Adrian Cockcroft

JUNE 21, 2022

Photo by Adrian I spent six years at Cambridge Consultants, building some interesting systems, managing our Sun workstations and learning a lot, but by then Sun had opened a sales office across the street, and I wanted to find out what they were going to release next, before everyone else.

Tuning 52

Tuning Benchmarking Engineering C++ 52

All Things Distributed

AUGUST 17, 2011

Werner Vogels weblog on building scalable and robust distributed systems. As some of you may remember I was pretty excited when Amazon Simple Storage Service (S3) released its website feature such that I could serve this weblog completely from S3. Driving Storage Costs Down for AWS Customers. All Things Distributed.

Servers 126

Servers Social Media AWS Website 126

O'Reilly

DECEMBER 2, 2019

The most obvious change 5G might bring about isn’t to cell phones but to local networks, whether at home or in the office. High-speed networks through 5G may represent the next generation of cord cutting. Those waits can be significant, even if you’re on a corporate network. Let’s get back to home networking.

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

Smashing Magazine

AUGUST 23, 2019

In the network tab of the developer console you can check that we have not loaded the complete image, but only a small part. Network console when loading the preview image ( Large preview ). Network console when loading the preview image as data URI ( Large preview ). Network console when loading the entire image (31.7

Network 103

Network Servers Programming Code 103

Smashing Magazine

JANUARY 15, 2019

This includes the work done by the server, the client and the intermediary communications networks that transmit data between the two. An obvious metric here is CPU usage, but memory usage and other forms of data storage also play their part. All of the major browsers provide developer tools that allow us to measure network activity.

Website Performance 73

Website Performance Website Energy Performance 73

The Morning Paper

JUNE 13, 2019

Perhaps inspired by serverless in spirit and in terminology, the path forward proposed in this paper is towards a managed and model-less inference serving system. Managed here means that the system automates resource provisioning for models to match a set of SLO constraints (cf. autoscaling). Model-less is more confusing.

Hardware 58

Hardware Latency Serverless Energy 58

The Morning Paper

SEPTEMBER 5, 2019

The ability to compute quantiles over aggregated metrics has been recognized to be an essential feature of any monitoring system… Given how expensive calculating exact quantiles can be for both storage and network bandwidth, most monitoring system will compress the data into sketches and compute approximate quantiles.

Latency 52

Latency Metrics Open Source Java 52

Dynatrace

NOVEMBER 11, 2022

Therefore, they need an environment that offers scalable computing, storage, and networking. Hyperconverged infrastructure (HCI) is an IT architecture that combines servers, storage, and networking functions into a unified, software-centric platform to streamline resource management. What is hyperconverged infrastructure?

Infrastructure 194

Infrastructure Storage Virtualization Network 194

Percona

AUGUST 30, 2023

Without data backup mechanisms, there can be data loss or system downtime. Even worse, entire operating systems can crash, also resulting in data loss. An incremental backup, which is faster and requires less storage than a full backup, captures changes made since the previous backup. Similarly, accidental deletion is a culprit.

Database 89

Database Hardware Open Source Strategy 89

Smashing Magazine

SEPTEMBER 20, 2021

And of course, scrapers could scrape your site to look for security vulnerabilities or exposed contact or sales lead details. These are page views loaded from a previously-viewed web page that was saved to device local storage. None of these activities would result in the scraped content being re-published or delivered to end-users.

Website 89

Website Analytics Google Cache 89

Percona

APRIL 24, 2023

The urge to create more and more indexes is found to be causing severe damage in many systems. Many times, removing indexes is what we should be doing first before considering any new indexes for the benefit of the entire system. This post is about PostgreSQL, but most of the problems also apply to other database systems.

Tuning 127

Tuning Cache Storage Database 127

SQL Performance

JUNE 10, 2020

The relational model and the standard querying language that is based on it are supposed to deal only with the conceptual aspects of the data and leave the physical implementation details like storage, optimization, access and processing of the data to the database platform (the implementation ). The application could end up with bugs.

C++ 109

C++ Database Servers Code 109

SQL Performance

JUNE 10, 2020

The relational model and the standard querying language that is based on it are supposed to deal only with the conceptual aspects of the data and leave the physical implementation details like storage, optimization, access and processing of the data to the database platform (the implementation ). The application could end up with bugs.

C++ 93

C++ Database Servers Code 93

ACM Sigarch

NOVEMBER 4, 2019

In particular, she highlighted her transformative MIT’78 VLSI System Design Course she designed and taught as a Visiting Professor of EECS at MIT. The best paper runner-up was “ Dynamic Multi-Resolution Data Storage ”. .

Hardware 18

Hardware Architecture Programming Innovation 18

High Scalability

OCTOBER 24, 2022

Network effects are not the same as monopoly control. Anyone can rent a rack in a colo and stand up a system. Cloud providers incur huge fixed costs for creating and maintaining a network of datacenters spread throughout the word. And even that list is not invulnerable. Does the there can be only one apply to the cloud?

Cloud 187

Cloud Hardware Infrastructure Innovation 187

Dynatrace

NOVEMBER 29, 2021

It offers automated installation, upgrades, and life cycle management throughout the container stack — the operating system, Kubernetes and cluster services, and applications — on any cloud. By removing concerns around storage, security, and lifecycle management, businesses can instead focus on application development, support, and evolution.

Monitoring 147

Monitoring DevOps Infrastructure Metrics 147

Percona

OCTOBER 18, 2023

MySQL, PostgreSQL, MongoDB, MariaDB, and others each have unique strengths and weaknesses and should be evaluated based on factors such as scalability, compatibility, performance, security, data types, community support, licensing rules, compliance, and, of course, the all-important learning curve if your choice is new to you.

Open Source 94

Open Source Database Hardware Strategy 94

Dynatrace

JULY 21, 2020

There are certain situations when an agent based approach isn’t possible, such as with network or storage devices, or a very old OS. You could of course create a custom device in Dynatrace and send data to it using our API or an ActiveGate extension.

Infrastructure 152

Infrastructure Monitoring Open Source Traffic 152

The Morning Paper

APRIL 16, 2019

Teaching rigorous distributed systems with efficient model checking Michael et al., It describes the labs environment, DSLabs , developed at the University of Washington to accompany a course in distributed systems. 175 undergraduates a year currently go through this course. EuroSys’19.

Systems 43

Systems Efficiency Testing Strategy 43

The Agile Manager

JULY 9, 2010

With stability comes confidence in the financial system (a confidence underwritten by federal deposit insurance), and that confidence is a pillar of a strong society. Instead of producing large returns, of course, investment banking can produce large losses. Investment banks are vastly different. So, that's banking.

Retail 45

Retail Technology Technology Small Business 45

Percona

JULY 7, 2023

Also, in general terms, a high availability PostgreSQL solution must cover four key areas: Infrastructure: This is the physical or virtual hardware database systems rely on to run. Without enough infrastructure (physical or virtualized servers, networking, etc.), there cannot be high availability.

Availability 85

Availability Open Source Architecture Database 85

The Morning Paper

DECEMBER 8, 2019

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data. PLOS’19.

Hardware 56

Hardware Programming Media Storage 56

The Morning Paper

FEBRUARY 6, 2020

Oh, and there’s a scheduler too of course to keep all the plates spinning. The canononical cloud platform architecture decouples storage and compute services so that each can be scaled and operated independently, i.e., they are disaggregated. Cloudburst’s design includes consistent mutable caches in the compute tier.

Lambda 98

Lambda Serverless Cache Latency 98

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. Physalia is designed to offer consistency and high-availability, even under network partitions. A guiding principle.

Database 106

Database AWS Network Design 106

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Some disruption might occur, but it will be minimal. Fault tolerance aims for zero downtime and data loss.

Availability 109

Availability Database Open Source Hardware 109

Scalegrid

JANUARY 8, 2019

Simply put, in a MySQL semisynchronous replication configuration, the master commits transactions to the storage engine only after receiving acknowledgement from at least one of the slaves. This is essentially as described by the CAP theorem about the limitations of any distributed system. What is MySQL Semisynchronous Replication?

Availability 113

Availability Tuning Speed Network 113

The Morning Paper

FEBRUARY 20, 2020

Raven is the system that Microsoft built to explore this question, and answer it with a resounding yes. … based on interactions with enterprise customers, we expect that storage and inference of ML models will be subject to the same scrutiny and performance requirements of sensitive/mission-critical operational data. .

Processing 72

Processing Hardware Database Azure 72

All Things Distributed

APRIL 27, 2011

Werner Vogels weblog on building scalable and robust distributed systems. And while many of our systems are based on the latest in computer science research, this often hasnt been sufficient: our architects and engineers have had to advance research in directions that no academic had yet taken. All Things Distributed. Comments ().

Technology 151

Technology Technology AWS Storage 151

Alex Russell

JULY 14, 2021

The predominant desktop situation is relatively straightforward: Browsers handle links, and non-browsers defer loading http and https URLs to the system, which in turn invokes the default browser. Instead, they load content referred by their hosting native app in system-provided WebViews. The Baseline Scenario #.

Google 121

Google Mobile Engineering Internet 121

Highly Scalable

SEPTEMBER 18, 2012

As such, it encompasses distributed system coordination, failover, resource management and many other capabilities. These developments gradually highlight a system of relevant database building blocks with proven practical efficiency. System Coordination. Scalability is one of the main drivers of the NoSQL movement.

Database 213

Database Latency C++ Scalability 213

The Morning Paper

JUNE 23, 2019

Coupled with stateless application servers to execute business logic and a database-like system to provide persistent storage, they form a core component of popular data center service archictectures. Why are developers using RInK systems as part of their design? Fetching too much data in a single query (i.e., Who knew! ;).

Cache 79

Cache Latency Google Lambda 79

The Morning Paper

JANUARY 26, 2020

In the context of the papers we’ve been looking at recently, and for a constrained environment, Reverb is helping its users to form an accurate mental model of the system state, and to form and evaluate hypotheses in-situ. Reverb also take a snapshot of the client’s local storage (e.g. candidate bug-fixes) during replay.

Programming 86

Programming Servers Network Latency 86

All Things Distributed

DECEMBER 12, 2018

We launched Edge Network locations in Denmark, Finland, Norway, and Sweden. We help Supercell to quickly develop, deploy, and scale their games to cope with varying numbers of gamers accessing the system throughout the course of the day. Our AWS Europe (Stockholm) Region is open for business now.

AWS 124

AWS Cloud Games Serverless 124

Dotcom-Montior

MAY 12, 2020

Websites are now more than just the storage and retrieval of information to present content to users. They now allow users to interact more with the company in the form of online forms, shopping carts, Content Management Systems (CMS), online courses, etc. Network or connection error. Network latency. HTTP error.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

Smashing Magazine

SEPTEMBER 26, 2019

Calling this type of migration “fast” is a bit of a stretch, of course, if we talk about the whole application, but separate features clearly can be delivered to the users much faster. Microservices architecture is a set of independent services that are all connected into a network. Large preview ). Allow Host-to-Alien Access.

Architecture 73

Architecture Virtualization Servers Technology 73

IO River

NOVEMBER 2, 2023

It’s not just limited to cloud resources like AWS and Azure; Terraform is versatile, extending its capabilities to key performance areas like Content Delivery Network (CDN) management, ensuring efficient content delivery and optimal user experience.‍Started ‍AutomationCode-based systems also shine in automation.

Open Source 52

Open Source DevOps AWS Azure 52

The Morning Paper

MAY 6, 2019

What makes this much harder than it might at first appear of course, is the possibility of failures and asynchronous communication. Such issues are commonplace in some systems… Let’s begin our journey by considering one of the simplest solutions possible… The single acceptor algorithm.

Storage 77

Storage Systems Network Processing 77