CSS - Tricks

JULY 25, 2019

Estimated Input Latency. Estimated Input Latency. It’s time to come to terms that your customers aren’t using the same powerful hardware as you. An excellent substitute for using a real device is to use Chrome DevTools hardware emulation mode. There are six metrics used to create the overall performance score.

Google 71

Google Engineering Speed Mobile 71

Dynatrace

SEPTEMBER 30, 2021

It requires purchasing, powering, and configuring physical hardware, training and retaining the staff capable of servicing and securing the machines, operating a data center, and so on. They need enough hardware to serve their anticipated volume and keep things running smoothly without buying too much or too little. Reduced cost.

Cloud 165

Cloud Traffic Best Practices Strategy 165

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

The Morning Paper

JUNE 13, 2019

As we saw with the SOAP paper last time out, even with a fixed model variant and hardware there are a lot of different ways to map a training workload over the available hardware. The following figure highlights how just one of these variables, batch size, impacts throughput and latency on ResNet50.

Hardware 58

Hardware Latency Serverless Energy 58

Percona

SEPTEMBER 1, 2023

This results in expedited query execution, reduced resource utilization, and more efficient exploitation of the available hardware resources. This reduction in latency ensures that applications and websites provide a more rapid and responsive user experience.

Tuning 52

Tuning Database Performance Hardware 52

Brendan Gregg

JULY 4, 2021

I summarized these topics and more as a plenary conference talk, including my own predictions (as a senior performance engineer) for the future of computing performance, with a focus on back-end servers. This was a chance to talk about other things I've been working on, such as the present and future of hardware performance.

Performance 52

Performance Latency Hardware Storage 52

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. physics engine that simulates 3D cubes falling from the air. These use their regression models to estimate processing time (which will depend on the hardware available, current load, etc.).

Mobile 104

Mobile Cloud Latency Games 104

CSS Wizardry

OCTOBER 27, 2018

Things always always feel fast when we’re developing because, more often than not, we’re working on high-spec machines on dedicated networks, and also serving from localhost which removes the bulk of the latency and bandwidth issues that a real user would suffer. Who: Engineers. Who: Engineers, Product Owners.

Performance Testing 172

Performance Testing Testing Performance Strategy 172

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. For smaller environments, it can be of more use helping eliminate latency outliers. bpftrace uses BPF (Berkeley Packet Filter), an in-kernel execution engine that processes a virtual instruction set.

Latency 68

Latency C++ Cache Programming 68

Percona

JUNE 22, 2023

Another related variable, innodb_buffer_pool_instances, determines the number of buffer pool instances for the InnoDB storage engine, which can improve the performance of multi-core systems by reducing contention on the buffer pool latch.

Performance 104

Performance Monitoring Traffic Database 104

Percona

MAY 2, 2023

At the same time that I see database engineers relying on the tool, sites such as StackOverflow are banning ChatGPT. However, it’s important to note that the optimal value may vary depending on your specific workload and hardware configuration. 16) and monitoring the server’s performance. Let’s make it harder now.

Social Media 120

Social Media Database Servers Cache 120

Dotcom-Montior

DECEMBER 8, 2021

In the world of a site reliability engineer (SRE) , failure is not only an option, but also expected. In a different article, we talked about chaos engineering and how SRE teams proactively seek out and test for failures to prevent the worst from happening. Read : Top 13 Site Reliability Engineer (SRE) Tools. Asset Management.

Social Media 90

Social Media Monitoring Latency DevOps 90

Abhishek Tiwari

JULY 12, 2018

These data pipelines can process data at petabytes scale and to some extent, their success can be attributed to an army of engineers devoted to build and maintain internal data pipelines. Not everyone is operating at Netflix or Spotify scale data engineering function. A data pipeline is a software which runs on hardware.

Latency 63

Latency Analytics Scalability Engineering 63

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Smashing Magazine

AUGUST 3, 2021

Fortunately, we as engineers can avoid, or at least mitigate the impact of breakages in the web apps we build. Engineers need visibility on the root cause behind a degraded experience. Even errors not surfaced to end-users (secondary errors) must propagate to engineers. More after jump! Observability. Large preview ).

Network 145

Network Engineering Availability Monitoring 145

The Netflix TechBlog

FEBRUARY 9, 2021

Growth Engineering at Netflix?—?Automated In the Growth Engineering team, we refer to this as the top of the signup funnel. For more background on the signup funnel and Growth Engineering’s role in the signup funnel, please read our initial post on the topic: Growth Engineering at Netflix? Accelerating Innovation.

Engineering 165

Engineering Storage Latency Entertainment 165

Abhishek Tiwari

DECEMBER 27, 2017

Kubernetes has emerged as go to container orchestration platform for data engineering teams. Using default scheduler's node affinity feature you can ensure that certain pods only schedule on nodes with specialized hardware like GPU, memory-optimised, I/O optimised etc. Kubernetes has a massive community support and momentum behind it.

Big Data 63

Big Data Storage Benchmarking Hardware 63

Dynatrace

JUNE 25, 2020

The network latency between cluster nodes should be around 10 ms or less. Our Premium High Availability comes with the following features: Active-active deployment model for optimum hardware utilization. – A Dynatrace customer, Head of Performance Engineering. Automatic recovery for outages for up to 72 hours.

Availability 247

Availability Hardware Latency Traffic 247

All Things Distributed

JULY 13, 2010

In particular this has been true for applications based on algorithms - often MPI-based - that depend on frequent low-latency communication and/or require significant cross sectional bandwidth. There is no more need for hardware tinkering to keep the clusters up and running (I spent many nights doing this; there is no glory in it).

Cloud 118

Cloud AWS Automotive Latency 118

Dynatrace

SEPTEMBER 29, 2020

On one hand, they enable our engineers to get their latest enhancements deployed into production. Sydney, we have a disk write latency problem! It was on August 25 th at 14:00 when Davis initially alerted on a disk write latency issues to Elastic File System (EFS) on one of our EC2 instances in AWS’s Sydney Data Center.

Infrastructure 180

Infrastructure Cloud Monitoring AWS 180

Testsigma

JANUARY 30, 2021

Each smartphone comes with various screen sizes and resolutions, operates on different network speeds, and has different hardware capabilities. Test how user-friendly an application is: Google search engine gives high priority to websites in comparison to desktop apps. Google ranks applications based on how user friendly it is.

Mobile 52

Mobile Testing Website Internet 52

Scalegrid

DECEMBER 21, 2023

Identifying key Redis® metrics such as latency, CPU usage, and memory metrics is crucial for effective Redis monitoring. To monitor Redis® instances effectively, collect Redis metrics focusing on cache hit ratio, memory allocated, and latency threshold. It is important to understand these challenges properly to find solutions for them.

Strategy 130

Strategy Monitoring Latency DevOps 130

Adrian Cockcroft

MARCH 17, 2020

In addition to the common financial calculation of risk as the product of probability and severity, engineering risk includes detectability. A learning organization, disaster recovery testing, game days, and chaos engineering tools are all important components of a resilient system. Book: Engineering a Safer World by Nancy G.

Healthcare 52

Healthcare Government Airlines Systems 52

Percona

MARCH 23, 2023

Hardware Memory The amount of RAM to be provisioned for database servers can vary greatly depending on the size of the database and the specific requirements of the company. have been released since then with some major changes. Some servers may need a few GBs of RAM, while others may need hundreds of GBs or even terabytes of RAM.

Performance 124

Performance Hardware Tuning Storage 124

HammerDB

DECEMBER 5, 2020

From an engineering perspective this may be all that you need to know. A full understanding of why this is important requires some knowledge of the evolution of database hardware and software. For TPC-C this meant enough available spindles to reduce I/O latency and for TPC-H enough bandwidth for data throughput.

C++ 40

C++ Benchmarking Virtualization Open Source 40

Highly Scalable

AUGUST 20, 2013

This article is an effort to explore techniques used by developers of in-stream data processing systems, trace the connections of these techniques to massive batch processing and OLTP/OLAP databases, and discuss how one unified query engine can support in-stream, batch, and OLAP processing at the same time. Modularity and flexibility.

Big Data 154

Big Data Processing Lambda Database 154

The Morning Paper

NOVEMBER 10, 2019

You need a lot of software engineers and the willingness to rewrite a lot of software to entertain that idea. Here are the bombshell paragraphs: Our datacenter applications seek ever more CPU-efficient and lower-latency communication, which Pony Express delivers. The desire for CPU efficiency and lower latencies is easy to understand.

Network 92

Network Transportation Latency Entertainment 92

All Things Distributed

APRIL 4, 2017

This enables customers to serve content to their end users with low latency, giving them the best application experience. In 2011, AWS opened a Point of Presence (PoP) in Stockholm to enable customers to serve content to their end users with low latency. As well as AWS Regions, we also have 24 AWS Edge Network Locations in Europe.

AWS 116

AWS Airlines Latency Games 116

Alex Russell

APRIL 29, 2021

Apple forces developers of competing browsers to use their engine for all browsers on iOS , restricting their ability to deliver a better version of the web platform. They are, pound for pound, some of the best engine developers globally and genuinely want good things for the web. So is speedy resolution and agreement.

Media 145

Media Games Education Engineering 145

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. A quick check of basic performance statistics showed over 30% higher CPU consumption. in total.

Speed 126

Speed Java AWS Virtualization 126

The Morning Paper

JULY 4, 2019

This is a fascinating paper from members of Netflix’s Resilience Engineering team describing their chaos engineering initiatives: automated controlled experiments designed to verify hypotheses about how the system should behave under gray failure conditions, and to probe for and flush out any weaknesses. The Chaos automation platform.

Latency 77

Latency Engineering Metrics Traffic 77

Dotcom-Montior

NOVEMBER 24, 2021

Within an organization, the responsibility of monitoring these large distributed systems typically falls on site reliability engineering (SRE) teams. Software and hardware components are autonomous and execute tasks concurrently. This also includes latency, or the time it takes for data or a request to get through a network.

Systems 74

Systems Monitoring Hardware Network 74

All Things Distributed

MARCH 11, 2016

Marvin Theimer, Amazon Distinguished Engineer, once jokingly said that the evolution of Amazon S3 could best be described as starting off as a single engine Cessna plane, but over time the plane was upgraded to a 737, then a group of 747s, all the way to the large fleet of Airbus 380s that it is now. Primitives not frameworks.

AWS 144

AWS Hardware Retail Virtualization 144

All Things Distributed

JULY 20, 2015

To be robust and scalable, this key/value store needs to be distributed for durability and availability, to protect against network partitions or hardware failures. This architecture affords Amazon ECS high availability, low latency, and high throughput because the data store is never pessimistically locked.

Latency 166

Latency Architecture AWS Open Source 166

All Things Distributed

JULY 14, 2015

In traditional database architectures, database engines often run a small search engine or data warehouse engines on the same hardware as the database. However, in the past, you had to write code to manage the data changes and deal with keeping the search engine and data warehousing engines in sync.

Database 167

Database Lambda AWS IoT 167

Percona

JULY 1, 2023

Understanding DBaaS DBaaS cloud services allow users to use databases without configuring physical hardware and infrastructure or installing software. What we should really compare is the MySQL and Aurora database engines provided by Amazon RDS. Considering a Fully Managed DBaaS Offering For Your Business? RDS MySQL is 5.5,

AWS 52

AWS Database Serverless Storage 52

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. Engineering decisions involve making lots of trade-offs. Larger cells have better tolerance of tail latency (e.g.

Database 106

Database AWS Network Design 106