ALTER TABLE samples '
 397                                         'ADD CONSTRAINT evselfk    FOREIGN KEY (evsel_id)     REFERENCES selected_events (id),'
 398                                         'ADD CONSTRAINT machinefk  FOREIGN KEY (machine_id)   REFERENCES machines   (id),'
 399                                         'ADD CONSTRAINT threadfk   FOREIGN KEY (thread_id)    REFERENCES threads    (id),'
 400                                         'ADD CONSTRAINT commfk     FOREIGN KEY (comm_id)      REFERENCES comms      (id),'
 401                                         'ADD CONSTRAINT dsofk      FOREIGN KEY (dso_id)       REFERENCES dsos       (id),'
 402                                         'ADD CONSTRAINT symbolfk   FOREIGN KEY (symbol_id)    REFERENCES symbols    (id),'
 403                                         'ADD CONSTRAINT todsofk    FOREIGN KEY (to_dso_id)    REFERENCES dsos       (id),'
 404                                         'ADD CONSTRAINT tosymbolfk FOREIGN KEY (to_symbol_id) REFERENCES symbols    (id)')
 405         if perf_db_export_calls:
 406                 do_query(query, 'ALTER TABLE call_paths '
 407                                         'ADD CONSTRAINT parentfk    FOREIGN KEY (parent_id)    REFERENCES call_paths (id),'
 408                                         'ADD CONSTRAINT symbolfk    FOREIGN KEY (symbol_id)    REFERENCES symbols    (id)')
 409                 do_query(query, 'ALTER TABLE calls '
 410                                         'ADD CONSTRAINT threadfk    FOREIGN KEY (thread_id)    REFERENCES threads    (id),'
 411                                         'ADD CONSTRAINT commfk      FOREIGN KEY (comm_id)      REFERENCES comms      (id),'
 412                                         'ADD CONSTRAINT call_pathfk FOREIGN KEY (call_path_id) REFERENCES call_paths (id),'
 413                                         'ADD CONSTRAINT callfk      FOREIGN KEY (call_id)      REFERENCES samples    (id),'
 414                                         'ADD CONSTRAINT returnfk    FOREIGN KEY (return_id)    REFERENCES samples    (id),'
 415                                         'ADD CONSTRAINT parent_call_pathfk FOREIGN KEY (parent_call_path_id) REFERENCES call_paths (id)')
 416                 do_query(query, 'CREATE INDEX pcpid_idx ON calls (parent_call_path_id)')
 417
 418         if (unhandled_count):
 419                 print datetime.datetime.today(), "Warning: ", unhandled_count, " unhandled events"
 420         print datetime.datetime.today(), "Done"
 421
 422 def trace_unhandled(event_name, context, event_fields_dict):
 423         global unhandled_count
 424         unhandled_count += 1
 425
 426 def sched__sched_switch(*x):
 427         pass
 428
 429 def evsel_table(evsel_id, evsel_name, *x):
 430         n = len(evsel_name)
 431         fmt = "!hiqi" + str(n) + "s"
 432         value = struct.pack(fmt, 2, 8, evsel_id, n, evsel_name)
 433         evsel_file.write(value)
 434
 435 def machine_table(machine_id, pid, root_dir, *x):
 436         n = len(root_dir)
 437         fmt = "!hiqiii" + str(n) + "s"
 438         value = struct.pack(fmt, 3, 8, machine_id, 4, pid, n, root_dir)
 439         machine_file.write(value)
 440
 441 def thread_table(thread_id, machine_id, process_id, pid, tid, *x):
 442         value = struct.pack("!hiqiqiqiiii", 5, 8, thread_id, 8, machine_id, 8, process_id, 4, pid, 4, tid)
 443         thread_file.write(value)
 444
 445 def comm_table(comm_id, comm_str, *x):
 446         n = len(comm_str)
 447         fmt = "!hiqi" + str(n) + "s"
 448         value = struct.pack(fmt, 2, 8, comm_id, n, comm_str)
 449         comm_file.write(value)
 450
 451 def comm_thread_table(comm_thread_id, comm_id, thread_id, *x):
 452         fmt = "!hiqiqiq"
 453         value = struct.pack(fmt, 3, 8, comm_thread_id, 8, comm_id, 8, thread_id)
 454         comm_thread_file.write(value)
 455
 456 def dso_table(dso_id, machine_id, short_name, long_name, build_id, *x):
 457         n1 = len(short_name)
 458         n2 = len(long_name)
 459         n3 = len(build_id)
 460         fmt = "!hiqiqi" + str(n1) + "si"  + str(n2) + "si" + str(n3) + "s"
 461         value = struct.pack(fmt, 5, 8, dso_id, 8, machine_id, n1, short_name, n2, long_name, n3, build_id)
 462         dso_file.write(value)
 463
 464 def symbol_table(symbol_id, dso_id, sym_start, sym_end, binding, symbol_name, *x):
 465         n = len(symbol_name)
 466         fmt = "!hiqiqiqiqiii" + str(n) + "s"
 467         value = struct.pack(fmt, 6, 8, symbol_id, 8, dso_id, 8, sym_start, 8, sym_end, 4, binding, n, symbol_name)
 468         symbol_file.write(value)
 469
 470 def branch_type_table(branch_type, name, *x):
 471         n = len(name)
 472         fmt = "!hiii" + str(n) + "s"
 473         value = struct.pack(fmt, 2, 4, branch_type, n, name)
 474         branch_type_file.write(value)
 475
 476 def sample_table(sample_id, evsel_id, machine_id, thread_id, comm_id, dso_id, symbol_id, sym_offset, ip, time, cpu, to_dso_id, to_symbol_id, to_sym_offset, to_ip, period, weight, transaction, data_src, branch_type, in_tx, *x):
 477         if branches:
 478                 value = struct.pack("!hiqiqiqiqiqiqiqiqiqiqiiiqiqiqiqiiiB", 17, 8, sample_id, 8, evsel_id, 8, machine_id, 8, thread_id, 8, comm_id, 8, dso_id, 8, symbol_id, 8, sym_offset, 8, ip, 8, time, 4, cpu, 8, to_dso_id, 8, to_symbol_id, 8, to_sym_offset, 8, to_ip, 4, branch_type, 1, in_tx)
 479         else:
 480                 value = struct.pack("!hiqiqiqiqiqiqiqiqiqiqiiiqiqiqiqiqiqiqiqiiiB", 21, 8, sample_id, 8, evsel_id, 8, machine_id, 8, thread_id, 8, comm_id, 8, dso_id, 8, symbol_id, 8, sym_offset, 8, ip, 8, time, 4, cpu, 8, to_dso_id, 8, to_symbol_id, 8, to_sym_offset, 8, to_ip, 8, period, 8, weight, 8, transaction, 8, data_src, 4, branch_type, 1, in_tx)
 481         sample_file.write(value)
 482
 483 def call_path_table(cp_id, parent_id, symbol_id, ip, *x):
 484         fmt = "!hiqiqiqiq"
 485         value = struct.pack(fmt, 4, 8, cp_id, 8, parent_id, 8, symbol_id, 8, ip)
 486         call_path_file.write(value)
 487
 488 def call_return_table(cr_id, thread_id, comm_id, call_path_id, call_time, return_time, branch_count, call_id, return_id, parent_call_path_id, flags, *x):
 489         fmt = "!hiqiqiqiqiqiqiqiqiqiqii"
 490         value = struct.pack(fmt, 11, 8, cr_id, 8, thread_id, 8, comm_id, 8, call_path_id, 8, call_time, 8, return_time, 8, branch_count, 8, call_id, 8, return_id, 8, parent_call_path_id, 4, flags)
 491         call_file.write(value)