CSS Wizardry

JUNE 30, 2023

Honestly, I started writing this article, for no real reason and somewhat without context, in December 2022—over half a year ago! TTFB is a good measure of your server response times and general back-end health, and issues here may have knock-on effects later down the line (namely with Largest Contentful Paint). log ( window.

Metrics 337

Metrics Google Code Monitoring 337

Dynatrace

JULY 2, 2024

The Qualys Threat Research Unit (TRU) has discovered a Remote Unauthenticated Code Execution (RCE) vulnerability in OpenSSH server (sshd) in glibc-based Linux systems. ” To our knowledge as of writing this article, no properly working exploits have been created. The CVE assigned to this vulnerability is CVE-2024-6387.

AWS 276

AWS Network Traffic Servers 276

SQL Performance

AUGUST 1, 2022

Recently I covered some of the T-SQL improvements in SQL Server 2022 here , and Aaron Bertrand covered additional improvements here. Microsoft just announced the release of SQL Server 2022 CTP 2.1. In this article, I focus on the distinct predicate and the approximate percentile functions. The DATETRUNC function. So far so good.

Servers 142

Servers Testing C++ Code 142

SQL Performance

MAY 24, 2022

Microsoft recently released the first public preview of SQL Server 2022. In this article I focus on windowing and NULL-related improvements. I’ll be using the sample database TSQLV6 in the examples in this article. This release has a number of T-SQL improvements. You can download this sample database here.

Servers 145

Servers C++ Code Database 145

Dynatrace

DECEMBER 16, 2020

This article explains what a software supply chain attack is, and how Dynatrace protects its customers against such attacks by applying: Risk management and business continuity planning. It all starts with the code. Dynatrace has established a secure SDL, which automatically enforces that all developed code is reviewed by a peer.

Software 289

Software Software Development AWS 289

Dynatrace

OCTOBER 25, 2023

Tracked as CVE-2023-34051 (CVSS score: 8.1), the Aria Operations for Logs vulnerability relates to a case of authentication bypass that could lead to remote code execution. In their report , they presented how an attacker could use three different CVEs to achieve remote code execution. Spoof the IP address of the known worker.

Analytics 306

Analytics Operating System Code Servers 306

SQL Performance

SEPTEMBER 21, 2022

Even SQL Server stores some flag-based data using bitwise representation. Setting the server configuration option “ user options” using bitwise representation. Prior to SQL Server 2022, T-SQL had minimal support for bit manipulation. Querying the current session’s state of session options with the @@OPTIONS function.

Servers 122

Servers C++ Code Cache 122

The Netflix TechBlog

DECEMBER 14, 2020

In this article we talk about one particularly difficult issue that blocked the launch of a device in Europe. Next I started reading the Ninja source code. I wanted to find the precise code that delivers the audio data. I recognized a lot, but I started to lose the plot in the playback code and I needed help.

Engineering 354

Engineering Code Open Source Hardware 354

DZone

OCTOBER 25, 2023

In this short article, we’ll explore eBPF (Extended Berkeley Packet Filter), an exciting new technology that makes programming the kernel flexible, safe, and accessible to developers. TLDR eBPF is a mechanism that makes the kernel dynamically programmable without modifying the source code.

Internet 204

Internet Internet Programming Network 204

Scalegrid

SEPTEMBER 16, 2019

You can remotely access and navigate another database server. The dashboard lets you monitor server activities such as database locks, connected sessions, and prepared transaction. Since pgAdmin is a web application, you can deploy it on any server and access it remotely.

Open Source 262

Open Source Database Azure Cloud 262

Scalegrid

MAY 2, 2019

In this post, we show you how to connect to an SSL-enabled MongoDB replica set configured with self-signed certificates using PyMongo, and how to test MongoDB failover behavior in your code. Here’s the relevant part of test code we will use to test our MongoDB failover behavior: import logging import traceback. import pymongo.

Testing 55

Testing Network Database Servers 55

SQL Shack

SEPTEMBER 28, 2020

In this article, we will explore a new SQL Server 2019 feature which is Scalar UDF (scalar user-defined) inlining. Scalar UDF inlining is a member of the intelligent query processing family and helps to improve the performance of the scalar-valued user-defined functions without any code changing.

Servers 107

Servers Programming Code Software 107

Dynatrace

DECEMBER 16, 2021

Since December 10, days after a critical vulnerability known as Log4Shell was discovered in servers supporting the game Minecraft, millions of exploit attempts have been made of the Log4j 2 Java library, according to one team tracking the impact, with potential threat to millions more applications and devices across the globe.

Internet 264

Internet Internet Games Java 264

Smashing Magazine

MAY 16, 2022

Rethinking Server-Timing As A Critical Monitoring Tool. Rethinking Server-Timing As A Critical Monitoring Tool. In the world of HTTP Headers, there is one header that I believe deserves more air-time and that is the Server-Timing header. Setting Server-Timing. Sean Roberts. 2022-05-16T10:00:00+00:00.

Servers 111

Servers Monitoring Cache Network 111

CSS Wizardry

OCTOBER 16, 2023

I began writing this article in early July 2023 but began to feel a little underwhelmed by it and so left it unfinished. Concatenating our files on the server: Are we going to send many smaller files, or are we going to send one monolithic file? in this article. Compile: the parsed code is compiled into optimised bytecode.

Cache 353

Cache Latency Strategy Speed 353

CSS Wizardry

MAY 31, 2019

A classic example is jQuery, that we might link to like so: There are a number of perceived benefits to doing this, but my aim later in this article is to either debunk these claims, or show how other costs vastly outweigh them. I won’t go into too much detail in this post, because I have a whole article. It’s convenient.

Cache 277

Cache Latency Infrastructure Website 277

Smashing Magazine

FEBRUARY 2, 2022

Improving JavaScript Bundle Performance With Code-Splitting. Improving JavaScript Bundle Performance With Code-Splitting. It’s a common misconception that the code which is produced by the framework build tools (Webpack, for example) is fully optimized and cannot be improved upon any further. The answer lies in code-splitting.

Code 104

Code Performance Network Website 104

SQL Shack

SEPTEMBER 6, 2021

In this article, we will explore in detail the factors that cause SQL Server stored procedures to be recompiled. Introduction SQL Server Stored procedures are the make-ready T-SQL codes that can be executed again and again by the database users to perform data manipulation commands and data definition commands.

Servers 90

Servers Database Code Performance 90

Dynatrace

JANUARY 17, 2024

And an O’Reilly Media survey indicated that two-thirds of survey respondents have already adopted generative AI —a form of AI that uses training data to create text, images, code, or other types of content that reflect its users’ natural language queries. Use containerization. Continuously monitor AI models’ performance.

Strategy 288

Strategy Artificial Intelligence Storage Cloud 288

Dynatrace

MAY 17, 2023

When software runs in a monolithic stack on on-site servers, observability is manageable enough. While classic logging is an essential tool in debugging issues, it often lacks context and only provides snapshot information of one specific location in your code/application. Those are prime candidates for their own spans.

Metrics 245

Metrics Open Source Traffic Cache 245

CSS Wizardry

SEPTEMBER 16, 2024

These intermediates fall outside of the scope of this article, but if you’ve ever run a traceroute , you’re on the right lines. That’s exactly what this article is about. Reduce Transfer Size Broadly simplified… Web servers don’t send whole files at once—they chunk them into packets and send those. How Can I See RTT Information?

Latency 244

Latency Cache Transportation Mobile 244

Dynatrace

NOVEMBER 23, 2020

Kubernetes Dashboard as a part of a comprehensive monitoring solution This article introduces the key building blocks to consider when designing your Kubernetes monitoring solution. After applying the first manifests (which are likely copied and pasted from a how-to tutorial ), a web server is up and running within minutes.

Virtualization 237

Virtualization Infrastructure Monitoring Cloud 237

Dynatrace

JULY 23, 2019

Whenever OneAgent can’t instrument your application automatically, as is currently the case with Python, you can use the OneAgent SDK to manually instrument your code. All the sample code including instrumentation is available on GitHub. Note that this sample code is considered educational and not supported by Dynatrace.

Monitoring 178

Monitoring Software Software Database 178

SQL Shack

SEPTEMBER 15, 2021

This article intends to give comprehensive details on how we can use the recompilation options of SQL Server stored procedures and how they behave when we use these recompilation options. A stored procedure is a ready T-SQL code that can be reused again and again. What is a SQL stored procedure?

Servers 80

Servers Code Performance 80

Smashing Magazine

OCTOBER 29, 2018

Measuring Performance With Server Timing. Measuring Performance With Server Timing. That issue is slow server response times. There’s very little browser optimisations can do to improve a page that is simply slow to build on the server. Encompassed in that wait time is everything the server needs to do to build the page.

Servers 89

Servers Performance Metrics Database 89

SQL Performance

OCTOBER 7, 2020

For more background on these performance spools see my prior article. With those out of the way, this article is exclusively about Sorts and when they can rewind. The Sort operator’s rewind behaviour may seem strange, but it has been this way from (at least) SQL Server 2000 to SQL Server 2019 inclusive (as well as Azure SQL Database).

Servers 106

Servers Cache Azure Performance 106

Dynatrace

NOVEMBER 20, 2019

Full-stack OneAgent for Z/Linux is derived from the implementation of OneAgent for Linux on x86 and x64 platforms, and so is a fully qualified citizen of the OneAgent family with only a few differences mentioned later in this article. running on the 64-bit OS/390x platform. Full-stack and cloud-infrastructure monitoring modes.

Availability 43

Availability Hardware Java Tuning 43

High Scalability

SEPTEMBER 8, 2018

Each storage server collects statistics about the requests it serves, the data it stores, etc. We also implemented a routing service that sends user requests to the correct servers in the correct tiers. Related Articles. Anna Code: fluent-project/fluent. They are about creating the future.

Storage 199

Storage Performance AWS Efficiency 199

Smashing Magazine

MARCH 6, 2025

How To Fix Largest Contentful Issues With Subpart Analysis How To Fix Largest Contentful Issues With Subpart Analysis Matt Zeunert 2025-03-06T10:00:00+00:00 2025-03-06T14:50:25+00:00 This article is sponsored by DebugBear The Largest Contentful Paint (LCP) in Core Web Vitals measures how quickly a website loads from a visitors perspective.

Website 59

Website Google Speed Metrics 59

Smashing Magazine

JULY 18, 2022

If you think that static rendering is limited to generic, public content that is the same for every user of your website, you should definitely read this article. Segmented Rendering is a new pattern for the Jamstack that lets you personalize content statically, without any sort of client-side rendering or per-request Server-Side Rendering.

Cache 127

Cache Website Servers Energy 127

Dynatrace

JULY 11, 2023

When exploiting the vulnerability, attackers can gain remote code injection capabilities in the MOVEit server and modify or steal sensitive data from its database. The problem with the IIS server access logs was the headers. This article was developed in conjunction with Robin Wyss. Just ask your Dynatrace account rep.

Database 189

Database Government Servers Games 189

DZone

JULY 8, 2022

One of the notable features is the introduction of HTTP Status Code 103. This article will dive into the HTTP 103 status code with a quick demo.

Google 130

Google Network Code Servers 130

Dynatrace

DECEMBER 27, 2022

For more information about defining critical paths, see the article Understanding your application’s critical path. In this example, “Reverse proxy” and “Front-end server” are clearly in the critical path. Dynatrace makes it easy to understand the service flow of your application through its Service flow feature.

Software 306

Software Software Benchmarking Latency 306

Dynatrace

SEPTEMBER 3, 2020

In comparison, the AIOps approach discussed within this article, is built upon a radically different deterministic AI engine – at Dynatrace known as Davis – that yields precise, actionable results in real-time. These approaches are slow and inaccurate limiting its practical applications. This is now the starting node in our tree. Conclusion.

Software 264

Software Software Artificial Intelligence Metrics 264

Smashing Magazine

NOVEMBER 2, 2021

Creating A Magento PWA: Customizing Themes vs. Coding From Scratch. Creating A Magento PWA: Customizing Themes vs. Coding From Scratch. One of the reasons for that is because a PWA has the same code base. So unlike the case with native applications, the progressive web app needs to be coded only once. Alex Husar.

Code 90

Code Cache Mobile Retail 90

Scalegrid

AUGUST 15, 2019

In this article, we are going to compare 6 of the top MongoDB Graphical User Interfaces that help developers increase their productivity and manage their database. Should have an excellent way to measure server and query performance. It’s further enhanced by an in-place code editor which is also available in all three views.

Database 40

Database Servers Availability Monitoring 40

Dynatrace

JULY 10, 2019

Just a single OneAgent per host is required to collect all relevant monitoring data, all the way down to specific lines of code. This article we help distinguish between process metrics, external metrics and PurePaths (traces). However, there are certain situations where you’d like to extend our Dynatrace out-of-the-box monitoring.

Java 197

Java Best Practices Metrics Azure 197