Commit 56789f3d authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

perf scripts python: export-to-postgresql.py: Export switch events 



Export switch events to a new table 'context_switches' and create a view
'context_switches_view'. The table and view will show automatically in the
exported-sql-viewer.py script.

If the table ends up empty, then it and the view are dropped.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190710085810.1650-22-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 37c1f991

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

+51 −0
Original line number Diff line number Diff line
@@ -482,6 +482,17 @@ do_query(query, 'CREATE TABLE pwrx (' 
	'last_cstate	integer,'

	'wake_reason	integer)')



do_query(query, 'CREATE TABLE context_switches ('

		'id		bigint		NOT NULL,'

		'machine_id	bigint,'

		'time		bigint,'

		'cpu		integer,'

		'thread_out_id	bigint,'

		'comm_out_id	bigint,'

		'thread_in_id	bigint,'

		'comm_in_id	bigint,'

		'flags		integer)')



do_query(query, 'CREATE VIEW machines_view AS '

	'SELECT '

		'id,'
@@ -695,6 +706,29 @@ do_query(query, 'CREATE VIEW power_events_view AS ' 
	' INNER JOIN selected_events ON selected_events.id = samples.evsel_id'

	' ORDER BY samples.id')



do_query(query, 'CREATE VIEW context_switches_view AS '

	'SELECT '

		'context_switches.id,'

		'context_switches.machine_id,'

		'context_switches.time,'

		'context_switches.cpu,'

		'th_out.pid AS pid_out,'

		'th_out.tid AS tid_out,'

		'comm_out.comm AS comm_out,'

		'th_in.pid AS pid_in,'

		'th_in.tid AS tid_in,'

		'comm_in.comm AS comm_in,'

		'CASE	  WHEN context_switches.flags = 0 THEN \'in\''

			' WHEN context_switches.flags = 1 THEN \'out\''

			' WHEN context_switches.flags = 3 THEN \'out preempt\''

			' ELSE CAST ( context_switches.flags AS VARCHAR(11) )'

		'END AS flags'

	' FROM context_switches'

	' INNER JOIN threads AS th_out ON th_out.id   = context_switches.thread_out_id'

	' INNER JOIN threads AS th_in  ON th_in.id    = context_switches.thread_in_id'

	' INNER JOIN comms AS comm_out ON comm_out.id = context_switches.comm_out_id'

	' INNER JOIN comms AS comm_in  ON comm_in.id  = context_switches.comm_in_id')



file_header = struct.pack("!11sii", b"PGCOPY\n\377\r\n\0", 0, 0)

file_trailer = b"\377\377"
@@ -759,6 +793,7 @@ mwait_file = open_output_file("mwait_table.bin") 
pwre_file		= open_output_file("pwre_table.bin")

exstop_file		= open_output_file("exstop_table.bin")

pwrx_file		= open_output_file("pwrx_table.bin")

context_switches_file	= open_output_file("context_switches_table.bin")



def trace_begin():

	printdate("Writing to intermediate files...")
@@ -807,6 +842,7 @@ def trace_end(): 
	copy_output_file(pwre_file,		"pwre")

	copy_output_file(exstop_file,		"exstop")

	copy_output_file(pwrx_file,		"pwrx")

	copy_output_file(context_switches_file,	"context_switches")



	printdate("Removing intermediate files...")

	remove_output_file(evsel_file)
@@ -828,6 +864,7 @@ def trace_end(): 
	remove_output_file(pwre_file)

	remove_output_file(exstop_file)

	remove_output_file(pwrx_file)

	remove_output_file(context_switches_file)

	os.rmdir(output_dir_name)

	printdate("Adding primary keys")

	do_query(query, 'ALTER TABLE selected_events ADD PRIMARY KEY (id)')
@@ -849,6 +886,7 @@ def trace_end(): 
	do_query(query, 'ALTER TABLE pwre            ADD PRIMARY KEY (id)')

	do_query(query, 'ALTER TABLE exstop          ADD PRIMARY KEY (id)')

	do_query(query, 'ALTER TABLE pwrx            ADD PRIMARY KEY (id)')

	do_query(query, 'ALTER TABLE context_switches ADD PRIMARY KEY (id)')



	printdate("Adding foreign keys")

	do_query(query, 'ALTER TABLE threads '
@@ -900,6 +938,12 @@ def trace_end(): 
					'ADD CONSTRAINT idfk        FOREIGN KEY (id)           REFERENCES samples   (id)')

	do_query(query, 'ALTER TABLE  pwrx '

					'ADD CONSTRAINT idfk        FOREIGN KEY (id)           REFERENCES samples   (id)')

	do_query(query, 'ALTER TABLE  context_switches '

					'ADD CONSTRAINT machinefk   FOREIGN KEY (machine_id)    REFERENCES machines (id),'

					'ADD CONSTRAINT toutfk      FOREIGN KEY (thread_out_id) REFERENCES threads  (id),'

					'ADD CONSTRAINT tinfk       FOREIGN KEY (thread_in_id)  REFERENCES threads  (id),'

					'ADD CONSTRAINT coutfk      FOREIGN KEY (comm_out_id)   REFERENCES comms    (id),'

					'ADD CONSTRAINT cinfk       FOREIGN KEY (comm_in_id)    REFERENCES comms    (id)')



	printdate("Dropping unused tables")

	if is_table_empty("ptwrite"):
@@ -912,6 +956,8 @@ def trace_end(): 
		drop("pwrx")

		if is_table_empty("cbr"):

			drop("cbr")

	if is_table_empty("context_switches"):

		drop("context_switches")



	if (unhandled_count):

		printdate("Warning: ", unhandled_count, " unhandled events")
@@ -1058,3 +1104,8 @@ def synth_data(id, config, raw_buf, *x): 
		pwrx(id, raw_buf)

	elif config == 5:

		cbr(id, raw_buf)



def context_switch_table(id, machine_id, time, cpu, thread_out_id, comm_out_id, thread_in_id, comm_in_id, flags, *x):

	fmt = "!hiqiqiqiiiqiqiqiqii"

	value = struct.pack(fmt, 9, 8, id, 8, machine_id, 8, time, 4, cpu, 8, thread_out_id, 8, comm_out_id, 8, thread_in_id, 8, comm_in_id, 4, flags)

	context_switches_file.write(value)

CRA Git | Maintained and supported by SUSTech CRA and CCSE