Tags: performance

How to Assess the Benefits of SDN in Your Network

Find out what three networking problems the benefits of SDN could address in your network and the questions you should ask to make sure you're on the right track. In terms of the benefits of SDN, let's look at three of the most important problems the technology can solve, along with some...
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How to Benchmark Your Linux System

If you go out looking for PC benchmark results, there’s a very strong chance the tests won’t perfectly translate to performance under Linux, since they were likely run in Windows. This is particularly true if certain hardware has limited support in the Linux kernel. However, there are still plenty...
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How to Solve 5 Elasticsearch Performance and Scaling Problems

This post is the final part of a 4-part series on monitoring Elasticsearch performance. Part 1 provides an overview of Elasticsearch and its key performance metrics, Part 2 explains how to collect these metrics, and Part 3 describes how to monitor Elasticsearch with...
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Cloud Migration Is Making Performance Monitoring Crucial

Application performance monitoring (APM) and network performance monitoring (NPM) are becoming increasingly important as businesses that have adopt cloud-based services and virtualized infrastructure. In the recent SDxCentral report, “Network Performance Management Takes On...
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The Power of Protocol Analyzers

In the complicated world of networking, problems happen. But determining the exact cause of a novel issue in the heat of the moment gets dicey. In these cases, even otherwise competent engineers may be forced to rely on trial and error once Google-fu gives out. Luckily, there’s a secret weapon...
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Dstat – A Resourceful Tool to Monitor Linux Server Performance in Real-Time

Some of the popular and frequently used system resource generating tools available on the Linux platform include vmstat, netstat, iostat, ifstat and mpstat. They are used for reporting statistics from different system components such as virtual memory, network...
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OpenStack API Benchmarking and Scaling — 3 Test Cases

Have you ever been curious how much of a workload the OpenStack control plane can handle before needing to scale horizontally? Based on the load, how will the API performance adjust? How much overhead will load on the OpenStack APIs add to my application deployment timeline? What behavior...
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Orange Pi
The Orange Pi series of machines lets you run a small Linux machine dedicated to a specific task for a very attractive price -- less than $20 for setup.

The Orange Pi: Linux on Quad Core for Under $20

The Orange Pi series of machines lets you run a small Linux machine dedicated to a specific task for a very attractive price -- less than $20 for setup. Some ideas for using an Orange Pi include adding network connectivity to an older printer, transcoding a USB webcam and sending it over the...
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‘MegaMIMO 2.0’ Wireless Routers Work Together to Triple Bandwidth and Double Range

Wireless interference is one of those things that we tend to not think about, because, well, we can’t see it. But routers are all over the place, sometimes several in a room when you’re in an office, conference, or campus — and make no mistake, it’s an epic battle at the frequencies they share....
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How to Install and Configure Graphics Drivers in Linux

The hunt for gaming performance on Linux is a constant and ever-changing challenge. The market for discrete graphics cards has become dominated by the two graphics giants: Nvidia and Advanced Micro Devices (AMD). This has meant the decision boils down to one simple question: Which...
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