CSS Wizardry

AUGUST 24, 2022

What if another file on the critical path had dropped out of cache and needed fetching from the network? We can take reasonable measures (always refresh from a cold cache; throttle to a constant network speed), but we can’t account for everything. What if we incurred a DNS lookup this time that we hadn’t the previous time?

Benchmarking 212

Benchmarking Metrics Cache Network 212

KeyCDN

SEPTEMBER 3, 2020

Properly size images: Scaled images will definitely reduce the overall website size. Even if a browser doesn't support WebP, our WebP caching feature will ensure that the correct image format is delivered. WebP delivery doesn't require any change on the origin server with the WebP caching feature.

Processing 127

Processing Cache Website Servers 127

Smashing Magazine

JUNE 29, 2021

Without build optimizations (incremental builds, caching, we will get to those soon) this will eventually become unmanageable as well — think about going through all images in a website: resizing, deleting, and/or creating new files over and over again. The cache is invalidated on a time basis. Creating an On-Demand builder.

Cache 129

Cache Website Strategy Traffic 129

Percona

NOVEMBER 7, 2023

This book has five major sections on MVCC and Isolation (108 pages), Buffer Cache and WAL (53 pages), Locks (42 pages), Query Execution (154 pages), and the types of indexes (127 pages). How to read this book The best way to read this book is from the first page to the last, as the author builds on previous definitions and explanations.

Cache 91

Cache Servers Operating System Database 91

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? That being said, more and more often in my work I see lots of opportunities being left on the table through unconsidered or even completely overlooked caching practices.

Cache 264

Cache Latency Strategy Servers 264

Tim Kadlec

APRIL 10, 2023

I’ve seen a lot of sites suffering from extremely volatile TTFB metrics that vary dramatically based on geography or whether or not there’s a cache hit or miss. Measuring and optimizing your Time to First Byte is frequently a critical component of improving LCP. Another great example is the new Early Hints header.

Performance 111

Performance Servers Mobile Metrics 111

KeyCDN

DECEMBER 8, 2022

But if you have not optimized your WordPress properly, your WordPress will definitely be slower than your expectations. Many factors affect the speed of your WordPress website; some of them are: Your web host Server-side optimizations (PHP version, compression, caching, etc.) Traditionally, most WordPress hosts manage the caching.

Cache 52

Cache Website Speed Website Performance 52

SQL Performance

APRIL 13, 2020

His version can be used for the plan cache – the only challenge there is the information is transient, so you may not capture every query that uses a particular index. If possible, I'll also consider execution counts (from Query Store or the plan cache) to not just understand what query uses an index, but how frequently that query executes.

Tuning 137

Tuning Cache Metrics Testing 137

Tim Kadlec

JUNE 17, 2020

For all HTML responses, I pass a Cache-control: max-age=900, must-revalidate header. This tells the browser to cache the response for 15 minutes ( 900 ⁄ 60 ). Netlify also passes along an ‘Age’ header, indicating how long they’ve been caching the resource themselves. The Age Header.

Cache 80

Cache Servers Testing Performance 80

Smashing Magazine

NOVEMBER 26, 2021

checks for type definition during build time. Your application might also suffer from caching, and performance issues. They handle a lot of things like caching and performance which are difficult to manage on your own. However, most of the time, TypeScript will help you eliminate bugs even before you build your application.

Cache 143

Cache Code Testing Design 143

SQL Performance

JANUARY 11, 2021

all_columns ; The prepared statement from the application looked like this (as seen in the plan cache): ( @P0 varchar ( 8000 ) ) SELECT * FROM dbo.TheThings WHERE TypeID = @P0. We'd definitely prefer to change the query, or the indexes, if we could. But, again, we couldn't add the hint to the query directly.

Cache 59

Cache Tuning Database Performance 59

SQL Performance

MARCH 26, 2020

I often get the Execution Plan from the plan cache or Query Store , and then use SSMS to get the Execution Plan plus Run-Time Statistics (aka Actual Execution Plan). I much prefer her version to the standard sp_helpindex because it also lists INCLUDEd columns and the filter definition (if one exists).

Tuning 130

Tuning Cache Database Strategy 130

Tim Kadlec

APRIL 12, 2020

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. Trial and error is fine, and often the only way forward, but it’s always nice to have some definitive evidence to guide decisions.

Tuning 69

Tuning Cache Network Servers 69

SQL Performance

MAY 22, 2019

It’s one of the things we look at during a health audit, and Kimberly has a great query from her Plan cache and optimizing for adhoc workloads post that’s part of our toolkit. I’ve copied the query below, and if you’ve never run it against any of your production environments before, definitely find some time to do so. EXEC dbo. [

Cache 54

Cache Performance Hardware Servers 54

Dynatrace

APRIL 8, 2020

To give you the definitive root cause of these issues, we’re happy to announce our continuous memory profiler , which allows you to easily see the actual method and execution tree that’s responsible for creating the objects that are responsible for slow or frequent garbage collection. .

Speed 165

Speed Code Java Lambda 165

The Netflix TechBlog

MAY 19, 2023

Over time, each node caches a subset of subproblems to support a distributed cache, reduce the datastore load, and achieve SpiceDB’s horizontal scalability. SpiceDB walks the graph and decomposes it into subproblems. These subproblems are assigned through consistent hashing and dispatched to a node in a cluster running SpiceDB.

Cache 249

Cache Google Open Source Systems 249

Sutter's Mill

SEPTEMBER 28, 2023

x := my_vector.begin(); std::advance(x, 2); // ERROR, if param is Cpp2 'inout' or Cpp1 non-const '&' } In this example, that call to std::advance(x, 2); is a definite last use of x , and so Cpp2 will automatically pass x as an rvalue and make it a move candidate… and presto! set(flags), and.clear(flags).

C++ 89

C++ Cache Code Design 89

KeyCDN

SEPTEMBER 12, 2019

KeyCDN’s Cache Enabler plugin is fully compatible the HTML attributes that make images responsive. It also allows for additional control over the caching of your images as well as hotlink protection. The Cache Enabler plugin then delivers WebP images based to supported browsers. jpg 480 KB 407 KB 43 KB 89% jpg-to-webp-2.jpg

Social Media 106

Social Media Media Google Website 106

John McCalpin

SEPTEMBER 17, 2018

Processes running on the two Logical Processors share most of the processor resources (particularly caches and execution units). The programmable performance counter event that most closely corresponds to the Fixed-Function “Unhalted Reference Cycles” counter has changed names and definitions several times.

Hardware 40

Hardware Performance Cache Programming 40

Jos

APRIL 6, 2018

setState ( { initialized : true } ) ; // loadScript loads an external script, its definition is not included here. </ div >. ) ; If you do this, make sure that the images have the right cache response headers so subsequent requests from the browser hit the cache and it doesn’t download the images again. constructor ( ) {.

Code 147

Code Performance Media Google 147

Tim Kadlec

OCTOBER 8, 2015

They are able to selectively load things that will appear in the initial viewport and focus heavily on ensuring AMP pages are prerender and cache friendly. To further help achieve the goal of “instant load”, Google is offering to provide caching for these AMP pages through their CDN. You can limit your use of JavaScript.

Cache 75

Cache Google Mobile Open Source 75

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. directives , and full ownership mitigates the risks that come with leaving static assets on third-party origins.

Google 364

Google Media Latency Metrics 364

MachMetrics

DECEMBER 14, 2019

It is typically reduced via server-side optimizations, such as enabling caching and database indexes. After all, you definitely don’t want to be on the receiving end of their badge of shame ! Often, the hosting provider that you choose also plays a large role in whether or not you have a good TTFB. seconds on desktop and 2.59

Best Practices 105

Best Practices Speed Mobile Google 105

The Morning Paper

SEPTEMBER 24, 2019

you should definitely check it out if you don’t already know it!). Other apps access the router mac address either by reading the ARP cache (opening the file /proc/net/arp and reading its content) or by simply requesting the igd.xml (Internet gateway device configuration file) directly from the router itself.

Systems 74

Systems Traffic Network Google 74

MachMetrics

JUNE 1, 2020

This can be done by implementing browser caching, combining JavaScript and CSS files, and minimizing redirects. Definitely not ideal. Lowering the number of plugins and 3rd party scripts is another way we can lower the overall weight of our site. Test Your Mobile Speed! It may be even more important than desktop optimization.

Speed 67

Speed Mobile Testing Google 67

Jos

APRIL 5, 2018

setState ( &#123; initialized : true &#125; ) ; // loadScript loads an external script, its definition is not included here. I definitely recommend you to check out these 2 libraries: thebuilder/react-intersection-observer. state = &#123; initialized : false &#125; ; this. maps. . <

Code 130

Code Performance Google Media 130

Smashing Magazine

SEPTEMBER 2, 2021

You’ll definitely learn a lot about HTML and CSS with these exercises, but the techniques often won’t be useful in a real-world scenario. This video game-like environment goes through the service worker lifecycle, intercepting requests, working with caches, and more. “code golf”). Image source: CSSBattle ).

Development 145

Development Games Education Programming 145

Speed Curve

JUNE 18, 2019

Here's a short (and definitely not exhaustive) list of things that you may want to consider when running performance tests on an integration environment: Caches may need to be warmed up beforehand. Production environments typically have high cache hit ratios, and this should be replicated during performance testing.

Performance Testing 49

Performance Testing Testing Performance Cache 49

All Things Distributed

DECEMBER 5, 2010

There are two main types of DNS servers: authoritative servers and caching resolvers. Authoritative servers hold the definitive mappings. But the real robustness of the DNS system comes through the way lookups are handled, which is what caching resolvers do.

Cloud 117

Cloud Internet Internet AWS 117

MachMetrics

JULY 31, 2020

But we’ll definitely help you decide which is the best choice for your situation. Many caching plugins like WPRocket also offer Gzip compression right out of the box. You might have noticed 2 different compression options in your research, and wondered which was better. OK, not really. What is HTTP Compression?

Speed 67

Speed Servers Google Tuning 67

The Morning Paper

OCTOBER 6, 2019

Before you start building models, it’s worth spending time carefully constructing a definition of the problem you are trying to solve. clicks) that fails to convert into the desired business metric (e.g. Lesson 5: get early feedback on model quality.

Latency 102

Latency Metrics Cache Design 102

Scalegrid

DECEMBER 19, 2019

Once the authentication succeeds: PgBouncer checks for a cached connection, with the same username+database combination. If a cached connection is found, it returns the connection to the client. Pool definitions. The simplest definition is of the form: * = host=. Interfaces/IP:ports to listen for incoming connections.

Cache 246

Cache Architecture Database Servers 246

Rigor

DECEMBER 19, 2019

Let’s start with a brief definition of two of the more prominent web performance methodologies: synthetic monitoring and real user monitoring (also known as RUM). Understanding Web Performance Monitoring Methodologies. This is valuable because it allows users to block out much of the noise that is reported with real user monitoring.

Monitoring 40

Monitoring Benchmarking Website Traffic 40

Nick Desaulniers

MAY 15, 2016

Recently, there some was some confusion between myself and a coworker over the definition of a “word.” ” I’m currently working on a blog post about data alignment and figured it would be good to clarify some things now, that we can refer to later.

Programming 60

Programming Games Cache Design 60

Percona

SEPTEMBER 1, 2023

Exploring How Triggers Impact MySQL Memory Allocation MySQL stores active table descriptors in a special memory buffer called the table open cache. These table cache instances could be accessed concurrently, allowing DML to use cached table descriptors without locking each other.

Cache 64

Cache Database Games Healthcare 64

The Netflix TechBlog

JUNE 14, 2023

The GraphQL shim enabled client engineers to move quickly onto GraphQL, figure out client-side concerns like cache normalization, experiment with different GraphQL clients, and investigate client performance without being blocked by server-side migrations. To launch Phase 1 safely, we used AB Testing.

Traffic 353

Traffic Latency Cache Metrics 353

The Symphonia

MAY 22, 2018

I was a little restricted in my thinking the first time around and I’ve come to see FaaS as something not quite stateless, since caching state in a Lambda instance that might stick around for 5 hours is a perfectly reasonable idea. But I’ve already done that elsewhere, with John, so I left it with adding a link to our definition.

Serverless 40

Serverless Architecture Lambda Azure 40