DZone

MARCH 24, 2021

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

Design Testing Software Performance Database 193

Dynatrace

MAY 28, 2020

In this blog, I will be going through a step-by-step guide on how to automate SRE-driven performance engineering. Keptn uses SLO definitions to automatically configure Dynatrace or Prometheus alerting rules. Step-by-step guide: SRE-driven performance analysis with Dynatrace. This is what this blog is all about.

Engineering 192

Engineering Performance Metrics Best Practices 192

Smashing Magazine

AUGUST 3, 2023

How We Optimized Performance To Serve A Global Audience How We Optimized Performance To Serve A Global Audience Liran Cohen 2023-08-03T10:00:00+00:00 2023-08-03T13:06:00+00:00 I work for Bookaway , a digital travel brand. Large preview ) We’ve known for a long time that fast page performance influences search engine rankings.

Performance 74

Performance Cache Traffic Metrics 74

Scalegrid

FEBRUARY 15, 2024

Each section is crafted to elevate your database’s security protocol, from acquiring the necessary SSL certificates to configuring server and client connections. Preparing SSL Certificates for MongoDB The SSL certificates are necessary for our MongoDB server to establish secure SSL/TLS communications.

Servers 130

Servers Best Practices Government Network 130

Dynatrace

JULY 11, 2023

IBM Power servers enable customers to respond faster to business demands, protect data from core to cloud, and streamline insights and automation. Intelligent root cause analysis: Use Davis® AI to automatically detect and analyze performance issues across the entire tech stack.

Architecture 170

Architecture Availability Infrastructure Metrics 170

Scalegrid

DECEMBER 19, 2019

It’s a very simple utility that does exactly one thing – it sits between the database and the clients and speaks the PostgreSQL protocol, emulating a PostgreSQL server. When PgBouncer receives a client connection, it first performs authentication on behalf of the PostgreSQL server. How Does PgBouncer Work?

Cache 246

Cache Architecture Database Servers 246

Alex Russell

FEBRUARY 28, 2022

It's being reposted here for completeness, but if you care about web performance, make sure to check out the whole series and get subscribed to the RSS feed to avoid missing any of next year's posts. The predominant answer: a unified theory of web performance. What, in particular, is "web performance"? How do we do it?

Performance 104

Performance Latency Architecture Network 104

The Netflix TechBlog

JUNE 13, 2023

Migrating Critical Traffic At Scale with No Downtime — Part 2 Shyam Gala , Javier Fernandez-Ivern , Anup Rokkam Pratap , Devang Shah Picture yourself enthralled by the latest episode of your beloved Netflix series, delighting in an uninterrupted, high-definition streaming experience.

Traffic 279

Traffic Metrics Systems Strategy 279

Percona

JULY 19, 2023

In the world of modern DevOps, deployment automation tools have become essential for streamlining processes and ensuring consistent, reliable deployments. GitOps and ArgoCD are at the cutting edge of deployment automation, making it easy to deploy complex applications and reducing the risk of human error in the deployment process.

Servers 81

Servers Best Practices DevOps Open Source 81

SQL Performance

JANUARY 20, 2022

All through my career as a data professional, both inside Microsoft and as a consultant, I’ve found one of the most misunderstood parts of a SQL Server database is the transaction log. Performance issues from repeated shrinking of the transaction log. Performance issues from repeated shrinking of the transaction log.

Servers 54

Servers Database Architecture Performance 54

Smashing Magazine

JANUARY 11, 2021

Front-End Performance Checklist 2021. Front-End Performance Checklist 2021. This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. Web performance is a tricky beast, isn’t it?

Performance 145

Performance Cache Media Metrics 145

Dynatrace

FEBRUARY 14, 2022

Multiple Prometheus servers might be required, creating significant maintenance efforts. Alternatively, if you’re already using a Prometheus Server to gather data from your distributed systems, you can now seamlessly make this data work for you in Dynatrace as well—use your Prometheus server as the endpoint for scraping metrics.

Technology 217

Technology Technology Metrics Infrastructure 217

Brendan Gregg

APRIL 8, 2022

A while ago I helped a colleague, Vadim, debug a performance issue with TensorFlow in an unexpected location. At Netflix, 10% of CPU time somewhere unexpected can be a large costly issue across thousands of server instances. Sometimes processes page fault a lot because they call mmap()/munmap() to add/remove memory.

Performance 52

Performance Virtualization Code Servers 52

Percona

JULY 25, 2023

When a new node joins the cluster, SST is performed to receive the data from DONOR to the JOINER. The data is internally inconsistent because the server concurrently modifies the data files while they are being copied. Percona XtraBackup performs crash recovery on the files to make a consistent, usable database again.

Cache 88

Cache Benchmarking Servers Design 88

SQL Performance

SEPTEMBER 29, 2021

A common requirement in ETL and various reporting scenarios is to quietly load a SQL Server staging table in the background, so users querying the data aren’t impacted by the writes and vice-versa. Refreshing Tables in SQL Server. SQL Server Partition Switching Example. definition , 500 ) FROM sys. session_id , o.

Servers 55

Servers Games Database Processing 55

CSS Wizardry

DECEMBER 9, 2023

A trivial performance optimisation to help speed up third-party or other-origin requests is to preconnect them: hint that the browser should preemptively open a full connection ( DNS , TCP , TLS ) to the origin in question, for example: In the right circumstances, this simple, single line of HTML can make pages hundreds of milliseconds faster !

Speed 234

Speed Network Analytics Availability 234

The Netflix TechBlog

MAY 19, 2023

Netflix Modeling Challenges Before Caveats SpiceDB, being a Relationship Based Access Control (ReBAC) system, expected authorization checks to be performed against the existence of a specific relationship between objects. A cleanup process to prune stale relationships from the database. This is a Caveated SpiceDB relationship.

Cache 249

Cache Google Open Source Systems 249

Alex Podelko

OCTOBER 18, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. In agile development / DevOps environments it should be interwoven with the whole development process. – Cloud. – Agile. .

Performance Testing 100

Performance Testing Testing Performance DevOps 100

Dynatrace

MAY 17, 2023

When software runs in a monolithic stack on on-site servers, observability is manageable enough. Traditionally, organizations have relied solely on logging to monitor how applications perform, and that – generally – works fine in many cases.

Metrics 180

Metrics Open Source Traffic Cache 180

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. Performing steps like switching from a single-CDN setup to a multi-CDN or separating strategies for content types can make the benefits twofold! Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

Percona

DECEMBER 18, 2023

This is where the decision to sunset an otherwise successful stack has less to do with performance and more about changing realities and opportunities. For example, suppose you are tasked to migrate a well-performing, albeit aging, DBMS to a cutting-edge PostgreSQL one; how would you do it? MYSQL: OS: Ubuntu 16.04 MySQL version 5.7

Open Source 124

Open Source Database Architecture Design 124

The Netflix TechBlog

JULY 30, 2019

Many of the Netflix Content and Studio Engineering services rely on Conductor for efficient processing of their business flows. Adoption As of writing this blog, Conductor orchestrates 600+ workflow definitions owned by 50+ teams across Netflix. The Netflix Media Database (NMDB) is one such example.

Lambda 189

Lambda Media Open Source Metrics 189

Dynatrace

FEBRUARY 16, 2023

There are many definitions of environmental sustainability, most of which converge on a common theme: collectively and individually, we have a responsibility to act to protect global ecosystems and support health and wellbeing, now and in the future. Average cloud server idle time exceeds 70%. Balancing act or tipping point?

Energy 185

Energy Airlines Analytics Transportation 185

Dynatrace

NOVEMBER 14, 2023

This can often result from a lack of understanding of the discipline’s role in delivering on key performance objectives: SLOs. These small wins, such as implementing a blameless root cause analysis process, can take many forms and don’t necessarily involve numerical metrics.

Best Practices 191

Best Practices Engineering DevOps Software Engineering 191

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. Performing steps like switching from a single-CDN setup to a multi-CDN or separating strategies for content types can make the benefits twofold! Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

Percona

JULY 25, 2023

You can choose to save them locally on the same server, stream them to different servers, or store them in object storage. STDOUT Datasink This diagram displays the process of streaming a backup to object storage utilizing the current STDOUT datasink: XtraBackup spawns multiple copy threads. FIFO ( 8 pipes) – Utilized 1.15

Storage 81

Storage Speed Open Source Servers 81

Alex Russell

MARCH 6, 2021

Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones. Poor performance has a compound effect on user expectations at an ecosystem level. Live by the link, die by the link.

Performance 124

Performance Network Cache Metrics 124

Alex Podelko

OCTOBER 20, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. Cloud seriously impacts system architectures that has a lot of performance-related consequences. Mitigating performance risks moves to SaaS vendors.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

The Netflix TechBlog

FEBRUARY 9, 2021

In the process, we changed end-to-end identity propagation within the network of services to use a cryptographically-verifiable token-agnostic identity object. The API server orchestrates backend systems to authenticate the user. Critical identity data was being propagated throughout the server ecosystem in an inconsistent fashion.

Architecture 221

Architecture Latency Servers Website 221

Dynatrace

NOVEMBER 3, 2021

Monitoring , by textbook definition, is the process of collecting, analyzing, and using information to track a program’s progress toward reaching its objectives and to guide management decisions. Log entries describe events, such as starting a process, handling an error, or simply completing some part of a workload.

Monitoring 221

Monitoring Metrics DevOps Scalability 221

Dynatrace

MARCH 17, 2021

A single OneAgent instance can handle the monitoring of many types of entities, including servers, applications, services, databases, and more. You want to optimize your Citrix landscape with insights into user load and screen latency per server? Your SAP instance is slow, and you don’t know which transactions or users are affected?

Metrics 169

Metrics Monitoring Network Technology 169

SQL Performance

AUGUST 23, 2019

In traditional row-mode execution plans, SQL Server may introduce a Bitmap operator as part of performing early semi join reduction before a parallel hash or merge join. There have been major improvements since the first appearance of the batch mode execution engine in SQL Server 2012. Background. The Query Optimizer.

Servers 75

Servers Engineering Efficiency Retail 75

Alex Podelko

OCTOBER 28, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. Sometimes it even lead to conclusions like “performance testing hitting the wall” just because load generation may be a challenge. – Cloud.

Performance Testing 100

Performance Testing Technology Technology Testing 100

CSS - Tricks

DECEMBER 23, 2020

Lighthouse is a free and open-source tool for assessing your website’s performance, accessibility, progressive web app metrics, SEO, and more. It is a suite of tools that help you identify the impact of specific code changes on you site not just performance-wise, but in terms of SEO, accessibility, offline support, and other best practices.

Performance 78

Performance Storage Servers Virtualization 78

SQL Performance

APRIL 14, 2021

It has excellent performance, and there’s quite a lot that you can learn from it. Evaluating earlier solutions, one of the important factors in getting good performance was the ability to employ batch processing. Let’s examine the plans for two of the earlier solutions that utilized batch processing. BatchMe ; GO.

C++ 112

C++ Servers Testing Code 112

Percona

AUGUST 30, 2023

The most common parameter used by the PostgreSQL server (postmaster) will be PGDATA, which sets the parameter data_directory. Here is an example: $ export PGDATA=/home/postgres/data $ export PGPORT=5434 $ pg_ctl start waiting for server to start.2023-08-04 But changing this is possible only at the server startup.

Database 105

Database Servers Open Source Tuning 105

CSS - Tricks

AUGUST 18, 2020

Yet, this criticism of React isn’t completely unwarranted: React and ReactDOM total about 120 KiB of minified JavaScript, which definitely contributes to slow startup time. Even if you render components on the server and hydrate them on the client, it still churns because component hydration is computationally expensive.

Performance 101

Performance Mobile Servers Code 101