All Things Distributed

JUNE 21, 2017

Today, I'm excited to announce the general availability of Amazon DynamoDB Accelerator (DAX) , a fully managed, highly available, in-memory cache that can speed up DynamoDB response times from milliseconds to microseconds, even at millions of requests per second. We welcome that DAX is generally available."

Speed 117

Speed Cache Latency AWS 117

Percona

MARCH 23, 2023

These guidelines work well for a wide range of applications, though the optimal settings, of course, depend on the workload. As datasets continue to grow in size, the amount of RAM required to store and process these datasets also increases. But also larger log files mean that the recovery process will be slower in case of a crash.

Performance 124

Performance Hardware Tuning Storage 124

High Scalability

JULY 20, 2018

jaybo_nomad : The Allen Institute for Brain Science is in the process of imaging 1 cubic mm of mouse visual cortex using TEM at a resolution of 4nm per pixel. Cliff Click : The JVM is very good at eliminating the cost of code abstraction, but not the cost of data abstraction. That means multiple data indirections mean multiple cache misses.

Internet 121

Internet Internet Scalability Automotive 121

The Morning Paper

NOVEMBER 10, 2019

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. ” That’s 4-8x the speed of evolution and feedback cycles. Emphasis mine).

Network 92

Network Transportation Latency Entertainment 92

CSS - Tricks

APRIL 1, 2021

Speed is also something Google considers when ranking your website placement on mobile. With all of this in mind, I thought improving the speed of my own version of a slow site would be a fun exercise. I’m going to update my referenced URL to the new site to help decrease latency that adds drag to the initial page load.

Cache 92

Cache Social Media Media Network 92

Alex Russell

FEBRUARY 3, 2023

Partisans for slow, complex frameworks have successfully marketed lemons as the hot new thing, despite the pervasive failures in their wake, and crowding out higher-quality options in the process. [1] Sandy Foundations # It was, of course, b t. Astonishingly, gobsmackingly effective b t, but nonsense nonetheless.

Social Media 119

Social Media Website Technology Technology 119

The Morning Paper

FEBRUARY 6, 2020

Oh, and there’s a scheduler too of course to keep all the plates spinning. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access. Cross-function communication should work at wire speed. A closing thought.

Lambda 98

Lambda Serverless Cache Latency 98

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+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Smashing Magazine

AUGUST 22, 2021

A Primer on Speed. Discussing performance and “speed” can quickly get complex, because many underlying aspects contribute to a web-page loading “slowly”. Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Congestion Control.

Performance 107

Performance Network Latency Servers 107

Alex Russell

JANUARY 30, 2024

HTML, CSS, images, and fonts can all be parsed and run at near wire speeds on low-end hardware, but JavaScript is at least three times more expensive, byte-for-byte. Meanwhile, budget segment devices have finally started to see improvement ( as this series predicted ), thanks to hand-me-down architecture and process node improvements.

Performance 90

Performance Network Mobile Speed 90

Dotcom-Montior

MAY 12, 2020

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. A request will be sent from the client-side and an HTTP check waits on the server port to get the message, process it, and then send back the response. Network latency.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

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. This work is latency critical, because volume IO is blocked until it is complete. NSDI’20.

Database 106

Database AWS Network Design 106

Alex Russell

MARCH 6, 2021

Advances in browser content processing. Not as much as we'd like, of course, but the worldwide baseline has changed enormously. There are differences, of course, but not where it counts. Recall that single-core performance most directly translates into speed on the web. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

The Morning Paper

JANUARY 23, 2020

1:18pm a key observation was made that an API call to populate the homepage sidebar saw a huge jump in latency. A technique called process tracing was employed to try and recover "a record of participant data acquisition, situation assessment, knowledge activation, expectations, intentions, and actions as the case unfolds over time."

Internet 53

Internet Internet Cache Engineering 53

Smashing Magazine

AUGUST 20, 2021

Platforms such as Snipcart , CommerceLayer , headless Shopify , and Stripe enable you to manage products in a friendly UI while taking advantage of the benefits of Jamstack: Amazon’s famous study reported that for every 100ms in latency, they lose 1% of sales. Of course the template approach is cheaper. Large scale blogs.

Ecommerce 140

Ecommerce Website Government Internet 140

All Things Distributed

OCTOBER 2, 2017

" Of course, no technology change happens in isolation, and at the same time NoSQL was evolving, so was cloud computing. Performant – DynamoDB consistently delivers single-digit millisecond latencies even as your traffic volume increases.

Internet 125

Internet Internet AWS Performance 125

The Morning Paper

JANUARY 12, 2020

Constrained MDPs (Markov Decision Processes) allow constraints to be specified over states and actions. To deal with this we can use Partially Observable Markov Decision Processes (POMDPs). Another great insight here (which reminds me of discussions of system latency) is that ‘average’ performance (i.e.,

Programming 43

Programming Systems Efficiency Network 43

Alex Russell

OCTOBER 22, 2017

Answering it requires an understanding of how browsers process resources (which differs by type) and the concept of the critical path. This input processing happens on document’s main thread , where JavaScript runs. Processing input (including scrolling w/ active touch listeners). ” A good question!

Performance 68

Performance Benchmarking Network Mobile 68

Alex Russell

JUNE 20, 2020

After all, those are properties that browsers compete on, benefiting users in the process. Rendering text is important (think login screens), but there's no product without low-latency, adaptive codecs, networking, and camera/microphone access. The a secondary benefit to adjacency is that it provides time to learn and course-correct.

Games 55

Games Hardware Java Media 55

Smashing Magazine

SEPTEMBER 6, 2021

Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Finally, not inlining resources has an added latency cost because the file needs to be requested. All of this is, of course, still true for HTTP/3 as well.

Network 107

Network Servers Cache Traffic 107

Brendan Gregg

SEPTEMBER 5, 2017

There's also a ZFS send/recv code path that should try to use the TASK_INTERRUPTIBLE flag (as suggested by a coworker), to avoid a kernel hang (can't kill -9 the process). 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.

Virtualization 76

Virtualization AWS Engineering Hardware 76

KeyCDN

FEBRUARY 14, 2019

Let’s cover some ways to speed up GIF animations on your website and look at some alternative formats that you should consider. Why Speed Up GIF Animations? Fortunately, there are plenty of free editing tools that streamline the process. You should also think about supporting newer formats like WebP.

Speed 50

Speed Website Latency Cache 50

Smashing Magazine

JANUARY 11, 2021

Micro-optimizations are great for keeping performance on track, but it’s critical to have clearly defined targets in mind — measurable goals that would influence any decisions made throughout the process. Note : If you use Page Speed Insights or Page Speed Insights API (no, it isn’t deprecated!), Large preview ).

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Establish a performance culture. Treo Sites provides competitive analysis based on real-world data. Large preview ).

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

SEPTEMBER 29, 2021

Assuming encode/decode speeds meet your needs. Encode/Decode Speed. Complex compression algorithms may require higher processing power to encode/decode images. A complex decoding process can slow down the rendering of images. However, the AVIF team is working on improving encoding speeds. Large preview ).

Open Source 145

Open Source Speed Website Google 145

Smashing Magazine

JANUARY 7, 2019

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Also, as Patrick Meenan suggested, it’s worth to plan out a loading sequence and trade-offs during the design process.

Performance 104

Performance Cache Metrics Network 104