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fix(perf2trace): support 0 length duration, nicer table

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This commit is contained in:
Maarten A. Breddels 2021-01-06 19:57:51 +01:00
parent 1ea287ec23
commit 43d9d470fc
1 changed files with 8 additions and 3 deletions
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11
per4m/perf2trace.py
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@ -3,6 +3,7 @@ from collections import defaultdict
import json
import re
import sys
import math
import tabulate
@ -256,20 +257,24 @@ def gil2trace(input, verbose=1, take_probe="python:take_gil$", take_probe_return
wait = time_wait_gil[pid]
on_gil = time_on_gil[pid]
no_gil = total - wait - on_gil
row = [pid, total, no_gil/total*100, on_gil/total*100, wait/total * 100]
row = [pid if pid != parent_pid else f'{pid}*', total]
if total == 0:
row += [math.inf, math.inf, math.inf]
else:
row += [no_gil/total*100, on_gil/total*100, wait/total * 100]
if verbose >= 2:
row.extend([no_gil, on_gil, wait])
table.append(row)
headers = ['PID', 'total(us)', 'no gil%✅', 'has gil%❗', 'gil wait%❌']
if verbose:
headers.extend(['no gil(us)', 'has gil(us)', 'gil wait(us)'])
table = tabulate.tabulate(table, headers)
table = tabulate.tabulate(table, headers, floatfmt=".1f")
print()
print("Summary of threads:")
print()
print(table)
print()
print("High 'no gil' is good (✅), we like low 'has gil' (❗),\n and we don't want 'gil wait' (❌).")
print("High 'no gil' is good (✅), we like low 'has gil' (❗),\n and we don't want 'gil wait' (❌). (* indicates main thread)")
print()