Percona

MARCH 27, 2023

having to open each table.frm (and in which my test runs, I have purposely read a very high number of tables compared to “Table-open-cache” variable). When running only sysbench, there is a high number of cache hits (~99.98%) and a low number of “misses,” which means the table_cache is big enough for the workload.

Cache 99

Cache Hardware Servers Benchmarking 99

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 59

Cache Database Games Healthcare 59

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

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.

Cache 85

Cache Servers Operating System Database 85

Dynatrace

NOVEMBER 3, 2021

Monitoring , by textbook definition, is the process of collecting, analyzing, and using information to track a program’s progress toward reaching its objectives and to guide management decisions. Examples include a spike in memory utilization, a decrease in cache hit ratio, or an increase in CPU utilization.

Monitoring 220

Monitoring Metrics DevOps Scalability 220

Dynatrace

JULY 16, 2020

It would definitely make my life easier! This would also mean I need a service that detects any new environments, creates API tokens for them, refreshes API tokens on expiry and ensures that there is always a valid API token available. These parameters are then combined into the cache key to query the TenantCache.

Cache 234

Cache Serverless Efficiency Tuning 234

KeyCDN

FEBRUARY 4, 2021

For example, if a lookup fails and times out to your first DNS server it queries the next DNS server until the correct IP address is returned, or it is unable to resolve as seen in the infamous "This webpage is not available" error below. So DNS services definitely go down! Speed Speed also plays a role with DNS.

Cache 134

Cache Website Internet Internet 134

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. I definitely have some assets that are doing nothing but wasting time and space. Using the Network inspector in DevTools (or a tool you feel comfortable with), we can see some things that can definitely be removed from the site without changing its underlying behavior.

Cache 92

Cache Social Media Media Website 92

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

Smashing Magazine

OCTOBER 2, 2023

Definitely read up on the strategy and reasoning behind this stack in the first article if you missed it. Jump to the workshops ↬ Using CDN For Caching And WebP For Lighter File Sizes As I mentioned a little earlier, our stack includes Sanity’s CMS. For us, images are most definitely part of the LCP.

Cache 72

Cache Strategy Best Practices Design 72

Smashing Magazine

AUGUST 3, 2023

Core Web Vital metrics definitions. I know that is a lot of information to unpack in a single sitting, and it definitely took our team time to wrap our minds around what it takes to achieve a low LCP score. It also opens up the possibility for more effective use of caching strategies, potentially enhancing load times further.

Performance 74

Performance Cache Traffic Metrics 74

Percona

MARCH 20, 2023

When deciding what to pick, there are many things to consider, like where the proxy needs to be, if it “just” needs to redirect the connections, or if more features need to be in, like caching and filtering, or if it needs to be integrated with some MySQL embedded automation. Given that, there never was a single straight answer.

Games 119

Games Latency Traffic Cache 119

CSS Wizardry

NOVEMBER 9, 2018

This is definitely a bug in WebKit/Blink—missing quotes shouldn’t hide the @import ed stylesheet from the Preload Scanner. Let’s call that app.css : This carries three key inefficiencies: Any given page will only use a small subset of styles found in app.css : we’re almost definitely downloading more CSS than we need.

Network 278

Network Performance Media Cache 278

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

Dynatrace

AUGUST 12, 2019

From the hundreds of available Oracle performance metrics, we’ve selected those that matter most. The metrics are self-explanatory, so there’s no need for a detailed discussion of each, but a few metrics are definitely worth mentioning: If your Buffer cache hit is low, the database disk is used instead of RAM.

Database 127

Database Metrics Cache Servers 127

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

Dynatrace

APRIL 8, 2020

It prevents your application from fully leveraging the available CPU. This resource is not available to your application. . Even though there’s more CPU capacity available, your application can no longer make use of it. You should also be careful when adding any sort of cache or object reuse strategy.

Speed 165

Speed Code Java Lambda 165

MachMetrics

JUNE 30, 2021

John Mueller answered “YES” to this question in 2019, “site speed is definitely a ranking factor?”. You can make beautiful-looking websites with the supports of millions of themes & plugins available. Once you have configured the cache settings properly here comes the help of server response time and TTFB (Time To First Byte).

Cache 78

Cache Speed Google Website 78

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 ). After that, it has to revalidate—basically, talk to the server again to make sure the asset is still valid and a newer version isn’t available. The Age Header.

Cache 80

Cache Servers Testing Performance 80

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. Large preview ). Watch out for the Webpack Roadmap 2021.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JUNE 2, 2021

And while you can usually cache the full page of an article, the same is not true of many shop pages and elements. Some are user-specific, like the shopping cart in the header or the wish list, and due to the personal nature of the data, they should never be cached. But even in the planning phases, traps await. Large preview ).

Performance 115

Performance Cache Website Mobile 115

CSS - Tricks

MARCH 29, 2021

We could still use too many colors, typographic definitions, or z-indexes, all of which could lead to a messy, unmaintainable, unstable CSS codebase. For example, if there are “50 shades of gray” or too many typographic definitions, that means that the style guide wasn’t respected, or one might not even exist. Coverage panel.

Code 110

Code Media Cache Energy 110

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. Given its unchanging nature, static content is ideal for caching. By channeling static video content through these networks, you can avail of their cost-effective structures. The result?

Architecture 52

Architecture Performance Internet Internet 52

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

Smashing Magazine

JUNE 25, 2020

Today, we’ll address storing and serving files for both single-server and scalable deployments while considering factors like compression, caching, and availability. Definitions. Performance And Availability. Global Availability. Client-Side Caching. Part 2 : Templating Saves Lines.

Media 69

Media Cache Storage AWS 69

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

Smashing Magazine

NOVEMBER 17, 2022

Cache Your Images. A website’s performance can suffer if frequently accessed images are not cached, as many requests will be made to images that have already been loaded in the user’s system. But not only does it cache the original image, but it also stores all the transformations and combinations we make from it.

Media 105

Media Cache Website Mobile 105

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

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. These can be cached – much more effectively than what’s usually used:‍Standard CDNs for Static Content:The very nature of video streaming makes its traffic relatively straightforward to manage.

Architecture 52

Architecture Performance Internet Internet 52

Percona

MAY 15, 2023

Normally this solution requires a full code redesign and could be quite difficult to achieve when it is injected after the initial code architecture definition. Best practices indicate that having ProxySQL closer to the application will be more efficient, especially if we decide to activate the caching feature. That is all we need.

Traffic 121

Traffic Scalability Database Servers 121

Smashing Magazine

JANUARY 6, 2020

Usually, the most specific and relevant ones are: Time to Interactive (TTI) The point at which layout has stabilized, key webfonts are visible, and the main thread is available enough to handle user input — basically the time mark when a user can interact with the UI. Other options are available , too.

Performance 145

Performance Cache Network Metrics 145

John McCalpin

SEPTEMBER 17, 2018

Processes running on the two Logical Processors share most of the processor resources (particularly caches and execution units). It was not immediately obvious how to obtain this split from the available performance counters. leaving half of the Logical Processors idle). Logical Processor 0 Active, Logical Processor 1 Inactive.

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

Smashing Magazine

MARCH 7, 2022

That user preference is available in two (hopefully soon to be three!) This is available behind a flag in Chrome, but not yet on by default while it finishes standardization. The main one is that the definitions of the 4 types are all fixed, and based on quite old network data. Save Data API. More after jump!

Website 103

Website Media Mobile Network 103

KeyCDN

SEPTEMBER 12, 2019

The PHP library for the API is available on GitHub. 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. You definitely don’t want people seeing those, especially Google.

Social Media 106

Social Media Media Google Website 106

Smashing Magazine

JANUARY 7, 2019

Time to Interactive (TTI) The point at which layout has stabilized, key webfonts are visible, and the main thread is available enough to handle user input — basically the time mark when a user can interact with the UI. Still, it’s not that difficult , and its support is coming, e.g. it’s available since Apache 2.4.26.

Performance 103

Performance Cache Metrics Network 103

The Morning Paper

SEPTEMBER 24, 2019

you should definitely check it out if you don’t already know it!). However, these fixes will only be available to users able to upgrade to Android Q — those with the means to own a newer smartphone. The OpenX SDK was found to be using the ARP cache side channel, and the code makes it clear the authors knew what they were doing.

Systems 74

Systems Traffic Network Google 74