perf python: Clean up pylint warnings in twatch.py

Clean up pylint warnings in twatch.py so that it passes pylint without
warning suppression comments:
- Convert tab indentation to 4 spaces (W0311: bad-indentation).
- Remove unnecessary trailing semicolon (W0301: unnecessary-semicolon)
  after evsel.open().
- Convert floating multi-line string comments to '#' comments (W0105:
  pointless-string-statement).

Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 39 insertions, 41 deletions

diff --git a/tools/perf/python/twatch.py b/tools/perf/python/twatch.py
index 04f3db29b9bc..ad35b1620781 100755
--- a/tools/perf/python/twatch.py
+++ b/tools/perf/python/twatch.py
@@ -9,53 +9,51 @@
 import perf
 
 def main(context_switch = 0, thread = -1):
-	cpus = perf.cpu_map()
-	threads = perf.thread_map(thread)
-	evsel = perf.evsel(type	  = perf.TYPE_SOFTWARE,
-			   config = perf.COUNT_SW_DUMMY,
-			   task = 1, comm = 1, mmap = 0, freq = 0,
-			   wakeup_events = 1, watermark = 1,
-			   sample_id_all = 1, context_switch = context_switch,
-			   sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU)
-
-	"""What we want are just the PERF_RECORD_ lifetime events for threads,
-	 using the default, PERF_TYPE_HARDWARE + PERF_COUNT_HW_CYCLES & freq=1
-	 (the default), makes perf reenable irq_vectors:local_timer_entry, when
-	 disabling nohz, not good for some use cases where all we want is to get
-	 threads comes and goes... So use (perf.TYPE_SOFTWARE, perf_COUNT_SW_DUMMY,
-	 freq=0) instead."""
-
-	evsel.open(cpus = cpus, threads = threads);
-	evlist = perf.evlist(cpus, threads)
-	evlist.add(evsel)
-	evlist.mmap()
-	while True:
-		evlist.poll(timeout = -1)
-		for cpu in cpus:
-			event = evlist.read_on_cpu(cpu)
-			if not event:
-				continue
-			print("cpu: {0}, pid: {1}, tid: {2} {3}".format(event.sample_cpu,
+    cpus = perf.cpu_map()
+    threads = perf.thread_map(thread)
+    evsel = perf.evsel(type	  = perf.TYPE_SOFTWARE,
+               config = perf.COUNT_SW_DUMMY,
+               task = 1, comm = 1, mmap = 0, freq = 0,
+               wakeup_events = 1, watermark = 1,
+               sample_id_all = 1, context_switch = context_switch,
+               sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU)
+
+    # What we want are just the PERF_RECORD_ lifetime events for threads,
+    # using the default, PERF_TYPE_HARDWARE + PERF_COUNT_HW_CYCLES & freq=1
+    # (the default), makes perf reenable irq_vectors:local_timer_entry, when
+    # disabling nohz, not good for some use cases where all we want is to get
+    # threads comes and goes... So use (perf.TYPE_SOFTWARE, perf_COUNT_SW_DUMMY,
+    # freq=0) instead.
+
+    evsel.open(cpus = cpus, threads = threads)
+    evlist = perf.evlist(cpus, threads)
+    evlist.add(evsel)
+    evlist.mmap()
+    while True:
+        evlist.poll(timeout = -1)
+        for cpu in cpus:
+            event = evlist.read_on_cpu(cpu)
+            if not event:
+                continue
+            print("cpu: {0}, pid: {1}, tid: {2} {3}".format(event.sample_cpu,
                                                                         event.sample_pid,
                                                                         event.sample_tid,
                                                                         event))
 
 if __name__ == '__main__':
-    """
-	To test the PERF_RECORD_SWITCH record, pick a pid and replace
-	in the following line.
+    #     To test the PERF_RECORD_SWITCH record, pick a pid and replace
+    # in the following line.
 
-	Example output:
+    # Example output:
 
-cpu: 3, pid: 31463, tid: 31593 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31593, switch_out: 1 }
-cpu: 1, pid: 31463, tid: 31489 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31489, switch_out: 1 }
-cpu: 2, pid: 31463, tid: 31496 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31496, switch_out: 1 }
-cpu: 3, pid: 31463, tid: 31491 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31491, switch_out: 0 }
+    # cpu: 3, pid: 31463, tid: 31593 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31593, switch_out: 1 }
+    # cpu: 1, pid: 31463, tid: 31489 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31489, switch_out: 1 }
+    # cpu: 2, pid: 31463, tid: 31496 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31496, switch_out: 1 }
+    # cpu: 3, pid: 31463, tid: 31491 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31491, switch_out: 0 }
+    #
+    # It is possible as well to use event.misc & perf.PERF_RECORD_MISC_SWITCH_OUT
+    # to figure out if this is a context switch in or out of the monitored threads.
 
-	It is possible as well to use event.misc & perf.PERF_RECORD_MISC_SWITCH_OUT
-	to figure out if this is a context switch in or out of the monitored threads.
-
-	If bored, please add command line option parsing support for these options :-)
-    """
-    # main(context_switch = 1, thread = 31463)
+    # If bored, please add command line option parsing support for these options :-)
+    #     # main(context_switch = 1, thread = 31463)
     main()