[diffoscope] 01/02: Revert "Print top memory allocations when receiving USR1"

[Jérémy Bobbio]

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lunar pushed a commit to branch master
in repository diffoscope.

commit 8021d2b14bbc832e6c63469f3df2de607f256001
Author: Jérémy Bobbio <lunar at debian.org>
Date:   Mon Jan 4 16:24:04 2016 +0100

    Revert "Print top memory allocations when receiving USR1"
    
    This reverts commit 4530f664a0cf6e9cef13b3b0bc9f7bcdd23144b9.
    
    Tracing memory allocation is probably costly, so better not ship it in a release.
---
 diffoscope/__main__.py | 37 -------------------------------------
 1 file changed, 37 deletions(-)

diff --git a/diffoscope/__main__.py b/diffoscope/__main__.py
index 09382af..ac7913c 100644
--- a/diffoscope/__main__.py
+++ b/diffoscope/__main__.py
@@ -20,14 +20,12 @@
 
 import argparse
 from contextlib import contextmanager
-import linecache
 import logging
 import codecs
 import os
 import signal
 import sys
 import traceback
-import tracemalloc
 try:
     import tlsh
 except ImportError:
@@ -164,53 +162,18 @@ def run_diffoscope(parsed_args):
     return 0
 
 
-def display_top(snapshot, group_by='lineno', limit=10):
-    snapshot = snapshot.filter_traces((
-        tracemalloc.Filter(False, "<frozen importlib._bootstrap>"),
-        tracemalloc.Filter(False, "<unknown>"),
-    ))
-    top_stats = snapshot.statistics(group_by)
-
-    logger.debug("Top %s lines", limit)
-    for index, stat in enumerate(top_stats[:limit], 1):
-        frame = stat.traceback[0]
-        # replace "/path/to/module/file.py" with "module/file.py"
-        filename = os.sep.join(frame.filename.split(os.sep)[-2:])
-        logger.debug("#%s: %s:%s: %.1f KiB",
-                     index, filename, frame.lineno, stat.size / 1024)
-        line = linecache.getline(frame.filename, frame.lineno).strip()
-        if line:
-            logger.debug('    %s', line)
-
-    other = top_stats[limit:]
-    if other:
-        size = sum(stat.size for stat in other)
-        logger.debug("%s other: %.1f KiB", len(other), size / 1024)
-    total = sum(stat.size for stat in top_stats)
-    logger.debug("Total allocated size: %.1f KiB", total / 1024)
-
-
 def sigterm_handler(signo, stack_frame):
     sys.exit(2)
 
 
-def sigusr1_handler(signo, stack_frame):
-    logger.debug('got SIGUSR1')
-    snapshot = tracemalloc.take_snapshot()
-    logger.debug('display_top')
-    display_top(snapshot)
-
-
 def main(args=None):
     if args is None:
         args = sys.argv[1:]
     signal.signal(signal.SIGTERM, sigterm_handler)
-    signal.signal(signal.SIGUSR1, sigusr1_handler)
     parsed_args = None
     try:
         parser = create_parser()
         parsed_args = parser.parse_args(args)
-        tracemalloc.start()
         sys.exit(run_diffoscope(parsed_args))
     except KeyboardInterrupt:
         logger.info('Keyboard Interrupt')

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