Dynatrace

APRIL 8, 2020

Optimize your code by finding and fixing the root cause of garbage collection problems. These details arm you with the knowledge necessary to find the respective code and remove unnecessary allocations. Any significant reduction in allocations will inevitably speed up your code. You can even look at the source code directly. .

Speed 214

Speed Code Java Lambda 214

KeyCDN

NOVEMBER 19, 2020

In October 2015 KeyCDN released a free WordPress caching plugin called Cache Enabler. We did this because we wanted to give back to the WordPress community in the offering of a caching solution that was not complicated and most importantly, free. Over the last few months there have been many changes made to Cache Enabler.

Cache 116

Cache Network Open Source Speed 116

The Netflix TechBlog

JANUARY 6, 2025

Personalization systems handle the recommendation and serving of titles on these canvases, leveraging a vast ecosystem of microservices, caches, databases, code, and configurations to build these product canvases.

Scalability 219

Scalability Cache Engineering Systems 219

Dynatrace

SEPTEMBER 2, 2020

As part of the Platform Extensions team, I’m one of those responsible for services that include the Dynatrace OneAgent SDKs, which are libraries that allow us to extend end-to-end visibility for technologies and frameworks for which there is no code module available yet. Custom code. Instrument key portions of your application.

Monitoring 279

Monitoring Cache Open Source Database 279

DZone

APRIL 9, 2020

Expensive requests such as expensive searches or inefficient application code, components, etc. Insufficient dispatcher caching. Lack of browser caching. Thread contention — long-running requests such as slow searches, write-heavy background jobs, moving of whole branches of site content, etc. High CPU utilization. Lack of CDN.

Website Performance 264

Website Performance Website Performance Cache 264

The Netflix TechBlog

OCTOBER 29, 2020

You only need to write platform-specific code where it’s necessary, for example, to implement a native UI or when working with platform-specific APIs. Almost 50% of the production code in our Android and iOS apps is decoupled from the underlying platform. Debugging Kotlin source code from Xcode.

Mobile 279

Mobile Cache Network Technology 279

Smashing Magazine

MAY 9, 2022

Performance Game Changer: Browser Back/Forward Cache. Performance Game Changer: Browser Back/Forward Cache. With that caveat out of the way, let’s get to the guts of the article: What is the Back/Forward Cache and why does it matter so much? Didn’t The HTTP Cache Do All That Anyway? Barry Pollard.

Cache 106

Cache Games Performance Website 106

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. Browsers now understand the classic shared HTTP cache behaviour as a privacy bug.

Cache 89

Cache Government Traffic Network 89

CSS Wizardry

MAY 31, 2019

Users might already have the file cached. If website-a.com links to [link] , and a user goes from there to website-b.com who also links to [link] , then the user will already have that file in their cache. Penalty: Caching. This makes it very safe and sensible to enforce a reasonably aggressive cache policy.

Cache 277

Cache Latency Infrastructure Website 277

Dynatrace

DECEMBER 21, 2023

Evaluating these on three levels—data center, host, and application architecture (plus code)—is helpful. From here, it’s time to consider the next level of energy optimization, green coding. Level 3: Green coding The topic of carbon reduction in data centers was new to me when I began digging into it just two years ago.

Cloud 264

Cloud Energy Best Practices Cache 264

Dynatrace

JULY 16, 2020

TenantCache: a cache to store tenant information and API token information and semi-permanent data to avoid unnecessary roundtrips. ? These API tokens are then stored in a local cache (the TenantCache using Redis), alongside with other rather static information of the environments: ? tenant-token the current API token to use.

Cache 289

Cache Serverless Efficiency Tuning 289

Dynatrace

APRIL 7, 2022

One of these solutions is Micrometer which provides 17+ pre-instrumented JVM-based frameworks for data collection and enables instrumentation code with a vendor-neutral API. This can be set up with a couple of lines of code in your Spring Boot project. You can find all the details and sample code in our documentation.

Metrics 246

Metrics Java Latency Cache 246

Jos

APRIL 6, 2018

We are explicit about our dependencies, so we know what code we need to run to run a specific component. Lazy-loading and bundle splitting can have a huge impact on page performance: less code requested, parsed, and executed. When you send the user code that is not needed, you waste resources from your end, and from the user’s end.

Code 147

Code Performance Media Google 147

CSS Wizardry

SEPTEMBER 16, 2024

Interestingly, 304 responses are still a form of redirect: the server is redirecting your visitor back to their HTTP cache. Ensure you aren’t wastefully revalidating still-fresh resources : These files were revalidated for a repeat page view as they all carried Cache-Control: public, max-age=0, must-revalidate.

Latency 244

Latency Cache Transportation Mobile 244

The Netflix TechBlog

SEPTEMBER 8, 2020

On the Android team, while most of our time is spent working on the app, we are also responsible for maintaining this backend that our app communicates with, and its orchestration code. Image taken from a previously published blog post As you can see, our code was just a part (#2 in the diagram) of this monolithic service.

Latency 241

Latency Cache Java Traffic 241

John McCalpin

FEBRUARY 17, 2025

Sustainable memory bandwidth using multi-threaded code has closely followed the peak DRAM bandwidth, typically delivering best case throughput of 75%-85% of the peak DRAM bandwidth in each generation. GB/s peak DRAM bandwidth, requiring 6 concurrent 64-byte cache line accesses to be pending at all times to maintain full bandwidth.

Latency 71

Latency Hardware Cache Systems 71

Smashing Magazine

FEBRUARY 12, 2025

Half of the time is instead spent on a cross-origin redirect — a separate HTTP request that returns a redirect response before we can even make the request that returns the websites HTML code. However, if your content isnt dynamic, you can also cache responses at the CDN edge node.

Servers 78

Servers Latency Cache Website 78

Dynatrace

AUGUST 30, 2019

Missing Cache Settings – Make sure you cache resources that don’t change often on the browser or use a CDN. Missing caching layers, e.g. provide a read-only cache for static data. JavaScript Errors – Fix JavaScript exception as they impact user experience. Well – there are many answers to this.

Cache 214

Cache Database Architecture Government 214

Jos

APRIL 5, 2018

We are explicit about our dependencies, so we know what code we need to run to run a specific component. Lazy-loading and bundle splitting can have a huge impact on page performance: less code requested, parsed, and executed. When you send the user code that is not needed, you waste resources from your end, and from the user’s end.

Code 130

Code Performance Google Media 130

Dynatrace

NOVEMBER 28, 2022

For AWS Lambda, the largest contributor to startup latency is the time spent initializing an execution environment, which includes loading function code and initializing dependencies. With SnapStart enabled, function code is initialized once when a function version is published. What is Lambda? What is Lambda SnapStart?

Lambda 246

Lambda AWS Serverless Latency 246

Dynatrace

OCTOBER 7, 2021

Amazon compute solutions are designed to streamline resource provisioning and container management with two services: AWS Lambda : Lambda provides serverless compute infrastructure that lets you run code in response to predetermined events or conditions and automatically manage all compute resources required for these processes. Data Store.

Serverless 325

Serverless AWS Lambda Storage 325

The Netflix TechBlog

JULY 1, 2019

Our UI runs on top of a custom rendering engine which uses what we call a “surface cache” to optimize our use of graphics memory. Surface Cache Surface cache is a reserved pool in main memory (or separate graphics memory on a minority of systems) that the Netflix app uses for storing textures (decoded images and cached resources).

Cache 167

Cache Design Testing Development 167

The Netflix TechBlog

JULY 12, 2019

The Tech Hollow , an OSS technology we released a few years ago, has been best described as a total high-density near cache : Total : The entire dataset is cached on each node?—?there there is no eviction policy, and there are no cache misses. Near : the cache exists in RAM on any instance which requires access to the dataset.

Cache 184

Cache Architecture Latency Engineering 184

The Netflix TechBlog

SEPTEMBER 10, 2024

As the scale of the messages being processed increased and we were making more code changes in the message processor, we found ourselves looking for something more flexible. That Pushy delivers the message to the target device (4), and the original Pushy will receive a status code in response, which it can pass back to the source device (5).

Latency 234

Latency Cache Tuning Efficiency 234

Dynatrace

MAY 17, 2023

But its underlying goal is quite humble and straightforward: it wants to enable you to observe an IT system (for example, a web application, infrastructure, or services) and gain insight to its behavior, such as performance, error rates, hot spots of executed instructions in code, and more. Those are prime candidates for their own spans.

Metrics 245

Metrics Open Source Traffic Cache 245

Dynatrace

JUNE 18, 2019

Moreover, features like Instant Run and the Gradle Build Cache weren’t supported. Out-of-the-box support for Instant Run and the Gradle Build Cache make the auto-instrumentation process barely noticeable. Instead, you have to provide theses programmatically once you call the startup method in your app code. Supportability.

Cache 35

Cache Java Monitoring Tuning 35

The Netflix TechBlog

MAY 4, 2023

Adding forking logic and complexity to the device code can create dependencies on device application release cycles that generally run at a slower cadence than service release cycles, leading to bottlenecks in the migration. There is also an increased risk that bugs in the replay logic have the potential to impact production code and metrics.

Traffic 347

Traffic Latency Tuning Systems 347

Dynatrace

NOVEMBER 29, 2021

With Lambda, you are charged based on the number of requests for your functions and their duration (the time it takes for your code to execute) with millisecond granularity. This gives operations teams specific answers to help prioritize and the root cause with end-to-end visibility down to the code level to resolve the problem.

Lambda 246

Lambda AWS Serverless Metrics 246

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 276

Benchmarking Metrics Cache Network 276

Dynatrace

DECEMBER 23, 2020

Use the GET /applications/web/{id} endpoint to retrieve application configuration for both applications and open them in a code editor of your choice. In your code editor, insert the extracted action naming rules and placeholders into the configuration of the production environment.

Monitoring 246

Monitoring Mobile Cache Testing 246

ACM Sigarch

DECEMBER 19, 2022

We assume a base multi-core processor four-way-issue load/store machine with 64-bit integer/address registers Rx, 128-bit (16-byte) data registers Vx, and an L1 D-cache that can do two operations per cycle, each reading or writing an aligned 16-byte memory word. Cache pollution is addressed in a section below.). Cache Underpinning.

Design 145

Design Systems Cache Network 145

Smashing Magazine

NOVEMBER 2, 2021

Creating A Magento PWA: Customizing Themes vs. Coding From Scratch. Creating A Magento PWA: Customizing Themes vs. Coding From Scratch. One of the reasons for that is because a PWA has the same code base. So unlike the case with native applications, the progressive web app needs to be coded only once. Alex Husar.

Code 90

Code Cache Mobile Retail 90

Dynatrace

DECEMBER 20, 2021

What users see in their browser window and the underlying HTML code are both governed by the DOM, which creates a tree-like structure for all HTML elements. Once you can see where users are having trouble, you can trace back actions to connected elements of underlying code and reduce the time from identifying an issue to resolving it.

Mobile 264

Mobile Website Analytics Cache 264

CSS Wizardry

NOVEMBER 9, 2018

In fact, Google Analytics even tell us what to do, and they’re right: Copy and paste this code as the first item into the of every webpage you want to track. We’re also able to adopt a more deliberate caching strategy, only cache busting the files that need it and leaving the rest untouched. it can often be a net loss.

Network 279

Network Performance Media Cache 279

SQL Performance

OCTOBER 13, 2021

I also compare them with stored procedures, mainly focusing on differences in terms of default optimization strategy, and plan caching and reuse behavior. Before implementing the function itself, here’s code to create a supporting index on the Sales.Orders table: USE TSQLV5 ; GO. CREATE INDEX idx_nc_cid_odD_oidD_i_eid ON Sales.

Cache 144

Cache Strategy C++ Code 144

Smashing Magazine

SEPTEMBER 28, 2022

Every unnecessary bit of JavaScript code you bundle and serve will be more code the client has to load and process. How will you serve blazingly fast code, then? Jamstack is popular with documentation sites that usually compile code to HTML files and host them on the CDN. Active Memory Caching. Caching Schemes.

Cache 141

Cache Performance Servers Architecture 141

Dynatrace

MARCH 22, 2023

For these, it’s important to turn off auto-completing forms, encrypt data both in transit and at rest with up-to-date encryption techniques, and disable caching on data collection forms. To avoid these problems, set up automated DevSecOps release validation and security gates so that no insecure code progresses to production.

Open Source 246

Open Source Artificial Intelligence Internet Internet 246