All Things Distributed

JUNE 21, 2018

In response to these needs, developers now have the choice of relational, key-value, document, graph, in-memory, and search databases. Use cases such as gaming, ad tech, and IoT lend themselves particularly well to the key-value data model where the access patterns require low-latency Gets/Puts for known key values.

Database 166

Database AWS Games Latency 166

The Netflix TechBlog

AUGUST 30, 2021

When a new hardware device is connected, the Local Registry detects and collects a set of information about it, such as networking information and ESN. Fault Tolerance If the underlying KafkaConsumer crashes due to ephemeral system or network events, it should be automatically restarted. million elements.

Latency 222

Latency Traffic Transportation Cloud 222

Dynatrace

DECEMBER 22, 2019

AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. Amazon ElastiCache (see AWS documentation for Memcached and Redis ). The example below visualizes average latency by API name and stage for a specific AWS API Gateway. Dynatrace news.

AWS 200

AWS Metrics IoT Storage 200

All Things Distributed

JULY 20, 2015

The pool of resources, at this time, is the CPU, memory, and networking resources of Amazon EC2 instances as partitioned by containers. networks ports, memory, CPU, etc). 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.

Latency 156

Latency Architecture AWS Open Source 156

Dynatrace

DECEMBER 22, 2019

AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. Amazon ElastiCache (see AWS documentation for Memcached and Redis ). The example below visualizes average latency by API name and stage for a specific AWS API Gateway. Dynatrace news.

AWS 182

AWS Metrics IoT Storage 182

Alex Russell

FEBRUARY 28, 2022

The chief effect of the architectural difference is to shift the distribution of latency within the loop. Successive HTML documents tend to be highly repetitive , after all, with headers, footers, and shared elements continually re-created from source when navigating between pages. Today's web architecture debates (e.g.

Performance 113

Performance Latency Architecture Network 113

Dynatrace

JULY 10, 2019

With insights from Dynatrace into network latency and utilization of your cloud resources, you can design your scaling mechanisms and save on costly CPU hours. For examples of writing Custom devices, take a look at our document or take inspiration from our GitHub repository. Extending Dynatrace is easy!

Java 197

Java Best Practices Metrics Azure 197

Dynatrace

AUGUST 5, 2019

While most of our cloud & platform partners have their own dependency analysis tooling, most of them focus on basic dependency detection based on network connection analysis between hosts. What is the network traffic going to be between services we migrate and those that have to stay in the current data center? VMWare host groups.

Cloud 38

Cloud Traffic Database Network 38

Dynatrace

MAY 27, 2021

It keeps application processing closer to the data to maintain higher bandwidth and lower latencies, adheres to compliance regulations that don’t yet approve cloud managed services, and allows data center capital investments to be fully amortized before moving to the cloud. More details can be found in the Dynatrace documentation.

AWS 162

AWS IoT Virtualization Cloud 162

Scalegrid

JANUARY 19, 2024

Key Takeaways Rollbacks in MongoDB are triggered by disruptions in the replication process due to primary node crashes, network partitions, or other failures, which can lead to substantial data loss and inconsistencies. This failure in replication could happen due to crashes, network partitions, or other situations where failover occurs.

Database 130

Database Network Servers Monitoring 130

Alex Russell

DECEMBER 18, 2022

TL;DR : To serve users at the 75 th percentile ( P75 ) of devices and networks, we can now afford ~150KiB of HTML/CSS/fonts and ~300-350KiB of JavaScript (gzipped). This is a slight improvement on last year's budgets , thanks to device and network improvements. Networks #. This is an ethical crisis for the frontend.

Performance 120

Performance Mobile Network Latency 120

Smashing Magazine

MAY 16, 2022

This allows resource requests, including the HTML document itself, to be enriched with data during its lifecycle, and that information can be inspected for measuring the attributes of that resource! This header can be set on the response of any network resource, such as XHR, fetch, images, HTML, stylesheets, etc. Setting Server-Timing.

Servers 111

Servers Monitoring Cache Network 111

Scalegrid

JUNE 18, 2019

In this blog, we’ll show you how to connect to a MongoDB server configured with self-signed certificates for SSL using both the Ruby MongoDB driver and the popular Object-Document-Mapper (ODM) mongoid. The connection options available for the driver are documented here , and the options we will need are: :ssl. ssl_verify.

C++ 100

C++ Servers Database Testing 100

Smashing Magazine

AUGUST 3, 2021

Lots can go wrong: a network request fails, a third-party library breaks, a JavaScript feature is unsupported (assuming JavaScript is even available), a CDN goes down, a user behaves unexpectedly (they double-click a submit button), the list goes on. The more enriched sentence (right) is an enhancement for when the network request succeeds.

Network 145

Network Engineering Availability Code 145

The Morning Paper

MARCH 3, 2020

This work is latency critical, because volume IO is blocked until it is complete. Physalia is designed to offer consistency and high-availability, even under network partitions. Larger cells have better tolerance of tail latency (e.g. Thus the configuration master is under stress just when you need it the most.

Database 106

Database AWS Network Design 106

Adrian Cockcroft

JANUARY 29, 2023

The mean and percentile measurements hide this structure, but the rest of this post will show how the structure can be measured and analyzed so that you can figure out a useful model of your system, understand what is driving the long tail of latencies and come up with better SLAs and measures of capacity.

Lambda 98

Lambda Latency Cache C++ 98

Percona

MAY 2, 2023

concurrent threads running, duration of queries, etc) As we can see, the decision is not only based on a formula or documentation. Also, there is a documented bug: OPTIMIZE TABLE does not sort R-tree indexes, such as spatial indexes on POINT columns. So the actual answer is highly dependent on the workload (i.e.

Social Media 145

Social Media Database Servers Cache 145

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 127

Performance Network Mobile Metrics 127

Smashing Magazine

APRIL 17, 2019

All these resource hints use the rel attribute of the <link> element that you’ll be familiar with finding in the <head> of your HTML documents. This typically happens once per server and takes up valuable time — especially if the server is very distant from the browser and network latency is high.

Performance 109

Performance Servers Games Cache 109

Alex Russell

OCTOBER 22, 2017

We constrain ourselves to a real-world baseline device + network configuration to measure progress. Budgets are scaled to a benchmark network & device. This isn’t true (more on that in a follow-up post), and sites which are built this way implicitly require more script in each document (e.g., for router components).

Performance 74

Performance Network Benchmarking Mobile 74

The Morning Paper

FEBRUARY 23, 2020

There are five different types of member in an AnyLog system, and any network node can join without restriction as any type of member. Publishers are the producers of the actual data to be served by the network. Given their position of power in the network, such caching seems to be highly incentivised in the absence of such mechanisms.

Blockchain 94

Blockchain Internet Internet IoT 94

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Engagement: Poor performance has a well-documented relationship to reduced engagement.

Performance 99

Performance Latency Metrics Engineering 99

Smashing Magazine

SEPTEMBER 28, 2022

The resource loading waterfall is a cascade of files downloaded from the network server to the client to load your website from start to finish. It essentially describes the lifetime of each file you download to load your page from the network. You can see this by opening your browser and looking in the Networking tab.

Cache 141

Cache Performance Servers Architecture 141

CSS - Tricks

APRIL 1, 2021

Redirects are often pretty light in terms of the latency that they add to a website, but they are an easy first thing to check, and they can generally be removed with little effort. Using a network request inspector, I’m going to see if there’s anything we can remove via the Network panel in DevTools.

Cache 94

Cache Social Media Media Website 94

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Servers and Networks. Network Configuration.

Network 120

Network Servers Cache Traffic 120

Smashing Magazine

AUGUST 3, 2023

You need to beware that slow server response times can significantly increase TTFB, often due to server overload, network issues, or un-optimized logic on the server side. You need to beware of large HTML files or slow network connections because they can lead to longer download times.

Performance 78

Performance Cache Traffic Metrics 78

Brendan Gregg

SEPTEMBER 5, 2017

Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency. There's a lot about Linux containers that isn't well documented yet, especially since it's a moving target. Hit Ctrl-C to end. ^C

Virtualization 75

Virtualization AWS Engineering Hardware 75

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. What will 5G mean in practice? I don’t, do you?

Wireless 55

Wireless Serverless IoT Artificial Intelligence 55

O'Reilly

JULY 20, 2021

Few things within a home are restricted–possibly a safe with important documents. The concept of Zero Trust Networks speaks to this problem. So far, technology has been great at intermediating people for coordination through systems like text messaging, social networks, and collaborative documents.

Google 132

Google Games Technology Technology 132

Smashing Magazine

AUGUST 15, 2023

Large preview ) While browsers are generally pretty fast, these steps still take time to load, typically in seconds, and even longer on slower, high-latency network connections. This takes the image out of the normal document flow , which is a fancy way of saying that the elements surrounding it act as if it’s not there.

Media 77

Media Metrics Mobile Best Practices 77

Abhishek Tiwari

NOVEMBER 3, 2018

Case-in-point, most enterprise CMS vendors lack robust full-site content delivery network (CDN) integration. A few months back, I was pulled into a scenario where a business has been working with a leading CMS vendor to roll-out a network of multi-regional websites.

Systems 63

Systems Cache Website Network 63

Alex Russell

JULY 14, 2021

Because they lean on the system-provided WebView component, they do not need to pay the expense of a heavier app download to support rendering HTML, running JavaScript, decoding images, or loading network resources. To quote the Android documentation , a WebView is.: But neither has to be. What is a WebView?

Google 134

Google Mobile Engineering Internet 134

HammerDB

OCTOBER 23, 2023

With a simple example such as this, it would not necessarily be expected for the additional network traffic to be significant between the 2 approaches. However, with more complex application logic this network round trip soon becomes a key focus area for improving performance. On MySQL, we saw a 1.5X performance advantage.

Benchmarking 63

Benchmarking Database Network C++ 63

Testsigma

AUGUST 24, 2020

Teams often resort to using in-house test automation tools or frameworks which are neither well-documented nor well-maintained. Maintaining test data in a central repository and then accessing it from different test environments may ease this problem but may introduce other issues like network latency in tests.

Testing 69

Testing Open Source Scalability Infrastructure 69

Adrian Cockcroft

SEPTEMBER 23, 2024

The benchmarks are documented in the Blackwell Architecture Technical Brief and some screenshots of the GTC keynote, and Ill break those out and try to explain whats really going on from a benchmarketing approach. The configuration is documented in the following figure. Various benchmarks show improvements of 1.4x we would expect.

Benchmarking 52

Benchmarking Energy Architecture Latency 52

Dotcom-Montior

DECEMBER 8, 2021

An organization’s response to an incident, whether we are talking about downtime, security breaches or cyber-attacks, or even prolonged latency and repeated errors, is critical to the continued success of the business and trust from the customer or end user. Incident Management Lifecyle: Process and Steps.

Social Media 90

Social Media Monitoring Latency DevOps 90

Abhishek Tiwari

JULY 12, 2018

Here are 8 fallacies of data pipeline The pipeline is reliable Topology is stateless Pipeline is infinitely scalable Processing latency is minimum Everything is observable There is no domino effect Pipeline is cost­-effective Data is homogeneous The pipeline is reliable The inconvenient truth is that pipeline is not reliable.

Latency 63

Latency Analytics Scalability Engineering 63