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Subject[tip:perf/urgent] perf script python: add Python3 support to check-perf-trace.py
Commit-ID:  57e604b16362273af6a517abaa6cd1133a7fc732
Gitweb: https://git.kernel.org/tip/57e604b16362273af6a517abaa6cd1133a7fc732
Author: Tony Jones <tonyj@suse.de>
AuthorDate: Fri, 1 Mar 2019 17:18:59 -0800
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 6 Mar 2019 18:10:46 -0300

perf script python: add Python3 support to check-perf-trace.py

Support both Python 2 and Python 3 in the check-perf-trace.py script.

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc. However the format within lines
should be unchanged.

The use of from __future__ implies the minimum supported version of
Python2 is now v2.6

Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Tom Zanussi <tzanussi@gmail.com>
Link: http://lkml.kernel.org/r/20190302011903.2416-4-tonyj@suse.de
Signed-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/scripts/python/check-perf-trace.py | 31 +++++++++++++++------------
1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/tools/perf/scripts/python/check-perf-trace.py b/tools/perf/scripts/python/check-perf-trace.py
index f4838db3e518..d2c22954800d 100644
--- a/tools/perf/scripts/python/check-perf-trace.py
+++ b/tools/perf/scripts/python/check-perf-trace.py
@@ -7,6 +7,8 @@
# events, etc. Basically, if this script runs successfully and
# displays expected results, Python scripting support should be ok.

+from __future__ import print_function
+
import os
import sys

@@ -19,7 +21,7 @@ from perf_trace_context import *
unhandled = autodict()

def trace_begin():
- print "trace_begin"
+ print("trace_begin")
pass

def trace_end():
@@ -33,7 +35,7 @@ def irq__softirq_entry(event_name, context, common_cpu,

print_uncommon(context)

- print "vec=%s\n" % (symbol_str("irq__softirq_entry", "vec", vec)),
+ print("vec=%s" % (symbol_str("irq__softirq_entry", "vec", vec)))

def kmem__kmalloc(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
@@ -44,10 +46,10 @@ def kmem__kmalloc(event_name, context, common_cpu,

print_uncommon(context)

- print "call_site=%u, ptr=%u, bytes_req=%u, " \
- "bytes_alloc=%u, gfp_flags=%s\n" % \
+ print("call_site=%u, ptr=%u, bytes_req=%u, "
+ "bytes_alloc=%u, gfp_flags=%s" %
(call_site, ptr, bytes_req, bytes_alloc,
- flag_str("kmem__kmalloc", "gfp_flags", gfp_flags)),
+ flag_str("kmem__kmalloc", "gfp_flags", gfp_flags)))

def trace_unhandled(event_name, context, event_fields_dict):
try:
@@ -56,26 +58,27 @@ def trace_unhandled(event_name, context, event_fields_dict):
unhandled[event_name] = 1

def print_header(event_name, cpu, secs, nsecs, pid, comm):
- print "%-20s %5u %05u.%09u %8u %-20s " % \
+ print("%-20s %5u %05u.%09u %8u %-20s " %
(event_name, cpu, secs, nsecs, pid, comm),
+ end=' ')

# print trace fields not included in handler args
def print_uncommon(context):
- print "common_preempt_count=%d, common_flags=%s, " \
- "common_lock_depth=%d, " % \
+ print("common_preempt_count=%d, common_flags=%s, "
+ "common_lock_depth=%d, " %
(common_pc(context), trace_flag_str(common_flags(context)),
- common_lock_depth(context))
+ common_lock_depth(context)))

def print_unhandled():
keys = unhandled.keys()
if not keys:
return

- print "\nunhandled events:\n\n",
+ print("\nunhandled events:\n")

- print "%-40s %10s\n" % ("event", "count"),
- print "%-40s %10s\n" % ("----------------------------------------", \
- "-----------"),
+ print("%-40s %10s" % ("event", "count"))
+ print("%-40s %10s" % ("----------------------------------------",
+ "-----------"))

for event_name in keys:
- print "%-40s %10d\n" % (event_name, unhandled[event_name])
+ print("%-40s %10d\n" % (event_name, unhandled[event_name]))
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