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  • Should we persist with an employee still writing bad code after many years?

    - by user94986
    I've been assigned the task of managing developers for a well-established company. They have a single developer who specialises in all their C++ coding (since forever), but the quality of the work is abysmal. Code reviews and testing have revealed many problems, one of the worst being memory leaks. The developer has never tested his code for leaks, and I discovered that the applications could leak many MBs with only a minute of use. User's were reporting huge slowdowns, and his take was, "it's nothing to do with me - if they quit and restart, it's all good again." I've given him tools to detect and trace the leaks, and sat down with him for many hours to demonstrate how the tools are used, where the problems occur, and what to do to fix them. We're 6 months down the track, and I assigned him to write a new module. I reviewed it before it was integrated into our larger code base, and was dismayed to discover the same bad coding as before. The part that I find incomprehensible is that some of the coding is worse than amateurish. For example, he wanted a class (Foo) that could populate an object of another class (Bar). He decided that Foo would hold a reference to Bar, e.g.: class Foo { public: Foo(Bar& bar) : m_bar(bar) {} private: Bar& m_bar; }; But (for other reasons) he also needed a default constructor for Foo and, rather than question his initial design, he wrote this gem: Foo::Foo() : m_bar(*(new Bar)) {} So every time the default constructor is called, a Bar is leaked. To make matters worse, Foo allocates memory from the heap for 2 other objects, but he didn't write a destructor or copy constructor. So every allocation of Foo actually leaks 3 different objects, and you can imagine what happened when a Foo was copied. And - it only gets better - he repeated the same pattern on three other classes, so it isn't a one-off slip. The whole concept is wrong on so many levels. I would feel more understanding if this came from a total novice. But this guy has been doing this for many years and has had very focussed training and advice over the past few months. I realise he has been working without mentoring or peer reviews most of that time, but I'm beginning to feel he can't change. So my question is, would you persist with someone who is writing such obviously bad code?

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  • Why is that SQL Server Instance under stress?

    There are several reliable indications, using SQL Queries, of what is causing SQL Server performance problems. Some of these are fairly obvious, but others aren't. Grant shows how you can get clues from any SQL Server as to the cause of stress. Schedule Azure backupsRed Gate’s Cloud Services makes it simple to create and schedule backups of your SQL Azure databases to Azure blob storage or Amazon S3. Try it for free today.

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  • No audio on an HP dm4

    - by Haze1
    I just got a new laptop, HP dm4, and I'm having problems getting the audio to work properly on it. http://www.alsa-project.org/db/?f=7b697a35465a9f7236fb94deb9ff97fa65e55489 I tried to edit /etc/modprobe.d/alsa-base.conf and added: option snd-hda-intel model=ref this caused the audio to work, but it's muffled. I'm wondering if anybody knows what would be the correct options to get this POS to work.

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  • How to fix the "Unable to calculate upgrade" issue when upgrading from 12.04 to 12.10?

    - by Vagrant232
    I've been trying to upgrade to 12.10 ever since it was released today but I keep meeting this error: "An unresolvable problem occurred while calculating the upgrade: E:Unable to correct problems, you have held broken packages. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu" I've tried updating all the currently installed software, removing all the extra PPAs, downgrading the files installed from xorg edgers' ppa but I haven't been able to solve the problem.

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  • How to reinstall PulseAudio (Ubuntu 12.04)

    - by user252617
    I was trying to fix my audio problems using suggestions from this forum. One of the comments suggested I execute this and only this: killall pulseaudio So I did, and I restarted my computer just in case, but all it did was remove my soundcard and I still couldn't hear anything. Now I don't know how to get my soundcard back. Please note that I am extremely inexperienced when it comes to Ubuntu.

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  • Which devices is my app working on

    - by Woojah
    My team is developing an app that will work on about 100 (or more) different android devices. We are having trouble testing it since we are not sure how to verify if it works on all the different devices. Can anybody suggest some best practices, a testing framework, or some sort of way to give us feedback on how to test our app and/or get feedback from our users so they can tell us the problems they are having?

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  • One Database or Ten?

    - by merrillaldrich
    In my career to date I’ve worked as a DBA for mainly “buy don’t build” scenarios. One advantage - and hair-graying problem, if I am honest - has been that I think I’ve seen upward of one or two hundred different ISV-provided applications’ SQL Server databases. It’s a great learning opportunity, as I can see successes and failures in a large variety of designs, and sort of “fast-forward” to version five or eight of a given design pattern to see things like whether it scales, or has storage problems,...(read more)

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  • **plz help. skype wont install**

    - by ubuntukululu
    Whenever I try to install it it says, Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming The following information may help to resolve the situation: The following packages have unmet dependencies: skype : Depends: skype-bin but it is not installable E: Unable to correct problems, you have held broken packages. I have tried stuff people told me to do and I still can not get it to work.

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  • Mimicking Network Databases in SQL

    Unlike the hierarchical database model, which created a tree structure in which to store data, the network model formed a generalized 'graph' structure that describes the relationships between the nodes. Nowadays, the relational model is used to solve the problems for which the network model was created, but the old 'network' solutions are still being implemented by programmers, even when they are less effective.

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  • LOB Pointer Indexing Proposal

    - by jchang
    My observations are that IO to lob pages (and row overflow pages as well?) is restricted to synchronous IO, which can result in serious problems when these reside on disk drive storage. Even if the storage system is comprised of hundreds of HDDs, the realizable IO performance to lob pages is that of a single disk, with some improvement in parallel execution plans. The reason for this appears to be that each thread must work its way through a page to find the lob pointer information, and then generates...(read more)

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  • Clean install with home folder and multiple users

    - by haydoni
    I had reformatted my system (unfortunately an update failed) and had my home folder on a separate partition. Thankfully I still have all of my users files (in their respective folders), but there was no option to use this on install (since my update had failed...). How can I recreate the old users with their previous home directories? (Are there problems with user permissions with just dragging and dropping the entire contents of folders?)

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  • install ubuntu with windows 7

    - by Olansile Okanlawon
    i finally decided to clear my hard disk and start over again, i need to install both ubuntu 12.04 and windows 7. I currently have two problems: 1. I have installed ubuntu on the fresh 320 GB drive, but when i restart i can't boot into my ubuntu, except i insert the flash drive i used for the installation into my system during d boot process. 2. What's the best and easiest way to install ubuntu 12.04 on a seperate partition, and how do i go about the partitioning

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  • The Rise Of CSS In Web Design

    Style sheet languages were introduced in the market because of their capability to reduce the problems which are usually associated with the use of tables in website design. One of the most popular s... [Author: Margarette Mcbride - Web Design and Development - May 04, 2010]

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  • Downgrading Ubuntu 13.10 [duplicate]

    - by empec
    This question already has an answer here: How to roll back Ubuntu to a previous version? 9 answers I'd like to downgrade from Ubuntu 13.10 back to an older version. i.e. 13.04. Can I just boot ubuntu installer, uninstall Ubuntu 13.10 and install 13.04 without any problems to my home folder?

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  • Genymotion in Ubuntu

    - by fareed fareedi
    Is there anybody to help me? I've installed Virtualbox and Genymotion on Ubuntu successfully. Then I selected Samsung Galaxy s5 4.4.2 on Genymotion, downloaded it succesfully either, but I've got problems in installation of APK. So I did genymotion translation 1.1 and gapps-kk, but yet my APK didn't work. When I started Genymotion appeared viber, tango, Google service, etc, but unfortunately it has stopped.

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