All Things Distributed

JUNE 20, 2017

The new AWS Asia Pacific (Hong Kong) Region will have three Availability Zones and be ready for customers for use in 2018. This enables customers to serve content to their end users with low latency, giving them the best application experience. Over the past decade, we have seen tremendous growth at AWS.

AWS 146

AWS Logistics Cloud Social Media 146

Brendan Gregg

AUGUST 29, 2021

1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 avg-cpu: %user %nice %system %iowait %steal %idle 14.81 avg-cpu: %user %nice %system %iowait %steal %idle 14.86 avg-cpu: %user %nice %system %iowait %steal %idle 14.95 Output every 1 seconds. 17 48011 [.]

Cache 40

Cache C++ AWS Systems 40

Smashing Magazine

OCTOBER 31, 2023

The truth is that the two tools were fairly distinct until PSI was updated in 2018 to use Lighthouse reporting. If throttling is applied at the operating system level , then the metrics match what a real user with those network conditions would experience. The accuracy of observed data depends on how the test environment is set up.

Speed 97

Speed Google Website Metrics 97

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. India became a 4G-centric market sometime in 2018. Sadly, data on latency is harder to get, even from Google's perch, so progress there is somewhat more difficult to judge.

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. This improves page load time and caching during navigations.

Performance 145

Performance Cache Media Metrics 145

KeyCDN

SEPTEMBER 12, 2019

This can be a problem in a lot of content management systems such as WordPress or Magento, because theme developers tend to scale images down in responsive themes using CSS. KeyCDN’s Cache Enabler plugin is fully compatible the HTML attributes that make images responsive. It is usually recommended that you upload images at scale.

Social Media 106

Social Media Media Google Website 106

HammerDB

NOVEMBER 5, 2018

Additionally for the log disk component it is latency for an individual write that is crucial rather than the total I/O bandwidth. To illustrate the data reads on Oracle we can flush the buffer cache. SQL> alter system flush buffer_cache; System altered. so what are your options? so what are your options?

Benchmarking 40

Benchmarking Database C++ Virtualization 40

Alex Russell

APRIL 29, 2021

After 20 years of neck-in-neck competition, often starting from common code lineages, there just isn't that much left to wring out of the system. Consistent improvement is the name of the game, and it can still have positive impacts, particularly as users lean on the system more heavily over time. Pointer Lock. Media Recorder.

Media 145

Media Games Education Engineering 145

Smashing Magazine

JANUARY 7, 2019

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. PRPL stands for Pushing critical resource, Rendering initial route, Pre-caching remaining routes and Lazy-loading remaining routes on demand. In exchange, your team gains maintainability and developer efficiency, of course.

Performance 103

Performance Cache Metrics Network 103

Percona

AUGUST 10, 2018

In fact, you should not set it to OFF in a production system unless you are 100% sure about what you are doing and its implications. sec < 2018-08-06 07:22:35.199 EDT > LOG: automatic analyze of table "vactest.scott.employee" system usage: CPU 0.00s/0.02u sec elapsed 0.15 1 second = 1000 milliseconds). You May Also Like.

Tuning 45

Tuning Cache Database Storage 45

Smashing Magazine

JANUARY 6, 2020

Globally in 2018–2019, according to the IDC, 87% of all shipped mobile phones are Android devices. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. So additionally conducting research on common devices in your target group might be a good idea.

Performance 145

Performance Cache Network Metrics 145

Alex Russell

OCTOBER 22, 2017

Tools and CI systems help them monitor progress & prevent regressions. Some systems show median RTTs near ~100ms for 3G users. It simulates a link with a 400ms RTT and 400-600Kbps of throughput (plus latency variability and simulated packet loss). Performance budgets are set early in the life of the project.

Performance 68

Performance Benchmarking Network Mobile 68

High Scalability

JULY 20, 2018

The third wing of the architecture piece is the “domain specific system-on-chip.” That means multiple data indirections mean multiple cache misses. tef : You can use a message broker to glue systems together, but never use one to cut systems apart. They are very expensive. This is where your performance goes.

Internet 121

Internet Internet Scalability Automotive 121

Abhishek Tiwari

DECEMBER 27, 2017

There are several emerging data trends that will define the future of ETL in 2018. In 2018, we anticipate that ETL will either lose relevance or the ETL process will disintegrate and be consumed by new data architectures. In contrast, Alluxio a middleware for data access - think Alluxio storage layer as fast cache.

Big Data 49

Big Data Artificial Intelligence Storage Hardware 49

The Netflix TechBlog

DECEMBER 17, 2019

In order to be supported, a database is required to fulfill a set of features that are commonly available in systems like MySQL, PostgreSQL, MariaDB, and others. We want to support these systems as a source so that they can provide their data for further consumption. Some of DBLog’s features are: Processes captured log events in-order.

Database 197

Database Traffic Transportation Open Source 197

The Netflix TechBlog

DECEMBER 17, 2019

In order to be supported, a database is required to fulfill a set of features that are commonly available in systems like MySQL, PostgreSQL, MariaDB, and others. We want to support these systems as a source so that they can provide their data for further consumption. Some of DBLog’s features are: Processes captured log events in-order.

Database 212

Database Traffic Transportation Open Source 212

Smashing Magazine

SEPTEMBER 6, 2021

This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. Finally, not inlining resources has an added latency cost because the file needs to be requested.

Network 104

Network Servers Cache Traffic 104