The Netflix TechBlog

JUNE 4, 2019

We were able to meaningfully improve both the predictability and performance of these containers by taking some of the CPU isolation responsibility away from the operating system and moving towards a data driven solution involving combinatorial optimization and machine learning.

Cache 251

Cache Latency Airlines Logistics 251

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. I had attended these events when I was based in the UK, but became one of the organizers.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Percona

JUNE 20, 2023

The following are possible causes for segmentation fault: Operating system issues Buggy OS kernel Faulty hardware(specifically memory) Bug in a product (e.g., mysqld] core-file Note: In an event of a crash, the OS dumps all the contents from memory in the core file.

Programming 83

Programming C++ Database Virtualization 83

Percona

AUGUST 30, 2023

Any organization that uses personal and other sensitive data must have a firm, proven plan for business continuity in the event of a disaster or cyberattack. Losing access to or control of data for an extended period of time will disrupt operations, lead to financial losses, and damage an organization’s reputation.

Database 87

Database Hardware Open Source Strategy 87

Dynatrace

JANUARY 26, 2021

Traditional computing models rely on virtual or physical machines, where each instance includes a complete operating system, CPU cycles, and memory. There is no need to plan for extra resources, update operating systems, or install frameworks. The provider is essentially your system administrator.

Serverless 244

Serverless Efficiency Lambda Azure 244

Dynatrace

DECEMBER 8, 2021

When an application runs on a single large computing element, a single operating system can monitor every aspect of the system. Modern operating systems provide capabilities to observe and report various metrics about the applications running. Just as the code is monolithic, so is the logging.

Cloud 226

Cloud Serverless Hardware Operating System 226

Dynatrace

JUNE 25, 2020

Dynatrace Managed is intrinsically highly available as it stores three copies of all events, user sessions, and metrics across its cluster nodes. This means that Dynatrace continues full operation when a majority of nodes are up and a maximum of two nodes are down at a time. Dynatrace news. Self-contained turnkey solution.

Availability 247

Availability Hardware Latency Traffic 247

Dynatrace

SEPTEMBER 29, 2021

Think of containers as the packaging for microservices that separate the content from its environment – the underlying operating system and infrastructure. An orchestration platform needs to expose data about its internal states and activities in the form of logs, events, metrics, or transaction traces. Observability.

Open Source 302

Open Source Traffic DevOps Cloud 302

Dynatrace

NOVEMBER 15, 2021

A log is a detailed, timestamped record of an event generated by an operating system, computing environment, application, server, or network device. Logs can include data about user inputs, system processes, and hardware states.

Analytics 209

Analytics Monitoring Artificial Intelligence DevOps 209

Smashing Magazine

JANUARY 15, 2019

The vast majority of climate scientists attribute the increasing ferocity and frequency of extreme weather events around the world to climate change, which they largely attribute to human activity. how much data does the browser have to download to display your website) and resource usage of the hardware serving and receiving the website.

Website Performance 73

Website Performance Website Energy Performance 73

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., In this paper we explore the implications microservices have across the cloud system stack. Hardware implications. Operating system and network implications. ASPLOS’19.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Dynatrace

NOVEMBER 22, 2022

An always-on infrastructure provides the foundation for system availability that can deliver five-nines availability. Traditionally, teams achieve this high level of uptime using a combination of high-capacity hardware, system redundancy, and failover models. Gather observability data from all digital touchpoints.

Infrastructure 183

Infrastructure Availability Systems Retail 183

Randon ASCII

OCTOBER 4, 2020

First, a bit of operating-system design context. This actually shouldn’t be done very often – threads should normally be waiting on events rather than timers – but it is sometimes necessary. The answer is hardware interrupts. If any of my conclusions are wrong then please let me know and I will update this.

Programming 145

Programming Games Hardware Operating System 145

Alex Russell

MARCH 9, 2024

In both cases, the OS will task the browser team to heavily prioritise integrations with the latest OS and hardware features at the expense of more broadly useful capabilities — e.g. shipping "notch" CSS and "force touch" events while neglecting Push.

Benchmarking 59

Benchmarking Strategy Internet Internet 59

HammerDB

FEBRUARY 25, 2021

For this reason we need to implement our database sessions in the form of operating system threads. This is possible because the Tcl interpreter is exceptionally compact and lightweight (Also for this reason Tcl is often used as an embedded language in hardware such as Cisco Routers). Tcl Multithreading in parallel.

Programming 67

Programming Benchmarking Virtualization C++ 67

HammerDB

JUNE 27, 2022

It enables the user to measure database performance and make comparative judgements about database hardware and software. HammerDB has graphical and command line interfaces for the Windows and Linux operating systems. Note that HammerDB can also implement a scaled workload with a feature called event-driven scaling.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

SQL Server According to Bob

DECEMBER 18, 2018

The operating system signals completion when the I/O stack finishes the request. Linux provides different system calls (syscall)/commands for asynchronous behavior. Receive the data write complete event in the block device’s write completion routine. You can explore your system using the df and lsblk commands.

Servers 90

Servers Media Cache Storage 90

Dotcom-Montior

NOVEMBER 24, 2021

Synchronization is achieved through a logical clock to maintain and order events. State is distributed through the system. Software and hardware components are autonomous and execute tasks concurrently. The interconnections between nodes and the rest of the system makes it possible to communicate and share data efficiently.

Systems 74

Systems Monitoring Hardware Network 74

The Morning Paper

MARCH 1, 2020

The ideal isolation solution would have the following properties: Strong isolation (multiple functions on the same hardware, protected against privilege escalation, information disclosure, covert channels, and other risks). This also makes any solution very sensitive to per-function (per isolation unit) overheads.

Serverless 101

Serverless Virtualization Lambda AWS 101

SQL Server According to Bob

JANUARY 11, 2020

This is referred to as ​​ serializability ​​ because it provides the system with the ​​ capability ​​ to reload the starting data and replay a series of transactions to end up with the data in the same state it was in after the original transactions were performed.

Servers 40

Servers Cache Media Hardware 40

J. Paul Reed

FEBRUARY 27, 2019

Many organizations base their entire process of understanding incidents on the concept, and many of the techniques they use to facilitate that understanding, such as “The Five Whys,” are firmly rooted in this concept of a “linearity of events.” It’s just an operating system or networking bug. but deceptive none the less?—?always

Entertainment 40

Entertainment Operating System Engineering Hardware 40

O'Reilly Software

APRIL 4, 2018

Are there “Black Friday” events in our business? We can see a table as an consolidated view of a stream of events over time. Likewise, we can create a stream from the observable changes applied to a table, reported as events. How large is each message? How many messages per time unit do we expect? Are there peak hours?

Architecture 80

Architecture Scalability Google Operating System 80

SQL Server According to Bob

JANUARY 11, 2020

Subsystem / Path The ​​ I/O subsystem or path ​​ includes ​​ those ​​ components ​​ that are ​​ used to support an I/O operation. ​​ A ​​ pull-the-plug ​​ event occurs so the tail of the backup stream is lost.

Servers 40

Servers Cache Database Media 40

Percona

AUGUST 30, 2018

Because recognizing if the workload is read intensive or write intensive will impact your hardware choices, database configuration as well as what techniques you can apply for performance optimization and scalability. You can also choose to look at event counts or at the time it takes to do operations.

Benchmarking 47

Benchmarking Database Operating System Architecture 47

High Scalability

SEPTEMBER 14, 2018

events processed to date 300k+ users globally 50% of the Fortune 100 use @pagerduty 10,500+ customers of every size 300+ integrations ?? Thus, despite both quoting 11 nines of durability against hardware failures, S3 is durable against failures that B2 is not, and is thus better. They'll love you even more. RachFrieee : 3.6B

Internet 30

Internet Internet Scalability Education 30

Adrian Cockcroft

NOVEMBER 11, 2019

A learning organization, disaster recovery testing, game days, and chaos engineering tools are all important components of a continuously resilient system. This discussion focuses on hardware, software and operational failure modes. that are used across multiple applications.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

A learning organization, disaster recovery testing, game days, and chaos engineering tools are all important components of a continuously resilient system. This discussion focuses on hardware, software and operational failure modes. that are used across multiple applications.

Latency 53

Latency Engineering Systems Hardware 53

High Scalability

NOVEMBER 25, 2019

What is the name of your system and where can we find out more about it? CFS(cloud file system), EOS (Egnyte object store), Content Security, Event Sync, Search Service, User behavior based recommendation service form major parts of the system. What is your system used for? Real-Time event delivery.

Architecture 52

Architecture Cache Azure Storage 52

Smashing Magazine

JANUARY 7, 2019

Custom metrics measure a particular, custom event for the user, e.g. Twitter’s Time To First Tweet and Pinterest’s PinnerWaitTime. For that one, you can monitor Hero Rendering Times , or use Performance API , marking particular timestaps for events that are important for your business. Image credit: Addy Osmani ) ( Large preview ).

Performance 104

Performance Cache Metrics Network 104