Sat.Dec 21, 2019 - Fri.Dec 27, 2019

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Code Quality: Its Importance in Custom Software Development

Simform

The post Code Quality: Its Importance in Custom Software Development appeared first on Insights on Latest Software Technologies - Simform Blog.

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Overview of SQL Server Clustered index

SQL Shack

This article targets the beginners and gives an introduction of the clustered index in SQL Server. Introduction An index plays a crucial role in SQL Server query performance. Consider a book library with thousands of books. You want to search for a specific book that contains the keyword “adventure” in the title. The books in […].

Servers 58
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Fun with (columnstore) compression on a very large table – part 1

SQL Performance

Recently someone at work asked for more space to accommodate a rapidly growing table. At the time it had 3.75 billion rows, presented on 143 million pages, and occupying ~1.14TB. Of course we can always throw more disk at a table, but I wanted to see if we could scale this more efficiently than the current linear trend. Sounds like a great job for compression, right?

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Best of TechBeacon 2019: App dev and testing pros share best practices

TechBeacon Testing

Many organizations that have implemented agile development practices are struggling to derive full value from them because of a variety of factors, including a slowness to jettison conventional approaches and a failure to adopt best practices.

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Get up to 300 new metrics out of the box with AWS supporting services (GA)

Dynatrace

Dynatrace news. AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. You can use these services in combinations that are tailored to help your business move faster, lower IT costs, and support scalability. But to understand if your cloud-based applications, as well as environments they run in, are working as designed, you need to see how every single application component communicates and interacts with the ot

AWS 137
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BPF Theremin, Tetris, and Typewriters

Brendan Gregg

For my AWS re:Invent talk on BPF Performance Analysis at Netflix, I began with a demo of "BPF superpowers" (aka eBPF). The video is on [youtube] and the demo starts at [0:50] (the sildes are on [slideshare]): I'm demonstrating a tool I developed to turn my laptop's wifi signal strength into audio. I first developed it as this [bpftrace] one-liner: bpftrace -e 'k:__iwl_dbg /str(arg4) == "Rssi %d, TSF %llun"/ { printf("strength: %dn", arg5); }'.

C++ 102
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A day in the life of… the Senior Manager of Technical Account Management

Tasktop

Today we’re heading to Nashville to meet our Senior Manager of Technical Account Management, Lori! She discusses how she works across multiple time zones, her love for working with customers on their integration journeys, and where to get the best lunch in Austin. How do you start your day before work? I start my day by making sure my teenagers have had breakfast, have all their electronics (preferably fully charged), have their backpacks, and make it out the door on time with my husband to head

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Get up to 300 new metrics out of the box with AWS supporting services (GA)

Dynatrace

Dynatrace news. AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. You can use these services in combinations that are tailored to help your business move faster, lower IT costs, and support scalability. But to understand if your cloud-based applications, as well as environments they run in, are working as designed, you need to see how every single application component communicates and interacts with the ot

AWS 133
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Year in Web Performance: 2019

MachMetrics

The Web Almanac by HTTP Archive is a free, open-source collaborations featuring input from over 80 contributors. It is one of the most complete “state of the web” reports currently available. Offering 20 chapters with insights into Page Content, User Experience, Content Publishing, and Content Distribution, it can also be overwhelming, so we’ll be summarizing the web performance section in an easy-to-understand manner.

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BPF Theremin, Tetris, and Typewriters

Brendan Gregg

For my AWS re:Invent talk on BPF Performance Analysis at Netflix, I began with a demo of "BPF superpowers" (aka eBPF). The video is on [youtube] and the demo starts at [0:50] (the slides are [here] or as a [PDF]): I'm demonstrating a tool I developed to turn my laptop's wifi signal strength into audio (someone described this as a BPF [theremin].) I first developed it as this [bpftrace] one-liner: bpftrace -e 'k:__iwl_dbg /str(arg4) == "Rssi %d, TSF %llun"/ { printf("strength: %dn", arg5); }' Att

C++ 52
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Change the Host File of an Android Emulator

The Polyglot Developer

While working on a bug in one of my projects recently, I found an issue that I could only recreate on an Android device. However, due to some cross-origin resource sharing (CORS) issues on my server, I had to serve my development environment from a changed hostfile that had a specific subdomain of my project. With the ability to use a remote Chrome debugger from your desktop to a mobile device, you can use an emulator and still have your full Chrome debugging capabilities.

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Avoid large pull requests

Addy Osmani

Tip: Avoid large pull requests. Find ways to break them up into smaller ones.

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BPF Theremin, Tetris, and Typewriters

Brendan Gregg

For my AWS re:Invent talk on BPF Performance Analysis at Netflix, I began with a demo of "BPF superpowers" (aka eBPF). The video is on [youtube] and the demo starts at [0:50] (the sildes are on [slideshare]): I'm demonstrating a tool I developed to turn my laptop's wifi signal strength into audio (someone described this as a BPF [theremin].) I first developed it as this [bpftrace] one-liner: bpftrace -e 'k:__iwl_dbg /str(arg4) == "Rssi %d, TSF %llun"/ { printf("strength: %dn", arg5); }'.

C++ 52
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The Community Contributions of 2019

The Polyglot Developer

Last year, in my article titled, The Community Contributions of 2018 , I highlighted 11 tutorials that were contributed by the community. To show my appreciation towards the guest contributors on The Polyglot Developer , I wanted to highlight the content that they’ve produced in 2019. If you found any of the following tutorials valuable, I encourage you to reach out to the author on social media and thank them for taking the time to produce such great content.

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Break tasks you procrastinate into smaller, low-energy ones

Addy Osmani

Tip: Break tasks you procrastinate into smaller, low-energy ones. It helps.

Energy 40