Fri.May 01, 2020

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Rethinking Programming: Automated Observability

DZone

Introduction. Observability is the ability to understand the internal state of your system by looking at what is happening externally. In a software system, in order to acquire observability, we mainly implement the following aspects: logging, metrics, and tracing. Especially when we are moving away from monolithic software systems to microservices-based architectures, observability becomes a key aspect of the system design.

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Get out-of-the-box visibility into your ARM platform (Early Adopter)

Dynatrace

Dynatrace news. The Linux ARM platform —the Linux kernel ported to ARM processor–based machines—is becoming a tempting, cost-effective solution for building microservice-oriented data centers. We’ve started observing a shift towards the ARM platform among our customers already. This shift has been inspired in part by big market SaaS and IaaS players like Amazon ( see their original announcement here ) and Microsoft ( read about their announcement here ).

Java 134
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Why Usability Testing Is So Important

DZone

Usability testing is software black-box testing that helps you check if the product is easy to learn, easy to understand, and intuitive. Testers examine the ease with which the user interfaces work. We test whether the application or the product is user-friendly or not. Usability testing is a method of testing and observing the behavior of the users to find out what works and what doesn't work.

Testing 159
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"0 to 60" : Switching to indirect checkpoints

SQL Performance

In a recent tip , I described a scenario where a SQL Server 2016 instance seemed to be struggling with checkpoint times. The error log was populated with an alarming number of FlushCache entries like this one: FlushCache: cleaned up 394031 bufs with 282252 writes in 65544 ms (avoided 21 new dirty bufs) for db 19:0 average writes per second: 4306.30 writes/sec average throughput: 46.96 MB/sec, I/O saturation: 53644, context switches 101117 last target outstanding: 639360, avgWriteLatency 1.

C++ 58
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How Server Location Affects your Users’ Experience

DZone

So you finally launched your service worldwide, great! The next thing you’ll see is thousands and thousands of people flooding into your amazing website from all corners of the world expecting to have the same experience regardless of their location. Here is where things get tricky.

Servers 141