Alex Russell

MARCH 6, 2021

Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones. Poor performance has a compound effect on user expectations at an ecosystem level. Live by the link, die by the link.

Performance 124

Performance Network Cache Metrics 124

Brendan Gregg

APRIL 14, 2022

On the Netflix Java/Linux/EC2 stack there were no working mixed-mode flame graphs, no production safe dynamic tracer, and no PMCs: All tools I used extensively for advanced performance analysis. Apart from developing tools, much of my time has been spent helping teams with performance issues and evaluations. How would I do my job?

Java 145

Java Cloud Cache AWS 145

The Morning Paper

FEBRUARY 6, 2020

Last week we looked at a function shipping solution to the problem; Cloudburst uses the more common data shipping to bring data to caches next to function runtimes (though you could also make a case that the scheduling algorithm placing function execution in locations where the data is cached a flavour of function-shipping too).

Lambda 98

Lambda Serverless Cache Latency 98

Percona

JANUARY 9, 2023

Looking at how people are using COUNT(*) and COUNT(col), it looks like most of them think they are synonyms and just use what they happen to like, while there is a substantial difference in performance and even query results. But why we can’t just cache the actual number of the rows? Extra: Using where 1 row in set, 1 warning (0.00

Cache 76

Cache Engineering Storage Speed 76

Smashing Magazine

JANUARY 6, 2020

Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 104

Performance Cache Metrics Network 104

n0derunner

SEPTEMBER 17, 2018

As with traditional storage, applications are writing to a shared storage environment which is necessary to support VM movement. It is the shared storage that often causes performance issues for data bases which are otherwise separated across nodes. The idea here is to simulate the two main storage workloads of a DB.

Performance Testing 40

Performance Testing Benchmarking Testing Performance 40

Percona

JULY 17, 2023

DBAs and developers appreciate its combination of flexibility, scalability, and performance. Customers miss out on the cost-effectiveness, creative freedom, and global community support (for innovation, better performance, and enhanced security) that come with open source solutions and from companies with an open source spirit.

Open Source 75

Open Source Database Scalability Software 75

SQL Performance

OCTOBER 7, 2020

Its raison d’être is to cache result rows from a plan subtree, then replay those rows on subsequent iterations if any correlated loop parameters are unchanged. For more background on these performance spools see my prior article. Spools are the least costly way to cache partial results. Sort Rewinds. c3 DESC. )

Servers 106

Servers Cache Azure Performance 106

Brendan Gregg

APRIL 14, 2022

On the Netflix Java/Linux/EC2 stack there were no working mixed-mode flame graphs, no production safe dynamic tracer, and no PMCs: All tools I used extensively for advanced performance analysis. Apart from developing tools, much of my time has been spent helping teams with performance issues and evaluations. How would I do my job?

Java 52

Java Cache Cloud AWS 52

The Morning Paper

JUNE 23, 2019

Coupled with stateless application servers to execute business logic and a database-like system to provide persistent storage, they form a core component of popular data center service archictectures. I say go ahead and use local state as a performance boost, so long as you’re fine to have that state wiped out at any moment.

Cache 79

Cache Latency Google Lambda 79

Percona

MAY 15, 2023

This operation is quite expensive but our database can run it in a few milliseconds or less, thanks to several optimizations that allow the node to execute most of them in memory with no or little access to mass storage. In the MySQL open source ecosystem, we have only two consolidated ways to perform sharding — Vitess and ProxySQL.

Traffic 123

Traffic Scalability Database Servers 123

Smashing Magazine

JANUARY 15, 2019

How Improving Website Performance Can Help Save The Planet. How Improving Website Performance Can Help Save The Planet. Perhaps the biggest win when it comes to making websites more sustainable is that performance, user experience and sustainability are all neatly intertwined. Jack Lenox. 2019-01-15T13:30:32+01:00.

Website Performance 73

Website Performance Website Energy Performance 73

The Morning Paper

DECEMBER 8, 2019

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. The beauty of persistent memory is that we can use memory layouts for persistent data (with some considerations for volatile caches etc. Traditional pointers address a memory location (often virtual of course).

Hardware 56

Hardware Programming Media Storage 56

SQL Performance

APRIL 8, 2019

Back on December 5, 2017, Microsoft announced that they were using AMD EPYC 7551 processors in their storage-optimized Lv2-Series virtual machines. The L3 cache size is 64MB. The AMD EPYC 7551 processor has slightly lower single-threaded CPU performance when compared to the older 2.3 The L3 cache size is 64MB.

Azure 42

Azure Virtualization Storage Benchmarking 42

The Morning Paper

JUNE 16, 2019

The challenging thing of course, is efficiently maintaining all of these parallel universes. For good query performance we’d like to pre-compute these per-user universes. If we do that naively though, we’re going to end up with a lot of universes to store and maintain and the storage requirements alone will be prohibitive.

Database 90

Database Cache Benchmarking Efficiency 90

Randon ASCII

SEPTEMBER 8, 2019

The fact that this shows up as CPU time suggests that the reads were all hitting in the system cache and the CPU time was the kernel overhead (note ntoskrnl.exe on the first sampled call stack) of grabbing data from the cache. Now that we suspect file I/O it’s necessary to go to Graph Explorer-> Storage-> File I/O.

Latency 79

Latency Cache Programming Operating System 79

The Morning Paper

FEBRUARY 20, 2020

The motivation is not that inference will perform better inside the database, but that the database is the best place to take advantage of enterprise features (transactions, security, auditing, HA, and so on). There are limitations to this model of course. It can’t handle loops for example (an analysis of 4.6M

Processing 72

Processing Hardware Database Azure 72

The Morning Paper

FEBRUARY 23, 2020

Our approach differs substantially by (1) providing economic incentives for data to be contributed and integrated into existing schemas, (2) offering a SQL interface instead of graph based approaches, (3) including the computational and storage infrastructure in the architectural vision.

Blockchain 94

Blockchain Internet Internet IoT 94

Percona

JUNE 4, 2023

MariaDB retains compatibility with MySQL, offers support for different programming languages, including Python, PHP, Java, and Perl, and works with all major open source storage engines such as MyRocks, Aria, and InnoDB. Elevate your MariaDB environment with Percona Support for MariaDB. Contact us to learn more!

Open Source 52

Open Source Servers Storage Scalability 52

Alex Russell

OCTOBER 22, 2017

TL;DR: performance budgets are an essential but under-appreciated part of product success and team health. Nobody is trying to do a poor job, and yet the results of a “completed” PWA project often require weeks or months of painstaking rework to deliver minimally acceptable performance. Partner meetings are illuminating.

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

SEPTEMBER 20, 2021

And of course, scrapers could scrape your site to look for security vulnerabilities or exposed contact or sales lead details. Even if none of the page content is delivered from your platform or servers, so long as the JavaScript code you are using for analytics or performance tracking loads, you can still get data about the page view.

Website 89

Website Analytics Cache Google 89

Speed Curve

FEBRUARY 25, 2024

My favourite place to start is with the Web Vitals heatmap on SpeedCurve's RUM > Performance dashboard. The Performance panel can be overwhelming – even for experienced engineers – as it exposes how much work the browser is doing to load pages or handle interactions. Switching to the DevTools Performance panel 3.

Analytics 91

Analytics Processing Google Mobile 91

Smashing Magazine

OCTOBER 29, 2019

Even if you resize your images to the exact specifications of your website and run them through a compressor, they can still put a strain on performance and run up bandwidth usage. Here’s what Google suggests: PageSpeed Insights demonstrates how much storage and bandwidth websites stand to save with WebP. What Is WebP Caching?

Website 72

Website Speed Cache Google 72

SQL Performance

OCTOBER 20, 2022

Rows qualifying for the update must continue to qualify until the change is performed and committed. Using lock classes is better for resource usage, concurrency, and performance than internally escalating to repeatable read would be. This is true, of course, but there’s a bit more to say. Reading data.

Testing 91

Testing Servers Cache Engineering 91

IO River

NOVEMBER 2, 2023

It’s not just limited to cloud resources like AWS and Azure; Terraform is versatile, extending its capabilities to key performance areas like Content Delivery Network (CDN) management, ensuring efficient content delivery and optimal user experience.‍Started  ‍Of course, the latter. Migrating isn't as simple as 'copy-paste'.‍Even

Open Source 52

Open Source DevOps AWS Azure 52

Smashing Magazine

OCTOBER 22, 2019

Plus, now that Google has made mobile-first indexing the default, you really can’t afford to let any performance optimizations fall by the wayside what with how difficult it can be to get your mobile site as speedy as your desktop. Of course, there are the SEO benefits of images, too. Images are a powerful force on the web.

Mobile 63

Mobile Media Website Storage 63

Alex Russell

APRIL 29, 2021

Classics of the genre include: Apple's just focused on performance! The Performance Argument. As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. Steve & Tim's Close-up Magic.

Media 145

Media Games Education Engineering 145

Percona

JUNE 22, 2023

With MongoDB, you can set read-only privileges in which users can query data but cannot perform write operations. This helps prevent the possibility of a single point of failure, which could cause downtime or slow performance. Consider costs : Multiple factors will, of course, affect how much you should budget.

Availability 107

Availability Database Open Source Hardware 107

IO River

NOVEMBER 2, 2023

Whether you're scaling storage solutions like S3 buckets, compute resources like EKS clusters, or content delivery mechanisms via CDNs, Terraform offers a streamlined approach. Of course, the latter. It enables DevOps teams to manage, configure, and automate infrastructure in a streamlined fashion.

Open Source 40

Open Source DevOps AWS Azure 40

Highly Scalable

SEPTEMBER 18, 2012

Historically, NoSQL paid a lot of attention to tradeoffs between consistency, fault-tolerance and performance to serve geographically distributed systems, low-latency or highly available applications. This schema provides good performance because individual updates are replaced by asynchronous batch processing.

Database 213

Database Latency C++ Scalability 213

ACM Sigarch

NOVEMBER 4, 2019

In particular, she highlighted her transformative MIT’78 VLSI System Design Course she designed and taught as a Visiting Professor of EECS at MIT. The best paper runner-up was “ Dynamic Multi-Resolution Data Storage ”. . Goodman, and “Speculative Cache Ways: On-Demand Cache Resource Allocation” published at MICRO 1999 by David H.

Hardware 18

Hardware Architecture Programming Innovation 18

High Scalability

JULY 20, 2018

That means multiple data indirections mean multiple cache misses. That means multiple data indirections mean multiple cache misses. This is where your performance goes. Mark LaPedus : MRAM, a next-generation memory type, is being touted as a replacement for embedded flash and cache applications. They are very expensive.

Internet 121

Internet Internet Scalability Automotive 121

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. DynamoDB was the first service at AWS to use SSD storage.

Speed 121

Speed Cache Latency AWS 121

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. " Of course, no technology change happens in isolation, and at the same time NoSQL was evolving, so was cloud computing.

Internet 128

Internet Internet AWS Performance 128

All Things Distributed

APRIL 27, 2011

We use high-performance transactions systems, complex rendering and object caching, workflow and queuing systems, business intelligence and data analytics, machine learning and pattern recognition, neural networks and probabilistic decision making, and a wide variety of other techniques. Driving Storage Costs Down for AWS Customers.

Technology 151

Technology Technology AWS Storage 151