The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. CFS is widely used and therefore well tested and Linux machines around the world run with reasonable performance.

Cache 251

Cache Latency Airlines Logistics 251

Percona

FEBRUARY 15, 2023

When you want to know if a key is present or not in the list, you run it through the hash function and check if the corresponding bits in the bitmap are “1” or “0” If one of the bits is “0”, you know for sure the key is not in the list. If all the bits are “1”, the value may be present.

Storage 127

Storage Tuning Cache Engineering 127

Scalegrid

JANUARY 5, 2024

Despite initial investment costs, DBMS presents long-term savings and improved efficiency through automated processes, efficient query optimizations, and scalability, contributing to enhanced decision-making and end-user productivity.

Efficiency 147

Efficiency Storage Database Scalability 147

Speed Curve

FEBRUARY 5, 2024

That performance golden rule still holds true today. Charlie Vazac introduced server timing in a Performance Calendar post circa 2018. Caching the base page/HTML is common, and it should have a positive impact on backend times. In the case of a cache miss, this should be zero.) (In the case of a cache miss, this should be zero.)

Servers 57

Servers Cache Retail Benchmarking 57

Brendan Gregg

AUGUST 29, 2021

A service team was debugging a performance issue and noticed it coincided with a high rate of paging. I was asked to help, and used a variety of performance tools to solve this including those that use eBPF and Ftrace. Reads usually have apps waiting on them; writes may not (write-back caching). Counting cache functions.

Cache 105

Cache C++ AWS Latency 105

CSS Wizardry

AUGUST 7, 2019

Strap yourself in; here is a non-exhaustive list presented in no particular order: Latency: As above, we’re counting a trip out to and a return trip from the server. only to find that the resource they’re requesting isn’t in that PoP ’s cache. Rather, your TTFB represents any number of the items present above.

Latency 269

Latency Ecommerce Servers Mobile 269

Smashing Magazine

NOVEMBER 8, 2021

We work with millions of merchants, and as many companies, we obsess about storefront performance. We obsess even more about finding the optimal balance between performance, capabilities, and merchants’ business objectives. Surveying the existing landscape of available developer tools and runtimes, we felt that there is a gap.

Cache 136

Cache Best Practices Strategy Servers 136

Percona

MAY 2, 2023

ChatGPT: The InnoDB buffer pool is used by MySQL to cache frequently accessed data in memory. Since your dataset is 100 GB and you have 500 GB of RAM, you can allocate a significant portion of the available memory to the InnoDB buffer pool. 16) and monitoring the server’s performance.

Social Media 120

Social Media Database Servers Cache 120

Percona

NOVEMBER 7, 2023

The book PostgreSQL 14 Internals has been available in PDF format for quite a while, but recently, the ability to order a printed copy became available ( [link] ). This 548-page tome from PostgresPro covers the spectrum from data organization to details on the many available indexing options. Version 14?

Cache 87

Cache Servers Operating System Database 87

The Morning Paper

MARCH 8, 2020

This paper presents Snowflake design and implementation along with a discussion on how recent changes in cloud infrastructure (emerging hardware, fine-grained billing, etc.) The caching use case may be the most familiar, but in fact it’s not the primary purpose of the ephemeral storage service. of the persistent data on average.

Storage 112

Storage Engineering Cache Serverless 112

ACM Sigarch

MAY 31, 2023

Heterogeneous and Composable Memory (HCM) offers a feasible solution for terabyte- or petabyte-scale systems, addressing the performance and efficiency demands of emerging big-data applications. However, building and utilizing HCM presents challenges, including interconnecting various memory technologies (e.g.,

Latency 52

Latency Hardware Cache Architecture 52

MachMetrics

DECEMBER 27, 2019

It is one of the most complete “state of the web” reports currently available. Offering 20 chapters with insights into Page Content, User Experience, Content Publishing, and Content Distribution, it can also be overwhelming, so we’ll be summarizing the web performance section in an easy-to-understand manner.

Performance 52

Performance Speed Website Mobile 52

KeyCDN

DECEMBER 8, 2022

Unoptimized content could also be one of the reasons why your WordPress website is not performing as per your expectations. While this was the case in the past, this won't be an accurate statement for the present WordPress. Several website speed testing tools available could be used for this purpose. Why is WordPress slow?

Cache 52

Cache Website Speed Website Performance 52

Percona

SEPTEMBER 28, 2023

Whenever you install your favorite MySQL server on a freshly created Ubuntu instance, you start by updating the configuration for MySQL, such as configuring buffer pool, changing the default datadir director, and disabling one of the most outstanding features – query cache. This file is present in /proc/$pid/oom_score_adj.

Servers 112

Servers Best Practices Database Open Source 112

The Netflix TechBlog

NOVEMBER 3, 2022

In the time since it was first presented as an advanced Mesos framework, Titus has transparently evolved from being built on top of Mesos to Kubernetes, handling an ever-increasing volume of containers. This blog post presents how our current iteration of Titus deals with high API call volumes by scaling out horizontally.

Cache 224

Cache Latency Traffic Systems 224

The Netflix TechBlog

MARCH 5, 2019

the order of the rows on your Netflix home page, issuing content licenses when you click play, finding the Open Connect cache closest to you with the content you requested, and many more). In the last section, we will attempt to feed your curiosity by presenting a set of opportunities that will drive our next wave of impact for Netflix.

Infrastructure 182

Infrastructure Cloud Scalability AWS 182

Alex Russell

MARCH 31, 2022

Browsers will cache tools popular among vocal, leading-edge developers. There's plenty of space for caching most popular frameworks. The best available proxy data also suggests that shared caches would have a minimal positive effect on performance. Suppose a user has only downloaded part of the cache.

Cache 82

Cache Government Traffic Network 82

SQL Server According to Bob

NOVEMBER 8, 2016

Note: We received feedback that there was some confusion on us calling this functionality “tail of the log caching” because our documentation and prior history has referred to the tail of the log as the portion of the hardened log that has not been backed up. Tail Of Log Caching.

Cache 40

Cache Servers Media Storage 40

Brendan Gregg

JULY 2, 2021

Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization. cachestat File system cache statistics line charts. cachestat File system cache statistics line charts. I chose these to find the most performance wins with the fewest tools.

Latency 145

Latency Cache Energy Systems 145

SQL Performance

MAY 16, 2019

Achieving minimal logging using INSERT.SELECT into an empty clustered index target is not quite as simple as described in the Data Performance Loading Guide. The Data Loading Performance Guide contains a high-level summary of the conditions required for minimal logging into clustered tables: This post is concerned with the top row only.

Cache 67

Cache Servers Testing Storage 67

SQL Performance

OCTOBER 20, 2022

Rows qualifying for the update must continue to qualify until the change is performed and committed. When a blocking operator is present (for Halloween protection or any other reason), this scheme breaks down because more than one row can be read before any changes are made. Reading data. Lock classes may be needed when reading data.

Testing 91

Testing Servers Cache Engineering 91

Testsigma

JUNE 3, 2021

These software errors are usually uncovered during functionality testing, mostly can be present as: Difficult/ confusing functionality: If the user is unable to understand or perform a function on the application, then it should change. The UI is meant to be intuitive and easy for the user. of the dialog boxes. Wrong redirection.

Software 82

Software Software Testing Hardware 82

Brendan Gregg

AUGUST 29, 2021

A service team was debugging a performance issue and noticed it coincided with a high rate of paging. I was asked to help, and used a variety of Linux performance tools to solve this including those that use eBPF and Ftrace. Reads usually have apps waiting on them; writes may not (write-back caching). This is "cache busting."

Cache 40

Cache C++ AWS Systems 40

Tech News Gather

JULY 18, 2023

With quality healthcare app development , patients as well as healthcare service providers have the chance to avail a more streamlined and faster service on-demand. While many technologies and tools are available for healthcare application development, Laravel is the frontrunner according to tech experts.

Healthcare 52

Healthcare Social Media Development Artificial Intelligence 52

Smashing Magazine

SEPTEMBER 20, 2021

Attempted modifications in JavaScript might break page functionality, inhibit proper rendering, or present other problems. 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

Percona

JUNE 4, 2023

Critical features of MariaDB include robust security features like encryption at rest and in transit, user authentication, and role-based access control (RBAC), as well as high-performance query execution, advanced indexing techniques, and replication, clustering, and sharding, ensuring scalability and high availability.

Open Source 52

Open Source Servers Storage Scalability 52

Tim Kadlec

APRIL 12, 2020

A couple of months ago, I was helping one company boost its performance online. The cache hit was very low (a topic for another day), and whenever the server had to provide a fresh version of the page, it was taking an unacceptably long time more often than not. (The Here’s an example.

Tuning 69

Tuning Cache Network Servers 69

Dynatrace

SEPTEMBER 17, 2019

Instead of presenting you with a handful of random screenshots from our demo environment I reached out to Robert, a close friend of mine, who leads a development team with the current task to re-architect and re-platform their multi-tenant SaaS-based eCommerce platform. REDIS for caching. NGINX as an API Gateway. 3 Log Analytics.

AWS 127

AWS Monitoring Ecommerce Lambda 127

Smashing Magazine

MARCH 19, 2021

Working around improving performance was an ongoing journey on SmashingMag for a while. In the end of last year we’ve noticed that we’ve seen quite a drop in performance in 2020, so we rolled up our sleeves and got to work. Gael Metais suggested to more aggressively subset web fonts and look into caching issues with our AVIF files.

Mobile 140

Mobile Design Cache Code 140

Smashing Magazine

AUGUST 20, 2021

Jamstack CMS: The Past, The Present and The Future. Jamstack CMS: The Past, The Present and The Future. Now there’s a massive range of Jamstack CMSs available, which bring all the advantages of static sites while allowing non-technical folk to update content. Mike Neumegen. 2021-08-20T08:00:00+00:00. 2021-08-20T09:19:47+00:00.

Ecommerce 139

Ecommerce Website Government Internet 139

ACM Sigarch

FEBRUARY 23, 2018

The rest of the article presents some examples of this behavior and how it impacts our field, whether we care to admit it or not. Present Bias. In Thaler’s book, he uses the term “present bias” to describe how people discount the future and give larger weight or value to decisions that are closer in time. Discounting the Past.

Architecture 47

Architecture Cache Hardware Virtualization 47

KeyCDN

SEPTEMBER 12, 2019

We normally focus solely on the performance aspect, but today we want to dive into additional ways you can optimize images for the web. The file size of your images of course is very important, but SEO and social media also play an important part in helping your website perform and convert better. KB (30%) without losses.

Social Media 106

Social Media Media Google Website 106

John McCalpin

DECEMBER 6, 2016

The modes that are important are: “Flat” vs “Cache” In “Flat” mode, MCDRAM memory is used as directly accessible memory, occupying the upper 16 GiB of physical address space. In “Cache” mode, MCDRAM memory is used as an L3 cache for the main DDR4 memory. numactl). GHz nominal).

Latency 40

Latency Cache Testing Systems 40

Smashing Magazine

NOVEMBER 22, 2021

Improving The Performance Of Wix Websites (Case Study). Improving The Performance Of Wix Websites (Case Study). It was at this point that we realized we needed to make a significant change in our approach towards performance, and that we must embrace performance as part of our culture. Dan Shappir. Large preview ).

Website 126

Website Performance Google Media 126

Scalegrid

DECEMBER 21, 2023

Buckle up as we delve into the world of Redis® monitoring, exploring the most important Redis® metrics, discussing essential tools, and even peering into the future of Redis® performance management. Key Takeaways Redis® monitoring is essential for safeguarding performance, reliability, and security.

Strategy 130

Strategy Monitoring Latency DevOps 130

MachMetrics

JULY 15, 2020

When a user requests a website, the browser must process all the information available to determine the layout and style. Perform an Audit of Your Site. Most any performance audit service will give you some indication of the CSS problems you have. However, if utilized carelessly, CSS can greatly affect our page speed.

Speed 78

Speed Website Cache Google 78

CSS Wizardry

NOVEMBER 9, 2018

Let me address that by combining my two favourite topics: CSS and performance. It’s really, really bad for Start Render performance. The introduction of the Preload Scanner improved web page performance by around 19%, all without developers having to lift a finger. What’s the Big Problem? Avoid using @import in your CSS files.

Network 278

Network Performance Media Cache 278