Brendan Gregg

APRIL 14, 2022

my pandemic-abandoned desk (2020); office wall. Netflix has been the best job of my career so far, and I'll miss my colleagues and the culture. offer letter logo (2014). flame graphs (2014). eBPF tools (2014-2019). PMC analysis (2017). I joined Netflix in 2014, a company at the forefront of cloud computing with an attractive [work culture].

Java 142

Java Cloud Cache AWS 142

KeyCDN

NOVEMBER 4, 2021

You can quickly check the response headers using Chrome DevTools , a speed test tool , or a simple curl command like the one below: curl -I '[link] 200server: keycdn-enginedate: Thu, 04 Nov 2021 11:39:01 GMTcontent-type: image/x-iconlast-modified: Thu, 16 Jul 2020 07:06:27 GMTvary: Accept-Encodingetag: W/"5f0ffc73-1536"expires: Thu, 11 Nov (..)

Latency 111

Latency Cache Tuning Traffic 111

The Morning Paper

FEBRUARY 6, 2020

arXiv 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).

Serverless 98

Serverless Lambda Cache Latency 98

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. twitter.com/slightlylate/status/1139684093602349056 455 06:18 AM · Feb 28, 2020. A silver lining on this dark cloud is that mobile JavaScript payload growth paused in 2020. How bad is it?

Performance 127

Performance Network Mobile Metrics 127

Brendan Gregg

MARCH 16, 2024

Only in extreme circumstances does the cost (in processor time and I-cache footprint) translate to a tangible benefit - circumstances which usually resort to hand-coded assembly anyway. It shouldn't be 10%, unless it's cache effects. And for leaf routines (which never establish a frame), this is a non-issue.

Java 137

Java Cache Google Hardware 137

Brendan Gregg

JULY 2, 2021

cachestat File system cache statistics line charts. Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization. execsnoop New processes (via exec(2)) table. opensnoop Files opened table. ext4slower Slow filesystem I/O table.

Latency 144

Latency Cache Energy Systems 144

Smashing Magazine

NOVEMBER 22, 2021

A website’s performance can make or break its success, yet in August 2020, despite many improvements we had previously made, such as implementing Server-Side Rendering (SSR), the ratio of Wix websites with good Google Core Web Vitals (CWV) scores was only 4%. The results of some of these APIs are also cached in a CDN as appropriate.

Website 141

Website Performance Google Website Performance 141

ACM Sigarch

NOVEMBER 4, 2019

Goodman, and “Speculative Cache Ways: On-Demand Cache Resource Allocation” published at MICRO 1999 by David H. MICRO 2020 will be in Athens, Greece. Two Test of Time awards went to: “Speculative Lock Elision: Enabling Highly Concurrent Multithreaded Execution” published at MICRO 2001 by Ravi Rajwar and James R.

Hardware 18

Hardware Architecture Programming Innovation 18

Official Blog - World Web Technology

AUGUST 27, 2023

The PHP 8 version launched in 2020 is the latest. Various techniques, such as caching and optimization, improve the website’s performance and speed. Furthermore, opcode caching allows developers to speed up PHP code execution. Not just websites, you can use PHP for graphical user interface development.

Development 98

Development Ecommerce Open Source Website 98

The Netflix TechBlog

DECEMBER 17, 2019

This way, log event processing can resume event-by-event afterwards, eventually discovering the watermarks, without ever needing to cache log event entries. We are planning to open source DBLog in 2020 and include additional documentation.

Database 221

Database Traffic Transportation Open Source 221

The Netflix TechBlog

DECEMBER 17, 2019

This way, log event processing can resume event-by-event afterwards, eventually discovering the watermarks, without ever needing to cache log event entries. We are planning to open source DBLog in 2020 and include additional documentation.

Database 206

Database Traffic Transportation Open Source 206

Smashing Magazine

JULY 16, 2020

2020-07-16T11:00:00+00:00. 2020-07-16T11:35:57+00:00. Splitting code assists with the browser’s cache resources and with code that doesn’t change often. Methods Of Improving And Optimizing Performance In React Apps. Methods Of Improving And Optimizing Performance In React Apps. Shedrack Akintayo. Dynamic imports.

Performance 125

Performance Code Virtualization Processing 125

Smashing Magazine

JUNE 25, 2020

2020-06-25T12:30:00+00:00. 2020-06-25T15:34:35+00:00. Today, we’ll address storing and serving files for both single-server and scalable deployments while considering factors like compression, caching, and availability. Client-Side Caching. Django Highlights: Wrangling Static Assets And Media Files (Part 4). Philip Kiely.

Media 77

Media Cache Storage AWS 77

MachMetrics

JUNE 30, 2021

Thanks to the awesome caching plugins available for WordPress will make your site much faster and make your pages feel lightweight when configured correctly. You will still be configuring your site caching and organize the assets in such a way that the page passes web vital tests + and loads a lot quicker. Enable caching.

Cache 78

Cache Speed Google Website 78

Brendan Gregg

FEBRUARY 28, 2023

TCP Extensions for Multipath Operation with Multiple Addresses,” [link] , Mar 2020 [Gregg 20] Brendan Gregg, “Systems Performance: Enterprise and the Cloud, Second Edition,” Addison-Wesley, 2020 [Hruska 20] Joel Hruska, “Intel Demos PCIe 5.0 Clone Disk],” [link] , 2020 [Moore 20] Samuel K. Ford, et al., “TCP Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Smashing Magazine

AUGUST 3, 2023

It was only in 2020, though, that Google shared its concept of Core Web Vitals and how it impacts SEO efforts. It also opens up the possibility for more effective use of caching strategies, potentially enhancing load times further. The higher our organic traffic, the more profitable we become as a company. Bookaway site search.

Performance 78

Performance Cache Traffic Metrics 78

Smashing Magazine

NOVEMBER 2, 2021

But here are some recent PWA-related findings by Maximiliano Firtman regarding Chrome: The number of origins with PWAs grew 170% in 2020. However, at the end of 2020, about 1% of websites included a Service Worker, and 2.2% When working on the offline mode, choose the service worker in combo with cache API. What Does This Mean?

Code 90

Code Cache Mobile Retail 90

Dotcom-Montior

JUNE 25, 2020

Did you know that around 306 billion emails have been sent globally every day in 2020 and about 45 percent of all emails received are spam. Sometimes, even if the IP address has been removed from the DNS database, the cache still contains the address. Email servers tend to blacklist certain IDs as spam based on their content.

Monitoring 86

Monitoring Traffic Website Database 86

KeyCDN

NOVEMBER 29, 2022

You can quickly check the response headers using Chrome DevTools or a simple curl command like the one below: curl -I [link] 200server: keycdn-enginedate: Fri, 25 Nov 2022 09:05:47 GMTcontent-type: image/jpegcontent-length: 195025last-modified: Thu, 16 Jul 2020 07:06:27 GMTvary: Accept-Encodingetag: "5f0ffc73-2f9d1"expires: Fri, 02 Dec 2022 (..)

Latency 60

Latency Cache Tuning Traffic 60

Smashing Magazine

JUNE 18, 2020

2020-06-18T10:30:00+00:00. 2020-06-18T11:06:06+00:00. Solving Common Cross-Platform Issues When Working With Flutter. Solving Common Cross-Platform Issues When Working With Flutter. Carmine Zaccagnino. I’ve seen a lot of confusion online regarding Web development with Flutter and, often, it’s sadly for the wrong reasons.

Storage 103

Storage Mobile Website Java 103

Percona

MAY 2, 2023

This blog was originally published in September 2020 and was updated in May 2023. Cons of logical backups As it reads all data, it can be slow and will require disk reads too for databases that are larger than the RAM available for the WT cache—the WT cache pressure increases, which slows down the performance.

Best Practices 52

Best Practices Database Storage Servers 52

Smashing Magazine

FEBRUARY 3, 2022

Measuring the carbon footprint of the web isn’t an exact science, but a report by the BBC in 2020 estimates that all internet activity accounts for around 3.7% These numbers are based on first-page load — caching seems very efficient for subsequent page loads. of global emissions (similar to the airline industry), and rising.

Social Media 121

Social Media Media Website Airlines 121

KeyCDN

JUNE 16, 2021

You can quickly check the response headers using Chrome DevTools , a speed test tool , or a simple curl command like the one below: curl -I '[link] 200server: keycdn-enginedate: Wed, 16 Jun 2021 22:06:30 GMTcontent-type: image/x-iconlast-modified: Thu, 16 Jul 2020 07:06:27 GMTvary: Accept-Encodingetag: W/"5f0ffc73-1536"expires: Wed, 23 Jun (..)

Cache 52

Cache Tuning Network Speed 52

MachMetrics

MAY 14, 2020

When we gave a complete overview of the state of the web in 2020 we challenged our readers to compare their own website metrics to the multiple metric averages. Since we published that article at the start of 2020, the median website has grown ~4% larger according to HTTP Archive. Compress and cache your website.

Website 52

Website Testing Speed Cache 52

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. Upon receipt of a valid Alt-Svc header indicating HTTP/3 support, the browser will cache this and try to set up a QUIC connection from then on.

Network 120

Network Servers Cache Traffic 120

MachMetrics

DECEMBER 27, 2019

Obviously this means that there is a ton of work to be done going into 2020 for web performance. As we mentioned in our article Average Page Load Times for 2020 , mobile page speed is a huge deal going forward. TTFB is typically reduced via server-side optimizations, such as enabling caching and database indexes.

Performance 52

Performance Speed Website Mobile 52

Percona

NOVEMBER 1, 2023

forked process: 25 2020-04-10T14:04:49.808+0000 I CONTROL [main] ** SERVER RESTARTED ** 2020-04-10T14:04:49.812+0000 I CONTROL [main] Automatically disabling TLS 1.0, In the example below, I will show how to set the WiredTiger cache. about to fork child process, waiting until server is ready for connections.

Scalability 75

Scalability Best Practices Servers Database 75

Percona

SEPTEMBER 1, 2023

This post was originally published in June 2020 and was updated in September 2023. Efficient memory management, including optimizing query caches and buffer pools, can help strike the right balance between memory consumption and query response times. Another highly beneficial caching method is key-value caching.

Tuning 52

Tuning Database Performance Hardware 52

Brendan Gregg

APRIL 14, 2022

offer letter logo (2014) flame graphs (2014) eBPF tools (2014-2019) PMC analysis (2017) my pandemic-abandoned desk (2020); office wall I joined Netflix in 2014, a company at the forefront of cloud computing with an attractive work culture. Netflix has been the best job of my career so far, and I'll miss my colleagues and the culture.

Java 52

Java Cloud Cache AWS 52

Speed Curve

DECEMBER 16, 2024

Re-vital-ized Vitals dashboard Since we first launched the Vitals dashboard back in December of 2020, we've heard from many of you who want to expand the scope of the dashboard to include other meaningful metrics that are not technically considered Core Web Vitals. Back in September, we gave the Vitals dashboard a complete refresh.

Cache 52

Cache Google Metrics Hardware 52

Smashing Magazine

JUNE 26, 2020

2020-06-26T14:00:00+00:00. 2020-06-26T14:19:08+00:00. Inspired Design Decisions With Giovanni Pintori: Publicity Becomes An Art Form. Inspired Design Decisions With Giovanni Pintori: Publicity Becomes An Art Form. Andrew Clarke. A few of these projects lasted a year, some several months, but the majority for no more than a few weeks.

Design 112

Design Media C++ Energy 112

SQL Performance

JULY 16, 2019

They will also have up to 256MB of L3 cache per processor. For many of these organizations, the second half of 2019 into the first half of 2020 will be a window where it will make sense to finally upgrade.

Servers 46

Servers Hardware Architecture Retail 46

Speed Curve

FEBRUARY 25, 2024

Guest profiles also start with empty caches, empty cookie stores, empty browser storage, etc. The examples were captured in Chrome Canary on a 2020 i5 MacBook Pro without CPU throttling enabled. These may get populated during testing, but we can clear them at any time via Application > Storage > Clear Site Data in DevTools.

Analytics 94

Analytics Processing Google Mobile 94

Brendan Gregg

JULY 2, 2021

cachestat File system cache statistics line charts 7. Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization 1. execsnoop New processes (via exec(2)) table 2. opensnoop Files opened table 3. ext4slower Slow filesystem I/O table 4.

Open Source 40

Open Source Latency Cache Energy 40

Enprowess

JANUARY 12, 2022

So it is convenient for all to use irrespective of internet speed and it works offline using cached data. A few years ago, The dark mode was first introduced, but from 2020 through 2021 has gained immense popularity. Offline Support : SPA consumes less bandwidth; meanwhile, it loads pages once only. Dark Mode.

Blockchain 59

Blockchain IoT Development Serverless 59

Enprowess

MARCH 10, 2022

It depends on you how skillfully you utilize the combination of JSON and client-side caching to boost the server-side performance. The Below line chart is from Hntrends , which shows 2020 highlights for the percentage of job posts related to Angular and React. Job Market of React Vs Angular.

Development 52

Development Google Servers Code 52

CSS Wizardry

MAY 19, 2020

It’s widely accepted that self-hosted fonts are the fastest option: same origin means reduced network negotiation, predictable URLs mean we can preload , self-hosted means we can set our own cache-control. pic.twitter.com/k6obyVZGZP — Harry Roberts (@csswizardry) 11 May, 2020. What else could I do to make Google Fonts fast ?

Google 364

Google Media Latency Metrics 364