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perf script python: Add support for sqlite3 to call-graph-from-sql.py

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Add support for SQLite 3 to the call-graph-from-sql.py script. The SQL
statements work as is, so just detect the database type by checking if the
SQLite 3 file exists.

Committer notes:

Tested collecting the PT data on a RHEL7.4, generating the SQLite3
database there and then moving it to a Fedora 26 system where the
call-graph-from-sql.py script was run, using python-pyside version
1.2.2-7fc26 to see the callgraphs using Qt4.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/1501749090-20357-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2017-08-03 11:31:30 +03:00 committed by Arnaldo Carvalho de Melo
parent 69e6e410f1
commit 1fe03b5f2d
1 changed files with 35 additions and 23 deletions
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58
tools/perf/scripts/python/call-graph-from-sql.py
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@ -1,5 +1,5 @@
#!/usr/bin/python2
# call-graph-from-sql.py: create call-graph from postgresql database
# 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
@ -11,16 +11,17 @@
# 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-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-sql.py "hostname=myhost username=myuser password=mypassword dbname=pt_example"
#
@ -296,24 +297,35 @@ if __name__ == '__main__':
dbname = sys.argv[1]
db = QSqlDatabase.addDatabase('QPSQL')
is_sqlite3 = False
try:
f = open(dbname)
if f.read(15) == "SQLite format 3":
is_sqlite3 = True
f.close()
except:
pass
opts = dbname.split()
for opt in opts:
if '=' in opt:
opt = opt.split('=')
if opt[0] == 'hostname':
db.setHostName(opt[1])
elif opt[0] == 'port':
db.setPort(int(opt[1]))
elif opt[0] == 'username':
db.setUserName(opt[1])
elif opt[0] == 'password':
db.setPassword(opt[1])
elif opt[0] == 'dbname':
dbname = opt[1]
else:
dbname = opt
if is_sqlite3:
db = QSqlDatabase.addDatabase('QSQLITE')
else:
db = QSqlDatabase.addDatabase('QPSQL')
opts = dbname.split()
for opt in opts:
if '=' in opt:
opt = opt.split('=')
if opt[0] == 'hostname':
db.setHostName(opt[1])
elif opt[0] == 'port':
db.setPort(int(opt[1]))
elif opt[0] == 'username':
db.setUserName(opt[1])
elif opt[0] == 'password':
db.setPassword(opt[1])
elif opt[0] == 'dbname':
dbname = opt[1]
else:
dbname = opt
db.setDatabaseName(dbname)
if not db.open():