Availability, Cache, Example and Systems - Technology Performance Pulse

Supporting Diverse ML Systems at Netflix

The Netflix TechBlog

MARCH 7, 2024

The Machine Learning Platform (MLP) team at Netflix provides an entire ecosystem of tools around Metaflow , an open source machine learning infrastructure framework we started, to empower data scientists and machine learning practitioners to build and manage a variety of ML systems. For many of our applications, model explainability matters.

Systems

Systems Media Cache Open Source

Dynatrace accelerates business transformation with new AI observability solution

Dynatrace

JANUARY 31, 2024

GenAI is prone to erratic behavior due to unforeseen data scenarios or underlying system issues. For example, a Stanford University and UC Berkeley team noted in a research study that ChatGPT behavior deteriorates over time. Failure to provide timely and accurate answers erodes user trust, hinders adoption, and harms retention.

Cache

Cache Azure Infrastructure Monitoring

Improved Alerting with Atlas Streaming Eval

The Netflix TechBlog

APRIL 27, 2023

Engineers want their alerting system to be realtime, reliable, and actionable. A few years ago, we were paged by our SRE team due to our Metrics Alerting System falling behind — critical application health alerts reached engineers 45 minutes late! In other words, false positives are bad but false negatives are the absolute worst!

Storage

Storage Cache Metrics Database

Crucial Redis Monitoring Metrics You Must Watch

Scalegrid

JANUARY 25, 2024

Effective management of memory stores with policies like LRU/LFU proactive monitoring of the replication process and advanced metrics such as cache hit ratio and persistence indicators are crucial for ensuring data integrity and optimizing Redis’s performance. Cache Hit Ratio The cache hit ratio represents the efficiency of cache usage.

Metrics

Metrics Monitoring Latency Cache

Sustainable IT: Optimize your hybrid-cloud carbon footprint

Dynatrace

DECEMBER 21, 2023

You might optimize your cooling system or move your data center to a colder region with reduced cooling demands. And while these examples were resolved by just asking a few questions, in many cases, the answers are more elusive, requiring real-time and historical drill-downs into the processes and dependencies specific to each host.

Cloud

Cloud Energy Best Practices Cache

Migrating Critical Traffic At Scale with No Downtime?—?Part 1

The Netflix TechBlog

MAY 4, 2023

Behind the scenes, a myriad of systems and services are involved in orchestrating the product experience. These backend systems are consistently being evolved and optimized to meet and exceed customer and product expectations. It provides a good read on the availability and latency ranges under different production conditions.

Traffic

Traffic Latency Tuning Systems

Implementing AWS well-architected pillars with automated workflows

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. For example, optimizing resource utilization for greater scale and lower cost and driving insights to increase adoption of cloud-native serverless services.

AWS

AWS Efficiency Azure Cloud

Software Testing Errors to look out for (with examples)

Testsigma

JUNE 3, 2021

Example: An e-commerce website is unable to process the payment part. On-screen information for users: The information which is required by the user should be available on the application screen itself. He may think that the software got stuck and a system restart is needed. The UI is meant to be intuitive and easy for the user.

Software

Software Software Testing Hardware

The road to observability with OpenTelemetry demo part 1: Identifying metrics and traces

Dynatrace

MAY 17, 2023

Anyone who’s concerned with developing, delivering, and operating software knows the importance of making software and the systems it runs on observable. With observability, you can get a better understanding of how your systems behave and what they do, especially in case of errors. Why should I adopt observability?

Metrics

Metrics Open Source Traffic Cache

Predictive CPU isolation of containers at Netflix

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. This avoids thrashing caches too much for B and evens out the pressure on the L3 caches of the machine.

Cache

Cache Latency Airlines Logistics

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

Speed Curve

FEBRUARY 5, 2024

Caching the base page/HTML is common, and it should have a positive impact on backend times. Key things to understand from your CDN Cache Hit/Cache Miss – Was the resource served from the edge, or did the request have to go to origin? In the case of a cache miss, this should be zero.)

Servers

Servers Cache Retail Benchmarking

MySQL Key Performance Indicators (KPI) With PMM

Percona

JUNE 22, 2023

Let’s dive in and learn how (and what) to effectively monitor MySQL performance, along with examples from PMM, by understanding the critical KPIs to watch for. This includes metrics such as query execution time, the number of queries executed per second, and the utilization of query cache and adaptive hash index.

Performance

Performance Monitoring Traffic Database

Is ANALYZE TABLE Safe on a Busy MySQL Database Server?

Percona

NOVEMBER 1, 2023

Without going further into the reasons for such a need, I wanted to refresh this subject in terms of overhead related to running the command on production systems. A lot has changed since then, but many production systems alive today still run with affected versions. There were no improvements in the 5.7 is affected.

Servers

Servers Database Cache C++

20X Faster Backup Preparation With Percona XtraBackup 8.0.33-28!

Percona

JULY 25, 2023

They are then applied (for example, writing old values back again) to the pages again and written to disk. After the “data dictionary” (DD) engine and DD cache are initialized on a server, the Storage Engines can ask for a table definition. Let’s take a look at the example table. CREATE TABLE test.t1(a

Cache

Cache Benchmarking Servers Design

Application vulnerabilities: Important lessons from the OWASP top 10 about application security risks

Dynatrace

MARCH 22, 2023

For these, it’s important to turn off auto-completing forms, encrypt data both in transit and at rest with up-to-date encryption techniques, and disable caching on data collection forms. Identification and authentication failures Unauthorized users can access a system because of weak security or session management functions.

Open Source

Open Source Artificial Intelligence Internet Internet

Book Review: PostgreSQL 14 Internals by Egor Rogov

Percona

NOVEMBER 7, 2023

The book PostgreSQL 14 Internals has been available in PDF format for quite a while, but recently, the ability to order a printed copy became available ( [link] ). This 548-page tome from PostgresPro covers the spectrum from data organization to details on the many available indexing options.

Cache

Cache Servers Operating System Database

Key Advantages of DBMS for Efficient Data Management

Scalegrid

JANUARY 5, 2024

If you’re considering a database management system, understanding these benefits is crucial. Understanding Database Management Systems (DBMS) A Database Management System (DBMS) assists users in creating and managing databases. In a DBMS, data serves as the material which the system stores, structures, and controls.

Efficiency

Efficiency Storage Database Scalability

What is session replay? Discover user pain points with session recordings

Dynatrace

DECEMBER 20, 2021

For example, the <body> element of your page exists on one branch of this tree structure, with any <img> assets branching off. Consider the example of “rage clicks,” which are rapid clicks (or taps) on the same spot when a feature is unresponsive. For example, are all user bounces caused by the same issue?

Mobile

Mobile Website Analytics Cache

Seamlessly Swapping the API backend of the Netflix Android app

The Netflix TechBlog

SEPTEMBER 8, 2020

This allows the app to query a list of “paths” in each HTTP request, and get specially formatted JSON (jsonGraph) that we use to cache the data and hydrate the UI. For example, the artwork service is separate from the video metadata service, but we need the data from both in the detail key. This meant that data that was static (e.g.

Latency

Latency Cache Java Traffic

Eliminate inefficiencies and innovate faster by optimizing hybrid mainframe environments on IBM Z

Dynatrace

JUNE 16, 2020

IBM Z systems power billions of transactions each day and are used by most Fortune 500 companies. Over the years however, classic mainframe environments have been transformed, with their services frequently linked to distributed systems or an enterprise cloud. Dynatrace news. zIIP eligible time processed on general CPU.

Innovation

Innovation Metrics Infrastructure Programming

Consistent caching mechanism in Titus Gateway

The Netflix TechBlog

NOVEMBER 3, 2022

As the number of Titus users increased over the years, the load and pressure on the system increased substantially. We introduce a caching mechanism in the API gateway layer, allowing us to offload processing from singleton leader elected controllers without giving up strict data consistency and guarantees clients observe.

Cache

Cache Latency Traffic Systems

What is a Distributed Storage System

Scalegrid

FEBRUARY 8, 2024

A distributed storage system is foundational in today’s data-driven landscape, ensuring data spread over multiple servers is reliable, accessible, and manageable. This guide delves into how these systems work, the challenges they solve, and their essential role in businesses and technology.

Storage

Storage Systems Big Data Azure

Delta: A Data Synchronization and Enrichment Platform

The Netflix TechBlog

OCTOBER 15, 2019

caching (Memcached etc.), Another issue exists for the capture of schema changes, where some systems, like MySQL, don’t support transactional schema changes [1][2]. By their nature, they can only rely on the lowest common denominator of participating systems. providing advanced search capabilities (ElasticSearch etc.),

Transportation

Transportation Architecture Processing Storage

Percona Monitoring and Management 2 Scaling and Capacity Planning

Percona

MARCH 17, 2023

For example, a higher number of data samples ingested per second or a monitoring database with a huge number of tables (1000+) can affect performance; similarly, the configuration for exporters or a custom metric resolution can also have an impact on the performance of a PMM server host. Virtual Memory utilization was averaging 48 GB of RAM.

Monitoring

Monitoring Scalability Cache Database

How To Add eBPF Observability To Your Product

Brendan Gregg

JULY 2, 2021

This is also applicable for people adding it to their own in-house monitoring systems. You likely already have agents running on all your customer systems. There are so many options it's really your own preference based on your existing system and customer environments. cachestat File system cache statistics line charts.

Latency

Latency Cache Energy Systems

How PHP Web Development Beneficial For Online Business?

Official Blog - World Web Technology

AUGUST 27, 2023

For example, website design is very crucial to impress your website visitors. Also, high-quality documentation is available for developers with any development issues and queries. For example, integrating PHP with MySQL can help developers build ecommerce websites with powerful back-ends.

Development

Development Ecommerce Open Source Website

MySQL Performance Tuning 101: Key Tips to Improve MySQL Database Performance

Percona

SEPTEMBER 1, 2023

This results in expedited query execution, reduced resource utilization, and more efficient exploitation of the available hardware resources. Resource contention emerges when multiple database operations vie for the same system resources simultaneously. This can significantly elevate user satisfaction and engagement.

Tuning

Tuning Database Performance Hardware

Breaking Down Bulky Builds With Netlify And Next.js

Smashing Magazine

JUNE 29, 2021

For example, if your app has multiple pages (views, routes) when generating the deployment artifact, each of those routes becomes a file. For the end-user to actually benefit from this improvement there are cache invalidation strategies that must be considered. The cache is invalidated on a time basis. On-Demand Builders.

Cache

Cache Website Strategy Traffic

Bring Your Own Cloud (BYOC) vs. Dedicated Hosting at ScaleGrid

Scalegrid

APRIL 16, 2020

Each of these models is suitable for production deployments and high traffic applications, and are available for all of our supported databases, including MySQL , PostgreSQL , Redis™ and MongoDB® database ( Greenplum® database coming soon). Let’s walk through an example: Database: MySQL. Cloud Provider: AWS. Startup Hosting Credits.

Cloud

Cloud Azure AWS Database

The Amazing Evolution of In-Memory Computing

ScaleOut Software

JUNE 22, 2020

From Distributed Caches to Real-Time Digital Twins. Going back to the mid-1990s, online systems have seen relentless, explosive growth in usage, driven by ecommerce, mobile applications, and more recently, IoT. Parallel query enables stored objects on all servers to be scanned simultaneously to retrieve objects with desired properties.

Ecommerce

Ecommerce Cache Scalability IoT

The Amazing Evolution of In-Memory Computing

ScaleOut Software

JUNE 22, 2020

From Distributed Caches to Real-Time Digital Twins. Going back to the mid-1990s, online systems have seen relentless, explosive growth in usage, driven by ecommerce, mobile applications, and more recently, IoT. Parallel query enables stored objects on all servers to be scanned simultaneously to retrieve objects with desired properties.

Ecommerce

Ecommerce Cache Scalability IoT

Percentiles don’t work: Analyzing the distribution of response times for web services

Adrian Cockcroft

JANUARY 29, 2023

The common way to deal with this is to measure percentiles, and track the 90%, 99% response times for example. For example lets say you have a 99% within 2 seconds SLA, and your current 99%ile measured over one minute is 1 second. There is no way to model how much more traffic you can send to that system before it exceeds it’s SLA.

Lambda

Lambda Latency Cache C++

Cache and Prizes

Alex Russell

MARCH 31, 2022

Browsers will cache tools popular among vocal, leading-edge developers. There's plenty of space for caching most popular frameworks. The best available proxy data also suggests that shared caches would have a minimal positive effect on performance. Suppose a user has only downloaded part of the cache.

Cache

Cache Government Traffic Network

How It Works (It Just Runs Faster): Non-Volatile Memory SQL Server Tail Of Log Caching on NVDIMM

SQL Server According to Bob

NOVEMBER 8, 2016

Note: We received feedback that there was some confusion on us calling this functionality “tail of the log caching” because our documentation and prior history has referred to the tail of the log as the portion of the hardened log that has not been backed up. Announcement and Syntax Example: [link]. . Tail Of Log Caching.

Cache

Cache Servers Media Storage

Laravel For Healthcare App Development: Why So Obvious?

Tech News Gather

JULY 18, 2023

With quality healthcare app development , patients as well as healthcare service providers have the chance to avail a more streamlined and faster service on-demand. Thus, with such apps, we can reduce the risk of infection and ease the burden on the healthcare system.

Healthcare

Healthcare Social Media Development Artificial Intelligence

MongoDB Docker Installation: Everything You Need to Know

Percona

NOVEMBER 1, 2023

Docker containers are small, executable, standalone packages that come with all the components—code, runtime, libraries, and system tools—necessary to run a piece of software. In the below example, we connected to the mongodb_dockerhub36. In the example below, I will show how to set the WiredTiger cache.

Scalability

Scalability Best Practices Servers Database

How to Monitor Online InnoDB Buffer Pool Resizing

Percona

DECEMBER 20, 2023

The InnoDB buffer pool acts as a powerhouse for MySQL, caching frequently accessed data and index pages in memory to accelerate query performance. Buffer pool resizing operation status codes Buffer pool resize monitoring in action Let’s dive into a practical example to demonstrate how to leverage these variables.

Monitoring

Monitoring Code Open Source Cache

Are Imposter Domains Re-Publishing Your Website?

Smashing Magazine

SEPTEMBER 20, 2021

For example, someone might web scrape all the product pages of a competitor’s retail site to harvest information about products being offered and current pricing to try to gain a competitive edge. Search Engine And Web Archive Cached Results. The message that appears above a cached search result in Google’s search service.

Website

Website Analytics Google Cache

How to Install or Upgrade Percona Server for MySQL/MySQL 8 to a Specific Version on Debian/Ubuntu

Percona

JUNE 15, 2023

The reason might be application requirements, compatibility issues, or MySQL bug fixes, or we want the same MySQL version to be installed on all database instances in the cluster, regardless of what actually is the latest version available. For example, to enable the Percona Server 8.0 Check the available Percona Server for MySQL 8.0

Servers

Servers C++ Database Systems

Creating A Magento PWA: Customizing Themes vs. Coding From Scratch

Smashing Magazine

NOVEMBER 2, 2021

Below is an example of the Netatmo PWA. Check out how the “Add to Home Screen” feature works on the example below taken on the Apivita Magento PWA. But this “look” is now available in browsers. To specify, users can continue using those parts of the site that were cached if the Internet connection is unstable or when offline.

Code

Code Cache Retail Mobile

Why Web Developers Choose PHP For Great Website Development?

Official Blog - World Web Technology

NOVEMBER 9, 2023

On top of that, PHP is used to run famous content management systems like Joomla, WordPress, and Drupal. Community-wide Support Available Another significant benefit of PHP is its large and active community of developers. Creating tools and systems and offering online resources help the language keep growing and improving.

Website

Website Development Open Source Database

A thorough introduction to bpftrace

Brendan Gregg

AUGUST 18, 2019

For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. This example instrumented one of many thousands of available events. Now a real example: # bpftrace -e 'kretprobe:sys_read /pid == 181/ { @bytes = hist(retval); }'. system(".")

Latency

Latency C++ Cache Programming

Optimize Images for Web

KeyCDN

SEPTEMBER 12, 2019

For example, this would occur if an image being served has an original width of 1460 pixels but is being served at 730 pixels to fit in the container that it has been placed in. The PHP library for the API is available on GitHub. KeyCDN’s Cache Enabler plugin is fully compatible the HTML attributes that make images responsive.

Social Media

Social Media Media Google Website

Expanding the Cloud with DNS - Introducing Amazon Route 53 - All.

All Things Distributed

DECEMBER 5, 2010

Werner Vogels weblog on building scalable and robust distributed systems. I am very excited that today we have launched Amazon Route 53, a high-performance and highly-available Domain Name System (DNS) service. Naming is one of the fundamental concepts in Distributed Systems. By Werner Vogels on 05 December 2010 02:00 PM.

Cloud

Cloud Internet Internet AWS

Supporting Diverse ML Systems at Netflix

Dynatrace accelerates business transformation with new AI observability solution

Trending Sources

Improved Alerting with Atlas Streaming Eval

Crucial Redis Monitoring Metrics You Must Watch

Sustainable IT: Optimize your hybrid-cloud carbon footprint

Migrating Critical Traffic At Scale with No Downtime?—?Part 1

Implementing AWS well-architected pillars with automated workflows

Software Testing Errors to look out for (with examples)

The road to observability with OpenTelemetry demo part 1: Identifying metrics and traces

Predictive CPU isolation of containers at Netflix

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

MySQL Key Performance Indicators (KPI) With PMM

Is ANALYZE TABLE Safe on a Busy MySQL Database Server?

20X Faster Backup Preparation With Percona XtraBackup 8.0.33-28!

Application vulnerabilities: Important lessons from the OWASP top 10 about application security risks

Book Review: PostgreSQL 14 Internals by Egor Rogov

Key Advantages of DBMS for Efficient Data Management

What is session replay? Discover user pain points with session recordings

Seamlessly Swapping the API backend of the Netflix Android app

Eliminate inefficiencies and innovate faster by optimizing hybrid mainframe environments on IBM Z

Consistent caching mechanism in Titus Gateway

What is a Distributed Storage System

Delta: A Data Synchronization and Enrichment Platform

Percona Monitoring and Management 2 Scaling and Capacity Planning

How To Add eBPF Observability To Your Product

How PHP Web Development Beneficial For Online Business?

MySQL Performance Tuning 101: Key Tips to Improve MySQL Database Performance

Breaking Down Bulky Builds With Netlify And Next.js

Bring Your Own Cloud (BYOC) vs. Dedicated Hosting at ScaleGrid

The Amazing Evolution of In-Memory Computing

The Amazing Evolution of In-Memory Computing

Percentiles don’t work: Analyzing the distribution of response times for web services

Cache and Prizes

How It Works (It Just Runs Faster): Non-Volatile Memory SQL Server Tail Of Log Caching on NVDIMM

Laravel For Healthcare App Development: Why So Obvious?

MongoDB Docker Installation: Everything You Need to Know

How to Monitor Online InnoDB Buffer Pool Resizing

Are Imposter Domains Re-Publishing Your Website?

How to Install or Upgrade Percona Server for MySQL/MySQL 8 to a Specific Version on Debian/Ubuntu

Creating A Magento PWA: Customizing Themes vs. Coding From Scratch

Why Web Developers Choose PHP For Great Website Development?

A thorough introduction to bpftrace

Optimize Images for Web

Expanding the Cloud with DNS - Introducing Amazon Route 53 - All.

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