Reason for ~100x slowdown with heap memory functions using HEAP_NO_SERIALIZE on Windows Vista and Windows 7

I'm trying to tracedown a huge slowdown in the heap memory functions in Windows Vista and Windows 7 (I didn't test on any server editions). It doesn't happen on Windows XP at all, only on...

load testing website. What is needed?

We are about to release an ASP.net MVC website in the near future. Im wrapping up functionality testing and now onto performance and load testing. My question is how much load testing is...

Getting first / last date of the week

Is it possible to get the first / last date of a week using PHP's Relative Date Time format? I've tried to do: date_default_timezone_set('Europe/Amsterdam'); $date = new...

How can I detect a rightmouse button event on mousedown?

I am updating/debugging and expanding the capabilities of my draggable script and I need to be able to achieve the following result: whatever.onRightMouseButtonMousedown = preventDefault(); I...

Is it possible to send data between two browsers on different machines (but on same WLAN) using no servers?

Ultimately what I would like to to is build a Javascript app that runs in the browser, and is able to communicate to other users running the same Javascript app on other machines within the same...

Ways to iterate over a list in Java

Being somewhat new to the Java language I'm trying to familiarize myself with all the ways (or at least the non-pathological ones) that one might iterate through a list (or perhaps other...

Binding to data breaking on VirtualizingStackPanel

First of all, a disclaimer, I'm working with .net 3.5's virtualizingstackpanel. If you get different behavior in future versions let me know. It's relatively simple to set up a test case with...

Documentation for PyCFunction_New / PyCFunction_NewEx

I'm struggling to understand some PyCXX code (C++ Python wrapper) that revolves around PyCFunction_New. Could someone explain how this function works? (I can't figure it out from the CPython...

How to fix the Dropping Close since the SSL connection is already closing error in spray

I’m making a call to an API, but most of the time I keep getting an error: “Dropping Close since the SSL connection is already closing” and “Premature connection close (the server doesn't...

MySQL shutdown unexpectedly in XAMPP

XAMPP's control panel displays error as Error: MySQL shutdown unexpectedly. 14:09:43 [mysql] This may be due to a blocked port, missing dependencies, improper privileges, a crash, or a...

How to use Visual Studio Code as Default Editor for Git

When using git at the command line, I am wondering if it is possible to use Visual Studio Code as the default editor, i.e. when creating commit comments, and looking at a diff of a file from the...

Winforms: How to get Mouse Events for Transparent Control on a Transparent Form

I have a transparent form that overlays the desktop in a c# .NET winforms application. The transparency is done by setting the BackColor to bright orange and then setting the TransparencyKey to...

How to map over arbitrary Iterables?

I wrote a reduce function for Iterables and now I want to derive a generic map that can map over arbitrary Iterables. However, I have encountered an issue: Since Iterables abstract the data...

Unable to use Firestore for fresh projects

Further to https://stackoverflow.com/questions/46605642, we created a couple Firebase projects and specifically went out of our way to avoid setting up AppEngine or using the Datastore — because...

Simple way to conditionnaly render styled-components and SVG icons

I had a really hard time trying to find a way for a simple action to render user avatar or SVG icon if avatar doesn't exist. I didn't found any good examples (or maybe i'm just bad at finding...

How to save and restore Keras LSTM model?

I have trained a LSTM network to predict stock price.But I don't know how to save and restore it. Follow is my code: CONST_TRAINING_SEQUENCE_LENGTH = 12 CONST_TESTING_CASES = 5 def...

Jekyll using pipe operator in where_exp

I am using Jekyll 3.8. My posts contain date attribute set. Some of them contain values from the past (e.g. 2001-01-01), some of them from the future (e.g. 2109-12-31). What I would like to...

Is it possible to await a for-loop in Dart?

I'm new to Dart and therefore having trouble with asynchronous programming. I'm trying to loop through a list of elements (let's call them ingredients for now) and query the database for recipes...

TensorFlow Keras CuDNNGRU to GRU conversion

I have a trained model built in TensorFlow 1.14 using the (now-deprecated) tf.keras.layers.CuDNNGRU layer (available in TensorFlow 2.0 in tf.compat.v1), and I am trying to port the old layer's...

When to use multiple supervisors in Laravel Horizon

In my config/horizon I now have: 'production' => [ 'supervisor-1' => [ 'connection' => 'redis', 'queue' => ['arbitrage'], 'balance' =>...

SSRS Report Date Range should limit Only 30 days

I am new to SSRS and I have to create a report with Startdate and Enddate that can be only 30 days apart, It should throw an error message "Startdate and Enddate must be less than 30 days...

Icon issues localNotificationsPlugin, how to add app Icon the right way

I have implemented local push notifications in flutter app. This plugin was working smoothly at first. The issues came when I had run flutter clean and also uninstalling the app on android...

How can I port a model (GLM) from h2o to scikit-learn?

I'm trying to train a ML algorithm to predict some data (real numbers). I successfully used h2o automl to find a model that predicts my variable almost perfectly (max error in 16k+ test...

c++17 parallel algorithms and CMake

It looks like more and more standard libraries implementations are relying on TBB for their parallel algorithms. This is a bit surprising to me, as I didn't think that standard libraries would...

Failed to build iOS project. We ran "xcodebuild" command but it exited with error code 65

I am new in react native development. I am using new MacBook Air (M1, 2020) with M1 chip. I have Installed the dependency below: Node = v14.15.3 Npm = 6.14.9 Homebrew = 2.7.0 react-native-cli:...

Flutter - Execution failed for task ':connectivity:compileDebugJavaWithJavac'

I am developing a flutter application using VSCode but recently when I tried the command flutter run, I am getting this error: Execution failed for task...

Is a revision of the std::allocator interface planned for future C++ versions?

In a talk from 2015 Andrei Alexandrescu outlines some atrocities of the std::allocator interface, shortly highlighting how it's not in fact about allocation and proposing a different way of...

Is it possible to use OCR to extract only the text with a specific color? IronOCR

I have some PNG files with multiples sentences in two different colors Black (Davy Gray) and Light Brown (Mushroom). Like this : I'm only interested in the Black text so I tried changing the...

get result from concurrent.futures which runs a kafka consumer in a python ThreadPoolExecuter

I am creating kafka consumers dynamically based on number of partitions that a topic might have. ( using KafkaConsumer form Kafka-Python ) Once I create the consumers, using ThreadPoolExecuter I...

Python script works in vscode but not rstudio

We have some python code that takes an excel file as input and processes it into a json file for some javascript to visualize. To complicate this further, the javascript (and a bunch of other...