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==1275635== Memcheck, a memory error detector | |
==1275635== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al. | |
==1275635== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info | |
==1275635== Command: ./Programs/_testembed test_repeated_simple_init | |
==1275635== Parent PID: 1251833 | |
==1275635== | |
==1275635== | |
==1275635== HEAP SUMMARY: | |
==1275635== in use at exit: 5,882,804 bytes in 114,206 blocks | |
==1275635== total heap usage: 1,266,263 allocs, 1,152,057 frees, 154,833,783 bytes allocated |
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# script to generate GC summary from statistics gathered with | |
# https://github.com/python/cpython/pull/100958 | |
import sys | |
import pandas as pd | |
import numpy as np | |
import argparse | |
def get_gc_summary(df): |
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Why is considered a security bug? | |
--------------------------------- | |
Or, certain computing operations can take a long time, depending on the size of | |
input data. Why is this specific issue considered a security bug? | |
It is quite common for Python code implementing network protocols and data | |
serialization to do int(untrusted_string_or_bytes_value) on input to get a | |
numeric value, without having limited the input length or to do log("processing | |
thing id %s", unknowingly_huge_integer) or any similar concept to convert an |
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def _str_to_int_inner(s): | |
DIGLIM = 2048 | |
w5pow = {} | |
w = len(s) | |
while w >= DIGLIM: | |
w2 = w >> 1 | |
if w & 1: | |
w5pow[w2 + 1] = None | |
w5pow[w2] = None |
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/* In-place path normalisation. Returns the start of the normalized | |
path, which will be within the original buffer. Guaranteed to not | |
make the path longer, and will not fail. 'size' is the length of | |
the path, if known. If -1, the first null character will be assumed | |
to be the end of the path. */ | |
wchar_t * | |
_Py_normpath(wchar_t *path, Py_ssize_t size) | |
{ | |
if (!path[0] || size == 0) { | |
return path; |
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From 57b03a632906c762c84316d39fb7eddc7eff9145 Mon Sep 17 00:00:00 2001 | |
From: Neil Schemenauer <nas@arctrix.com> | |
Date: Thu, 21 Oct 2021 08:10:41 -0700 | |
Subject: [PATCH] Remove use of ifeq in Makefile. | |
--- | |
Makefile.pre.in | 48 ++++++++++++++++++++---------------------------- | |
configure | 7 +++++-- | |
configure.ac | 3 ++- | |
3 files changed, 27 insertions(+), 31 deletions(-) |
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bench-py-base.json | |
================== | |
Performance version: 1.0.2 | |
Report on Linux-5.10.0-8-amd64-x86_64-with-glibc2.31 | |
Number of logical CPUs: 4 | |
Start date: 2021-10-18 20:07:44.427781 | |
End date: 2021-10-18 20:26:28.404799 | |
bench-py-mimalloc.json |
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#!/bin/sh | |
# Embedded archive in shell script. | |
# To create script: | |
# cat <this script>.sh <archive file> > <script>.run | |
# chmod +x <script>.run | |
archive () { | |
# lines of script to skip (computed automatically) | |
skip=$(awk '/^__ARCHIVE_FOLLOWS__/ { print NR + 1; exit 0; }' $0) | |
tail -n +${skip} $0 |
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py-base | |
======= | |
Performance version: 0.6.1 | |
Report on Linux-4.9.0-4-amd64-x86_64-with-debian-buster-sid | |
Number of logical CPUs: 4 | |
Start date: 2017-12-02 17:30:30.244152 | |
End date: 2017-12-02 17:37:46.889962 | |
py-unwind |
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0 python(6402): => <module> in <frozen importlib._bootstrap>:25 | |
11 python(6402): => _DeadlockError in <frozen importlib._bootstrap>:48 | |
14 python(6402): <= _DeadlockError in <frozen importlib._bootstrap>:49 | |
43 python(6402): => _ModuleLock in <frozen importlib._bootstrap>:52 | |
46 python(6402): <= _ModuleLock in <frozen importlib._bootstrap>:116 | |
64 python(6402): => _DummyModuleLock in <frozen importlib._bootstrap>:120 | |
66 python(6402): <= _DummyModuleLock in <frozen importlib._bootstrap>:137 | |
80 python(6402): => _ModuleLockManager in <frozen importlib._bootstrap>:141 | |
82 python(6402): <= _ModuleLockManager in <frozen importlib._bootstrap>:151 | |
97 python(6402): => _installed_safely in <frozen importlib._bootstrap>:305 |
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