Merge tag 'perf-core-for-mingo-4.14-20170816' of...

in transaction, respectively.

While it is possible to create scripts to analyze the data, an alternative

approach is available to export the data to a postgresql database.  Refer to

script export-to-postgresql.py for more details, and to script

call-graph-from-postgresql.py for an example of using the database.

approach is available to export the data to a sqlite or postgresql database.

Refer to script export-to-sqlite.py or export-to-postgresql.py for more details,

and to script call-graph-from-sql.py for an example of using the database.

There is also script intel-pt-events.py which provides an example of how to

unpack the raw data for power events and PTWRITE.

#!/bin/bash

#

# export perf data to a sqlite3 database. Can cover

# perf ip samples (excluding the tracepoints). No special

# record requirements, just record what you want to export.

#

perf record $@

#!/bin/bash

# description: export perf data to a sqlite3 database

# args: [database name] [columns] [calls]

n_args=0

for i in "$@"

do

    if expr match "$i" "-" > /dev/null ; then

	break

    fi

    n_args=$(( $n_args + 1 ))

done

if [ "$n_args" -gt 3 ] ; then

    echo "usage: export-to-sqlite-report [database name] [columns] [calls]"

    exit

fi

if [ "$n_args" -gt 2 ] ; then

    dbname=$1

    columns=$2

    calls=$3

    shift 3

elif [ "$n_args" -gt 1 ] ; then

    dbname=$1

    columns=$2

    shift 2

elif [ "$n_args" -gt 0 ] ; then

    dbname=$1

    shift

fi

perf script $@ -s "$PERF_EXEC_PATH"/scripts/python/export-to-sqlite.py $dbname $columns $calls

#!/usr/bin/python2

# call-graph-from-postgresql.py: create call-graph from postgresql database

# Copyright (c) 2014, Intel Corporation.

# call-graph-from-sql.py: create call-graph from sql database

# Copyright (c) 2014-2017, Intel Corporation.

#

# This program is free software; you can redistribute it and/or modify it

# under the terms and conditions of the GNU General Public License,

# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

# more details.

# To use this script you will need to have exported data using the

# export-to-postgresql.py script.  Refer to that script for details.

# To use this script you will need to have exported data using either the

# export-to-sqlite.py or the export-to-postgresql.py script.  Refer to those

# scripts for details.

#

# Following on from the example in the export-to-postgresql.py script, a

# Following on from the example in the export scripts, a

# call-graph can be displayed for the pt_example database like this:

#

#	python tools/perf/scripts/python/call-graph-from-postgresql.py pt_example

#	python tools/perf/scripts/python/call-graph-from-sql.py pt_example

#

# Note this script supports connecting to remote databases by setting hostname,

# port, username, password, and dbname e.g.

# Note that for PostgreSQL, this script supports connecting to remote databases

# by setting hostname, port, username, password, and dbname e.g.

#

#	python tools/perf/scripts/python/call-graph-from-postgresql.py "hostname=myhost username=myuser password=mypassword dbname=pt_example"

#	python tools/perf/scripts/python/call-graph-from-sql.py "hostname=myhost username=myuser password=mypassword dbname=pt_example"

#

# The result is a GUI window with a tree representing a context-sensitive

# call-graph.  Expanding a couple of levels of the tree and adjusting column

if __name__ == '__main__':

	if (len(sys.argv) < 2):

		print >> sys.stderr, "Usage is: call-graph-from-postgresql.py <database name>"

		print >> sys.stderr, "Usage is: call-graph-from-sql.py <database name>"

		raise Exception("Too few arguments")

	dbname = sys.argv[1]

	is_sqlite3 = False

	try:

		f = open(dbname)

		if f.read(15) == "SQLite format 3":

			is_sqlite3 = True

		f.close()

	except:

		pass

	if is_sqlite3:

		db = QSqlDatabase.addDatabase('QSQLITE')

	else:

		db = QSqlDatabase.addDatabase('QPSQL')

		opts = dbname.split()

		for opt in opts:

			if '=' in opt:

#	pt_example=# \q

#

# An example of using the database is provided by the script

# call-graph-from-postgresql.py.  Refer to that script for details.

# call-graph-from-sql.py.  Refer to that script for details.

#

# Tables:

#

		'to_sym_offset	bigint,'

		'to_ip		bigint,'

		'branch_type	integer,'

		'in_tx		boolean)')

		'in_tx		boolean,'

		'call_path_id	bigint)')

else:

	do_query(query, 'CREATE TABLE samples ('

		'id		bigint		NOT NULL,'