Brendan Gregg

FEBRUARY 28, 2023

## References I've reproduced the references from my SREcon22 keynote below, so you can click on links: - [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] Jul 2008 - [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] 2010 - [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency?

Performance 103

Performance Latency Cache Virtualization 103

MachMetrics

JUNE 30, 2021

Website performance & speed plays a major role in the success of an online business. Many people often confuse site speed with page speed grades of performance testing tools, which are actually calculated based on multiple factors of a page including its loading speed. How to get these matrics right and not mess up?

Cache 78

Cache Speed Google Website 78

MachMetrics

DECEMBER 20, 2018

It’s now almost 2019, and there are no more excuses. Most browsers implement the Intersection Observer API, common libraries make it super simple to implement, and speed is more important than ever. The post If You’re Not Lazy Loading Your Images, You’re Being Wasteful appeared first on MachMetrics Speed Blog.

Cache 75

Cache Speed Internet Internet 75

KeyCDN

MAY 14, 2019

This will reduce the total number of image operations because once the image has been processed it will be cached by our shield servers, allowing our edge servers to pull and cache the processed image instead of having to process the image again. This will improve the image processing performance and decrease the overall cost.

Processing 13

Processing Cache Network Latency 13

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. The worldwide ASP 18 months ago was ~$300USD , so the average performance in the deployed fleet can be represented by a $300 device from mid-2019. So what did $150USD fetch in 2019?

Performance 127

Performance Network Metrics Cache 127

Smashing Magazine

APRIL 17, 2019

2019-04-17T12:30:16+02:00. 2019-04-29T18:34:58+00:00. The browser caches the results of these lookups, but they can be slow. You might think of a prefetch as being a bit like adding a file to the browser’s cache. Speed Up Next-Page Navigations With Prefetching ,” Addy Osmani. (il). Drew McLellan. The as Attribute.

Performance 107

Performance Servers Games Cache 107

The Morning Paper

OCTOBER 4, 2020

We are standing on the eve of the 5G era… 5G, as a monumental shift in cellular communication technology, holds tremendous potential for spurring innovations across many vertical industries, with its promised multi-Gbps speed, sub-10 ms low latency, and massive connectivity. km university campus. Throughput and latency.

Energy 130

Energy Latency Performance Network 130

KeyCDN

SEPTEMBER 12, 2019

When it comes to marketing your website, there are a lot of different aspects to consider, such as speed, SEO, conversation rates, bounce rate, and many others. Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8 The Cache Enabler plugin then delivers WebP images based to supported browsers.

Social Media 106

Social Media Media Google Website 106

The Morning Paper

SEPTEMBER 19, 2019

We’ve been covering papers from VLDB 2019 for the last three weeks, and next week it will be time to mix things up again. I really do want to cover this one at some point, along with Implementation of cluster-wide logical clock and causal consistency in MongoDB from SIGMOD 2019. Do we want that? Yes please!

Blockchain 46

Blockchain Hardware Google Speed 46

Alex Russell

DECEMBER 18, 2022

We're burning our inheritance and polluting the ecosystem on shockingly thin, perniciously marketed claims of "speed" and "agility" and "better UX" that have not panned out at all. Speeds will be much slower than advertised in many areas , particularly for rural users. 4GiB of RAM.

Performance 120

Performance Mobile Network Latency 120

KeyCDN

JANUARY 31, 2019

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. According to Wikipedia , Romania ranked 5th place worldwide for the average connection speed of 38.60Mb/s. million Romanian eCommerce users who spend an average of $237.38

Internet 48

Internet Internet Ecommerce Speed 48

HammerDB

JUNE 27, 2022

This post is targeted towards the questions most often asked by non-technical management who want to get up to speed on what HammerDB is (what it isn’t) and how it can benefit their organization. Cached vs Scaled Workloads. Instead, most users prefer to implement a cached workload. What is HammerDB? Adoption by the TPC.

Benchmarking 63

Benchmarking Open Source C++ Cache 63

SQL Performance

MARCH 8, 2021

They are run on SQL Server 2019 CU9 , on a laptop with 8 cores, and 16GB of memory allocated to the SQL Server 2019 instance. This uses hardware, typically a crystal oscillator, that produces ticks at a very high constant rate regardless of processor speed, power settings, or anything of that nature. Batch Mode Serial Execution.

Servers 95

Servers Tuning Architecture Performance 95

Brendan Gregg

FEBRUARY 28, 2023

References I've reproduced the references from my SREcon22 keynote below, so you can click on links: [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] , Jul 2008 [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] , 2010 [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency?

Performance 52

Performance Latency Cache Virtualization 52

SQL Performance

APRIL 27, 2020

Hyperscale achieves high performance from each compute node having SSD-based caches which helps minimize the network round trips to fetch data. There is a lot of awesome technology involved with Hyperscale in how it is architected to use SSD-based caches and page servers.

Azure 55

Azure Database Serverless Hardware 55

SQL Performance

JULY 16, 2019

Now, I am advising people to strongly consider AMD for SQL Server workloads as the AMD EPYC "Rome" processors are released in Q3 of 2019. They will also have up to 256MB of L3 cache per processor. So, what has changed my mind? The Death of Tick-Tock. Figure 2: AMD EPYC Rome Processor. There are many reasons!

Servers 46

Servers Hardware Architecture Retail 46

SQL Performance

APRIL 8, 2019

This processor has a base clock speed of 2.0GHz, with an all-core boost speed of 2.55GHz, and a max boost clock speed of 3.0GHz. The L3 cache size is 64MB. This processor has a base clock speed of 3.1GHz, with an all-core boost speed of 3.6GHz, and a max boost clock speed of 3.8GHz.

Azure 42

Azure Virtualization Storage Benchmarking 42

Enprowess

JANUARY 12, 2022

Web development is evolving at a rapid speed with each passing year. And so, it optimizes the page loading speed and reduces the bounce rate. So it is convenient for all to use irrespective of internet speed and it works offline using cached data. Reduced Financial Business Cost Speed. Secure Payment Transactions.

Blockchain 59

Blockchain IoT Development Serverless 59

Smashing Magazine

APRIL 9, 2019

2019-04-09T12:30:59+02:00. 2019-04-29T18:34:58+00:00. They’d take the hit for the first site to use the file, but then it would sit in their local browser cache and downloads could be skipped for each subsequent site. Understanding Subresource Integrity. Understanding Subresource Integrity. Drew McLellan.

Website 59

Website Servers Code Best Practices 59

Rigor

JULY 2, 2019

Because HTTP redirection is handled server-side, it is typically faster than client-side redirection, especially if the browser can cache the new location of the requested file. Originally published September 2016, updated July 2019. Using JavaScript Redirection. REQUEST A FREE TRIAL OF RIGOR.

Mobile 60

Mobile Traffic Google Latency 60

Smashing Magazine

JANUARY 21, 2019

2019-01-21T13:00:21+01:00. 2019-04-29T18:34:58+00:00. This article was updated on January 31, 2019 to react to readers’ feedback. Let’s analyze how these three methods compare to each other, in terms of speed and the amount of data retrieved. Native Client-Side Cache/Data Store. Introducing The Component-Based API.

Social Media 65

Social Media Database Media Website 65

CSS Wizardry

MARCH 3, 2019

To this end, having a solid caching strategy can make all the difference for your visitors. ?? How is your knowledge of caching and Cache-Control headers? — Harry Roberts (@csswizardry) 3 March, 2019. Cache-Control. The amount of control we’re granted makes for very intricate and powerful caching strategies.

Cache 266

Cache Latency Strategy Servers 266

The Morning Paper

SEPTEMBER 12, 2019

The Apache MADLib project is still going strong, and the recent (July 2019) 1.16 A pipeline breaker occurs when the output of one operator must be materialized to disk or transferred over the network, as opposed to being directly communicated from operator to operator via CPU cache, or, in the worst case, via RAM.

Network 44

Network Database Programming Hardware 44

Smashing Magazine

OCTOBER 29, 2019

Speed Up Your Website With WebP. Speed Up Your Website With WebP. 2019-10-29T12:30:59+02:00. 2019-10-29T13:36:09+00:00. Needless to say, there’s nothing that can beat WebP when it comes to speed while maintaining image integrity. “. What Is WebP Caching? And WebP caching is only going to make it better.

Website 73

Website Speed Cache Google 73

KeyCDN

JULY 11, 2019

Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8 For example, while the average mobile download speed on 4G in Switzerland is fast at 35.2 Mbps, countries with a growing Internet users like India is only at an average mobile download speed of 6.8 KB and the average mobile page is 1,683.5

Speed 52

Speed Website Mobile Latency 52

Smashing Magazine

OCTOBER 26, 2018

2019-04-29T18:34:58+00:00. In addition to MVC separation, we can (for security reasons or speed improvements) place the JS App on a separate server like in the schema below: Decoupled WordPress diagram. Headless WordPress: The Ups And Downs Of Creating A Decoupled WordPress. Denis Žoljom. 2018-10-26T13:45:46+02:00. Large preview ).

Cache 79

Cache Website Speed Testing 79

Smashing Magazine

OCTOBER 22, 2019

2019-10-22T12:30:59+02:00. 2019-10-22T13:06:35+00:00. At the intersection of the two is website speed. It should come as no surprise that images cause a lot of the problems websites have with speed. According to HTTP Archive : The median size of a desktop website in 2019 is 1939.5 Suzanne Scacca.

Mobile 64

Mobile Media Website Storage 64

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]. 2019-01-07T12:00:13+00:00. 2019-04-29T18:34:58+00:00. Start Render time, Speed Index ). Vitaly Friedman. Web performance is a tricky beast, isn’t it?

Performance 105

Performance Cache Metrics Network 105

Smashing Magazine

JANUARY 6, 2020

You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Start Render time, Speed Index ). Treo Sites provides competitive analysis based on real-world data.

Performance 112

Performance Cache Network Servers 112

Smashing Magazine

JANUARY 21, 2021

Back in 2017 we built the entire site with Preact, but then have moved to React in 2019 — and use it along with a few APIs for search, comments, authentication and checkout. Back in 2017, the entire layout was built with Flexbox and rebuilt with CSS Grid and CSS Custom Properties in mid-2019.

Performance 111

Performance Cache Mobile Network 111

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. You can create your own on Chrome UX Dashboard. Large preview ). Large preview ).

Performance 145

Performance Cache Media Metrics 145