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Understanding the deadlock definition in SQL Server

SQL Shack

This article explains the deadlock definition in SQL Server, and it also mentions how to capture deadlock with extended events. Deadlock is a resource contention issue that occurs between two or more than two processes. Deadlock Definition Deadlock occurs when two processes want […].

Servers 93
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Percona Server for MongoDB 7 Is Now Available

Percona

This is not a general rule, but as databases are responsible for a core layer of any IT system – data storage and processing — they require reliability. Why choose Percona Server for MongoDB? Why release Percona Server for MongoDB 7 now? which was released as Percona Server for MongoDB RC 7.0.2-1.

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Image Processing Insights

KeyCDN

KeyCDN has significantly simplified the way images are transformed and delivered with our Image Processing service. Our solution doesn't require any change on the origin server. Properly size images: Scaled images will definitely reduce the overall website size. Our Image Processing service makes it easy to do that.

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How to use Server Timing to get backend transparency from your CDN

Speed Curve

Server-timing headers are a key tool in understanding what's happening within that black box of Time to First Byte (TTFB). Cue server-timing headers Historically, when looking at page speed, we've had the tendency to ignore TTFB when trying to optimize the user experience. I mean, why wouldn't we?

Servers 57
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Dynatrace memory analysis helps Product Architects identify unknown unknowns

Dynatrace

We recently extended the pre-shipped code-level API definitions to group logical parts of our code so they’re consistently highlighted in all code-level views. Another benefit of defining custom APIs is that the memory allocation and surviving object metrics are split by each custom API definition. The handler is responsible for ~3.5

Java 214
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2023 Black Friday and Cyber Monday retail and e-commerce IT performance observations

Dynatrace

In the past, I tried to understand where in the page-loading process was the majority of time spent. When we look at the combined tests above, the average server-side response time (measured as first byte time, or the amount of time it takes to get the first packet of data in response to a request) is 397 milliseconds.

Retail 226
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Don't rely on end-to-end tests: design for failure instead.

DZone

We typically understand software testing by the everyday definition of the word: making sure a piece of software performs the way it is supposed to in a production-like environment. The first category would fall under integration testing, and you definitely need that. Or is there? with a username and password).

Design 193