Interthread communication time

I am chaining together 15 async operations through ports and receivers. This has left me very concerned with the interthread messaging time, specifically the time it takes between a task posting...

Does all memory flagged as copy-on-write get copied after a single change to one piece of the data?

My question is, perhaps, a poorly worded one and stems from my amateurish understanding of memory management. My concern is this: I have a Perl script that forks many times. As I understand from...

How to edit and SAVE static webpages from browser?

I had been using Dreamweaver in Windows. Recently I shifted to Ubuntu, there I cant find any good alternative to Dreamweaver. So I decided to use Firebug but Its good for editing CSS,...

How to secure content in Orchard CMS

I'd like to use the roles and membership ability of Orchard CMS to limit access to a staff portal in Orchard CMS. At present there doesn't look like there's an out of the box way to do it. I've...

Valums fileuploader with multiple instances

Im using multiple instances with valums fileuploader, but it seems that uploader only use last settings for every instances, is there an option to avoid this and use local settings? Uploading goes...

Linux internal memory representation

I want a help in understanding this: The internal memory is structured into a linked list. The linked list consists scull_qset nodes, these nodes have a pointer to the next node and a data...

jquery autocomplete remote data source

I am new to jQuery. I am trying jQuery autocomplete remote data source here is my code: HTML <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"...

Parallel.For and Break() misunderstanding?

I'm investigating the Parallelism Break in a For loop. After reading this and this I still have a question: I'd expect this code : Parallel.For(0, 10, (i,state) => {...

How to enable user-scalable (viewport property) after disabling it?

I created an Android app with Phonegap. I want to be able to have a fixed div in one page and to zoom-in in another page. I use jquery mobile 1.2.0, Jquery 1.8.2, Phonegap 2.0.0 and Android...

Executing block of code without context switch

Is there any way to execute a block of code in C without suffering a Context Switch? I have modified perf stat to sample the counters periodically. While this works, it ends up giving me some bad...

Is it possible to use core motion for distance measurement

Possible Duplicate: Getting displacement from accelerometer data with Core Motion Android accelerometer accuracy (Inertial navigation) I am trying to use core motion user acceleration values,...

Oracle SQL Create PDF from Data

So I am trying to create a Probability Density Function from data in an Oracle SQL table through a SQL query. So consider the below table: Name | Spend -------------- Anne | 110 Phil | ...

manual Instance Show definition causes Stack Space Overflow

When I write manually a simple show instance for the PhisicalCell datatype, the program consumes all the space. When deriving his own version of Show, this doesn't happen. Why? here is a...

Linked List, Stuck on file management

I am trying to read from a file called data.txt. and store it into a LL which looks like this Quanta 2 New 2 Ready 2 A 1 3 B 3 4 C 5 6 D 7 9 I would like to read that file, one line at a time,...

Correct way to unpack a 32 bit vector in Perl to read a uint32 written in C

I am parsing a Photoshop raw, 16 bit/channel, RGB file in C and trying to keep a log of exceptional data points. I need a very fast C analysis of up to 36 MPix images with 16 bit quanta or 216 MB...

Creating time series DataFrame from event data

I have a dataset of locations of stores with dates of events (the date all stock was sold from that store) and quantities of the sold items, such as the following: import numpy as np, pandas as...

Generating token for JWT Auth BigQuery API

I read the documentation of Google OAuth2.0 for server to server application and tried searching online but could not find reference for creating and renewing OAuth2.0 Token for Bigquery API I...

The configuration file 'appsettings.json' was not found and is not optional

The Azure error is: .Net Core: Application startup exception: System.IO.FileNotFoundException: The configuration file 'appsettings.json' was not found and is not optional. So this is a bit...

Comparing two regression coefficients (panel data, multilinear regression)

I want to compare two coefficients of regressions I ran on subsamples from my panel data. The formulas look like this: r1 <- plm(y ~ x1+x2+x3, data=regressiondatalow,...

Radix Sort C code to sort uint64_t looking only at 32 MSB bits?

I use the uint64_t Radix sort provided by Louis Ricci (answered Aug 24 '15 at 18:00) Radix_Sort_Uint64. Amazingly fast. I have a data structure which contains 2, uint32_t items and want to sort a...

pandas - convert index type from RangeIndex to Int64Index

How do I convert a RangeIndex type to an Int64Index type? I have two dataframes, both imported from .csv files in the same way. Pandas automatically makes one an Int64Index and the other a...

Julia Micro-Benchmark Statistic Recommendations

What do people in the Julia community consider to be the most valid statistic for micro-benchmark performance test comparisons? For example, the BenchmarkTools macro @benchmark reports...