Dynatrace

JANUARY 31, 2024

For production models, this provides observability of service-level agreement (SLA) performance metrics, such as token consumption, latency, availability, response time, and error count. For model explainability, they can implement custom regression tests, providing indicators of model reputation and behavior over time.

Cache 204

Cache Azure Infrastructure Monitoring 204

The Netflix TechBlog

SEPTEMBER 8, 2020

Migration Testing Infrastructure Our monolith had been around for many years and hadn’t been created with functional and unit testing in mind, so those were independently bolted on by each UI team. For the migration, testing was a first-class citizen. Replay Testing Enter replay testing.

Latency 233

Latency Cache Java Traffic 233

Smashing Magazine

AUGUST 10, 2023

Running A Page Speed Test: Monitoring vs. Measuring Running A Page Speed Test: Monitoring vs. Measuring Geoff Graham 2023-08-10T08:00:00+00:00 2023-08-10T12:35:05+00:00 This article is sponsored by DebugBear There is no shortage of ways to measure the speed of a webpage. Lighthouse results. Real usage data would be better, of course.

Speed 82

Speed Monitoring Testing Network 82

CSS Wizardry

MAY 31, 2019

Every new origin we need to visit needs a connection opening, and that can be very costly: DNS resolution, TCP handshakes, and TLS negotiation all add up, and the story gets worse the higher the latency of the connection is. On a slower, higher-latency connection, the story is much, mush worse. All completely avoidable. to just 3.6s.

Cache 274

Cache Latency Infrastructure Website 274

Percona

APRIL 17, 2023

The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all. This parameter needs to be extensively tested! On the other hand, MongoDB schema design takes a document-oriented approach.

Best Practices 52

Best Practices Design Tuning Database 52

Percona

NOVEMBER 3, 2023

Using its default tpc-b benchmark, one can stress test a database of any size ranging from a few clients to simulating thousands interacting with a system sized into the Terabytes if needs be. Steps Provisioning The first step is to provision the four nodes with both PostgreSQL and Citus.

Database 106

Database Benchmarking Latency C++ 106

The Netflix TechBlog

AUGUST 30, 2021

By Benson Ma , Alok Ahuja Introduction At Netflix, hundreds of different device types, from streaming sticks to smart TVs, are tested every day through automation to ensure that new software releases continue to deliver the quality of the Netflix experience that our customers enjoy. In this blog post, we will focus on the latter feature set.

Latency 213

Latency Traffic Transportation Cloud 213

CSS Wizardry

MAY 19, 2020

I ran the same suite of tests against the harry.is For each test, I captured the following metrics: First Paint (FP): To what extent is the critical path affected? The Google Fonts file is the only render-blocking external resource either of the two tests has, and we can see they both have the exact same first paint. Lighthouse.

Google 364

Google Media Latency Metrics 364

Dynatrace

SEPTEMBER 13, 2023

This is a set of best practices and guidelines that help you design and operate reliable, secure, efficient, cost-effective, and sustainable systems in the cloud. If so, test against the response time objective under the same Site Reliability Guardian. If both objectives pass, you have achieved your cost reduction on CPU size.

AWS 246

AWS Efficiency Azure Cloud 246

Percona

MARCH 20, 2023

When designing an architecture, many components need to be considered before deciding on the best solution. micro) The tests We will have very simple test cases. The second test will define how well the increasing load is served inside the previously identified range. That allows it to go a bit further.

Games 122

Games Latency Traffic Cache 122

Testsigma

AUGUST 24, 2020

Continuous Testing is the process of testing at all stages of software development – one after the another- without any human intervention. Continuous Testing is key to faster delivery of Agile products to the market. But the path to achieving Continuous Testing has its own challenges, most common of which are mentioned below.

Testing 69

Testing Open Source Scalability Latency 69

Dynatrace

JANUARY 13, 2022

Whereas RUM can capture all the nuances of your real users, providing a true picture into their experience, synthetic monitoring is great for proactive simulation and testing of the expected user experience. Providing insight into the service latency to help developers identify poorly performing code. Want to learn more?

Monitoring 179

Monitoring Latency Mobile Best Practices 179

Percona

MARCH 29, 2023

Snappy compression is designed to be fast and efficient regarding memory usage, making it a good fit for MongoDB workloads. So, it becomes very important to test for the optimal required use case before implementing it in production. Here, we are going to test snappy and zstd compression with the following configurations.

Storage 110

Storage Network Open Source Latency 110

Testsigma

FEBRUARY 12, 2021

With the latest developments in IT sector services, the sector of QA testing has seen significant improvement and growth. The implementation of emerging technologies has helped improve the process of software development, testing, design and deployment. Many changes are rendered through automated testing. Hyperautomation.

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

Percona

APRIL 13, 2023

In PostgreSQL, replication lag can occur due to various reasons such as network latency, slow disk I/O, long-running transactions, etc. Replication lag can occur due to various reasons, such as: Network latency: Network latency is the delay caused by the time it takes for data to travel between the primary and standby databases.

Latency 82

Latency Tuning Open Source Network 82

Dynatrace

FEBRUARY 24, 2021

As Google’s Ben Treynor explains , “Fundamentally, it’s what happens when you ask a software engineer to design an operations function.” Designating and managing Service Level Objectives (SLOs) as availability targets for a service. Reduced latency. Investing in automation and tooling to avoid toil.

DevOps 188

DevOps Software Engineering Speed Google 188

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. In Linux, the current mainstream solution is CFS (Completely Fair Scheduler). So why mess with it?

Cache 251

Cache Latency Airlines Logistics 251

Scalegrid

DECEMBER 16, 2019

They offer SSD-based cloud hosting with straightforward pricing as well starting at just $5/month , which makes it ideal (and affordable) for developers to build, test and deploy their new applications seamlessly in the cloud. What’s most impressive is that you’re not compromising performance for cost.

Azure 187

Azure AWS Latency Database 187

Scalegrid

JANUARY 8, 2024

Infrastructure Excellence ScaleGrid’s infrastructure is designed to facilitate hosting in your cloud account and provides cost-saving options with AWS or Azure Reserved Instances or GCP. Meeting Business Demands with Hybrid Cloud A range of business demands can be met by the design of hybrid cloud solutions.

Artificial Intelligence 147

Artificial Intelligence Cloud Scalability Analytics 147

Scalegrid

FEBRUARY 8, 2024

Their design emphasizes increasing availability by spreading out files among different nodes or servers — this approach significantly reduces risks associated with losing or corrupting data due to node failure. Variations within these storage systems are called distributed file systems.

Storage 130

Storage Systems Big Data Azure 130

John McCalpin

APRIL 25, 2023

link] ) For the single-core case the bandwidth reported by the STREAM benchmark kernels is very close to the same as the bandwidth for the all-read tests reported here. To understand what is happening here, we need to understand the way memory bandwidth interacts with memory latency and the concurrency (parallelism) of memory accesses.

Benchmarking 97

Benchmarking Cache Latency Tuning 97

Percona

DECEMBER 11, 2023

A Dedicated Log Volume (DLV) is a specialized storage volume designed to house database transaction logs separately from the volume containing the database tables. DLVs are particularly advantageous for databases with large allocated storage, high I/O per second (IOPS) requirements, or latency-sensitive workloads.

AWS 98

AWS Benchmarking Performance Traffic 98

Percona

JULY 20, 2023

It is designed to be very lightweight as well. Following wait events are captured from a really fast/low latency network. Case 4: Connection utilization As the network latency increases, the client connection won’t be able to use the server session to the extent possible. There will be 2,000 samples collected per session.

Network 63

Network Performance Latency Servers 63

Testsigma

JANUARY 30, 2021

About two decades ago, testing was only limited to the desktop. With the rapidly increasing use of smartphones and ease of access to the internet across the globe, testing has spread across vast platforms. The native and mobile web browser testing is being performed more and more compared to desktop testing.

Mobile 52

Mobile Testing Website Internet 52

The Morning Paper

NOVEMBER 15, 2020

With more nodes and more coordination comes more complexity, both in design and operation. This makes the whole system latency sensitive. One of the joys of this paper is that you don’t just get to see the final design, you also get insight into the forces and trade-offs that led to it. Back of the envelope.

Servers 128

Servers Hardware Latency Design 128

The Netflix TechBlog

OCTOBER 19, 2020

Now let’s look at how we designed the tracing infrastructure that powers Edgar. If we had an ID for each streaming session then distributed tracing could easily reconstruct session failure by providing service topology, retry and error tags, and latency measurements for all service calls. What’s next?

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

The Morning Paper

FEBRUARY 6, 2020

’ Stateless is fine until you need state, at which point the coarse-grained solutions offered by current platforms limit the kinds of application designs that work well. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access.

Serverless 98

Serverless Lambda Cache Latency 98

CSS Wizardry

AUGUST 13, 2019

I was doing some cursory research and running a few tests against a potential client’s site so as to get a good understanding of the shape of things before we were to work together. Although this response has a 0B filesize, we will always take the latency hit on every single page view (and this response is basically 100% latency).

Latency 203

Latency Cache Strategy Media 203

Dynatrace

OCTOBER 1, 2021

By bringing AI to everything — from gathering telemetry to analyzing what’s happening across the full technology stack — your organization can have the reliable answers essential for automating application monitoring, testing, continuous delivery, application security, and incident response. Benefits of observability.

Metrics 363

Metrics Open Source Monitoring Infrastructure 363

Dynatrace

JANUARY 31, 2024

In the age of AI, data observability has become foundational and complementary to AI observability, data quality being essential for training and testing AI models. Data observability is crucial to analytics and automation, as business decisions and actions depend on data quality.

DevOps 194

DevOps Analytics Airlines Metrics 194

Testsigma

DECEMBER 18, 2019

To improve the quality of a software product built by developers, software testing is the key. Testing is essential to ensure that the end product delivered is stable and works according to the required specifications. Test coverage has a huge impact on what is received as an end product. Training and adaptation.

Testing 73

Testing Open Source Strategy Processing 73

The Morning Paper

MARCH 3, 2020

It takes you through the thinking processes and engineering practices behind the design of a key part of the control plane for AWS Elastic Block Storage (EBS): the Physalia database that stores configuration information. This work is latency critical, because volume IO is blocked until it is complete. NSDI’20. Requirements.

Database 106

Database AWS Network Design 106

The Morning Paper

OCTOBER 6, 2019

Prediction serving latency matters. Test the business impact of your models using randomised controlled trials (follows from #2). Lesson 4: prediction serving latency matters. In a experiment introducing synthetic latency, Booking.com found that an increase of about 30% in latency cost about 0.5%

Latency 102

Latency Metrics Cache Design 102

Percona

DECEMBER 26, 2023

Although the default configuration simulates loading based loosely upon TPC-B, it is nevertheless easy to test other use cases by writing one’s own transaction script files. /bin/bash pgbench is capable of executing multiple concurrent database sessions and can calculate the average transaction rate (TPS) at the end of a run.

Benchmarking 122

Benchmarking Metrics C++ Database 122

The Morning Paper

JANUARY 30, 2020

Edge servers are the middle ground – more compute power than a mobile device, but with latency of just a few ms. The client MWW combines these estimates with an estimate of the input/output transmission time (latency) to find the worker with the minimum overall execution latency.

Mobile 104

Mobile Cloud Latency Games 104

Dynatrace

FEBRUARY 2, 2022

service availability with <50ms latency for an application with no revenue impact. To avoid this, start the SLO discussion early in the design process. This can create an unnecessary distraction and steal time away from critical tasks. For example, the IT team of a bank wants to ensure that for a trailing 30-day period there is 99.9%

DevOps 196

DevOps Metrics Best Practices Latency 196

Dynatrace

DECEMBER 2, 2021

Stable, well-calibrated SLOs pave the way for teams to automate more processes and testing throughout the software delivery life cycle (SDLC). By shifting production-level SLOs left into development , you can design apps to meet production SLOs to increase resilience and reliability far before there is actual downtime.

Metrics 191

Metrics Best Practices DevOps Infrastructure 191