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High performance .NET: Building a Redis Clone–separation of computation & I/O

June 13, 2022

After achieving 1.25 million ops/sec, I decided to see what would happen if I would change the code to support pipelining. That ended up being quite involved, because I needed to both keep track of all the incoming work as well as send the work to multiple locations. The code itself is garbage, in my opinion. It is worth it only as far as it…

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Database Hardware Optimization Strategies to Reduce Hosting Costs

June 13, 2022

What to consider when sizing your CPU, memory, and storage hardware to best optimize RavenDB’s performance for your needs After deciding on an availability strategy, choosing the right hardware configuration for your RavenDB workload is critical to maintain expected performance SLAs and keep your database healthy. In this article, we’ll cover…

series ravendb-disaster-series nosql-database

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High performance .NET: Building a Redis Clone–Architecture

June 10, 2022

My previous attempts to write a Redis clone were done in about as straightforward a way as possible. Open a socket to listen on, have a separate Task for each client that reads from the network, parse the command and execute it. There are some smarts around supporting pipelining, but that is pretty much it. Let’s take a step back and build…

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High performance .NET: Building a Redis Clone–Analysis

June 9, 2022

In the previous post, I wrote a small Redis clone using the most naïve manner. It was able to hit nearly 1M queries per second on our test instance (c6g.4xlarge, using 16 cores and 64 GB of memory). Before we get any deeper into optimization, it is worth understanding where the time is actually being spent. I run the server under a profiler, to…

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High performance .NET: Building a Redis Clone–naively

June 8, 2022

I run into this project, which aims to be a Redis clone with better performance and ease of use. I found it interesting because one of the main selling points there was that it is able to run in a multi threaded mode (instead of Redis’ single thread per process model). They use memtier_benchmark (part of Redis) to test their performance. I got…

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High Availability Database Clustering Strategies

June 7, 2022

How RavenDB can help mitigate networking issues using different availability strategies and their trade-offs, with each one successively mitigating against larger and more catastrophic network disasters. As a baseline, RavenDB installations should follow the OS configuration and network/firewall settings guides for more detailed configuration…

series ravendb-disaster-series nosql-database

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Unit testing RavenDB

June 7, 2022

Steven has written a post about unit testing RavenDB which shows how easy it is to just write the code you’ll do anyway, and be able to seamlessly and easily test that without any hassles…

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Database Integration Testing – The Secret Recipe

June 6, 2022

Let’s talk about testing… Not about the importance of testing in general, but rather about automated tests against NoSQL Databases. The simplicity of writing and orchestrating them in build pipelines, and the power they unveil – high confidence in reliable code after making changes and before writing new code (TDD). Why test against an actual…

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Building a Call for Papers website with Blazor & RavenDB

June 6, 2022

CodingAfterWork has published a three parts series (more than 5 hours!) showing how you can build the Next Tech Event using Blazor and RavenDB. Take a look, it’s interesting. …