Dynatrace

JUNE 16, 2020

If zIIP eligible time is available, it indicates that workload could be offloaded to less expensive zIIPs, but currently they don’t have enough resources. In that way, you could try to cache requests so that not every request hits the mainframe. Multidimensional analysis has been available for IBM Z since Dynatrace version 1.193.

Innovation 151

Innovation Metrics Infrastructure Programming 151

Sutter's Mill

JUNE 10, 2010

I forgot to blog about this until now because of focusing on the Effective Concurrency course in Stockholm a few weeks ago, but to answer those who wonder if I’ll be giving it again in North America too: Yes, I’m also giving the public Effective Concurrency course again at the end of this month at the Construx facility in Bellevue, WA, USA.

Best Practices 40

Best Practices Scalability Cache Architecture 40

Smashing Magazine

SEPTEMBER 2, 2021

Knights of the Flexbox Table is another well-designed interactive course to help you learn the different aspects of the flexbox specification. This course is unique because you’re not writing pure CSS, but instead, you’re using Tailwind CSS classes, which means you’ll learn flexbox along with the syntax for Tailwind utility classes.

Development 145

Development Games Education Programming 145

Percona

MAY 1, 2023

Connection pooling: Minimizing connection overhead and improving response times for frequently accessed data by implementing mechanisms for connection pooling and caching strategies. This parameter sets how much dedicated memory will be used by PostgreSQL for the cache. However, the problem is not always the database itself!

Tuning 52

Tuning Efficiency Database Performance 52

Smashing Magazine

SEPTEMBER 9, 2021

The solution used in Scrapbook was to use the SWR library of React hooks to update the cached page from the server with client side data fetching. The client is first served the cached statically generated page (generated with getStaticProps() ), in the background the server also begins the process of revalidating that page (read more here ).

Cache 105

Cache Internet Internet Servers 105

The Morning Paper

FEBRUARY 23, 2020

It would be possible for a coordinator to also maintain their own giant copy of the public data available in the system, assuming some freshness guarantees, but the payment mechanisms in AnyLog make a crawl in advance of queries unattractive. Publishers and contractors enter into agreements via smart contracts. Incentives for contractors.

Blockchain 94

Blockchain Internet Internet IoT 94

Smashing Magazine

SEPTEMBER 20, 2021

And of course, scrapers could scrape your site to look for security vulnerabilities or exposed contact or sales lead details. Search Engine And Web Archive Cached Results. Another common category of imposter domains are domains used by search engines for delivering cached results or archived versions of page views. Ad Scraping.

Website 91

Website Analytics Google Cache 91

Smashing Magazine

MARCH 19, 2021

Gael Metais suggested to more aggressively subset web fonts and look into caching issues with our AVIF files. If a browser doesn’t support AVIF, it gets a JPEG file (properly cached), The content negotiation happens via <picture> + srcset in the browser. The next day we subset the fonts and pushed them live.

Mobile 141

Mobile Design Cache Code 141

Percona

AUGUST 31, 2018

This parameter sets how much dedicated memory will be used by PostgreSQL for cache. If your working set of data can easily fit into your RAM, then you might want to increase the shared_buffer value to contain your entire database, so that the whole working set of data can reside in cache. wal_buffers. effective_cache_size.

Tuning 55

Tuning Database Performance Benchmarking 55

The Morning Paper

SEPTEMBER 24, 2019

However, these fixes will only be available to users able to upgrade to Android Q — those with the means to own a newer smartphone. This, of course, positions privacy as a luxury good… Finding apps that leak data. Google, to their credit, have announced that they are addressing many of the issues that we reported to them.

Systems 74

Systems Traffic Network Google 74

SQL Performance

OCTOBER 20, 2022

Lock classes are available in this execution plan, but heap tables only use them to hold locks longer (for stability reasons) when the LOB data is off-row. This is true, of course, but there’s a bit more to say. The test procedure includes extra statements to prevent plan caching in another attempt to make the tests more repeatable.

Testing 91

Testing Servers Cache Engineering 91

Randon ASCII

OCTOBER 15, 2018

And, of course, this post will also cover how to detect and avoid this problem. A long-standing correctness bug in the Windows file cache: Compiler bug? The linear search for the next available log file name means that launching N processes takes (N^2)/2 file existence checks, so 30,000 * 30,000 / 2 which is 450 million.

Processing 57

Processing Cache Programming Virtualization 57

ACM Sigarch

FEBRUARY 23, 2018

In industry, engineers (me included) sometimes attack a problem with the tools they have readily available rather than taking a step back and examining the issue at large. Architects were always aware of the impact speculative execution has on the performance of microarchitectural structures from branch predictors to caches.

Architecture 47

Architecture Cache Hardware Virtualization 47

KeyCDN

SEPTEMBER 12, 2019

The file size of your images of course is very important, but SEO and social media also play an important part in helping your website perform and convert better. 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.

Social Media 106

Social Media Media Google Website 106

The Morning Paper

OCTOBER 6, 2019

There is a lot of rich information available regarding accommodations, which can be overwhelming for users. The supply of accommodation is constrained, and changing prices impact guest preferences. Guest preferences may change each time they use the platform (if e.g. booking only once or twice per year). Different types of model.

Latency 102

Latency Metrics Cache Design 102

Percona

JUNE 22, 2023

To make data count and to ensure cloud computing is unabated, companies and organizations must have highly available databases. This guide provides an overview of what high availability means, the components involved, how to measure high availability, and how to achieve it. How does high availability work?

Availability 105

Availability Database Open Source Hardware 105

Smashing Magazine

JANUARY 15, 2019

I, for one, have typically added Google Analytics to every site I manage as a matter of course. I predominantly use Nginx, and I have a particular fondness for FastCGI cache and have found it to be especially efficient. A particular favorite in the WordPress space is WP Super Cache. We should use HTTP2 over HTTPS.

Website Performance 74

Website Performance Website Energy Performance 74

Percona

JUNE 4, 2023

Critical features of MariaDB include robust security features like encryption at rest and in transit, user authentication, and role-based access control (RBAC), as well as high-performance query execution, advanced indexing techniques, and replication, clustering, and sharding, ensuring scalability and high availability.

Open Source 52

Open Source Servers Storage Scalability 52

The Netflix TechBlog

OCTOBER 29, 2020

This translates to a large number of app configurations to toggle feature availability and optimize the in-app experience for each production. For our use-case, we’re configuring the availability of production, version, and region specific app feature sets. remotely configurable files that get downloaded to the device.

Mobile 279

Mobile Cache Network Architecture 279

Brendan Gregg

MARCH 16, 2024

This technique saves two instructions in the prologue and epilogue and makes one additional general-purpose register (%rbp) available." 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.

Java 145

Java Cache Google Hardware 145

The Symphonia

JANUARY 21, 2019

We even put CI/CD front and center in our training courses ?—?we You can use various different sizes of build host (small, medium, large); you can use one of the predefined images as your build environment, or you can define your own docker image to use; and you can, if you want, cache data across build runs.

AWS 40

AWS Open Source Lambda Serverless 40

Smashing Magazine

JUNE 30, 2021

The web is streaming, meaning it has none of the resources locally available when you open an app for the first time. Of course, this model doesn’t come without its problems. The main thread is responsible for rendering the DOM (via preact and, if available, WebGL) and capturing UI events. 2021-06-30T12:00:00+00:00. The Future.

Games 145

Games Architecture Code C++ 145

Percona

APRIL 24, 2023

Effectively, the memory available for pages of the table gets less. The more indexes, the more the requirement of memory for effective caching. If we don’t increase the available memory, this starts hurting the entire performance of the system. Less-effective cache results in more datafile read, so read I/O is increased.

Tuning 124

Tuning Cache Storage Database 124

Scalegrid

FEBRUARY 8, 2024

Key Takeaways Distributed storage systems benefit organizations by enhancing data availability, fault tolerance, and system scalability, leading to cost savings from reduced hardware needs, energy consumption, and personnel. Variations within these storage systems are called distributed file systems.

Storage 130

Storage Systems Big Data Azure 130

Percona

MAY 10, 2023

In reality, though, of course, nothing changed for our first workload — it continues to be I/O-bound; it just became invisible when we look at “IOWait”! With this extension, we can clearly see which processes are runnable (running or blocked on CPU availability) and which are waiting on disk I/O!

Cache 142

Cache Monitoring Open Source Processing 142

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. Compressing, minifying and caching assets. We can compress our assets, minify our styles and scripts, and cache things responsibly so we’re serving what the user needs in the most efficient way possible. The final thing we can check is caching. Text-based assets.

Cache 92

Cache Social Media Media Website 92

Scalegrid

JULY 29, 2020

This is shared between all clients, so a pooled connection is available to all clients. High availability. PostgreSQL high availability is supported through Pgpool-II in-built watcher processes. Not supported – PgBouncer recommends use of HAProxy for high availability and load balancing. When are connections reused?

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Percona

MARCH 23, 2023

These guidelines work well for a wide range of applications, though the optimal settings, of course, depend on the workload. By caching hot datasets, indexes, and ongoing changes, InnoDB can provide faster response times and utilize disk IO in a much more optimal way. Typically a good value is 70%-80% of available memory.

Performance 124

Performance Hardware Tuning Storage 124

ACM Sigarch

NOVEMBER 4, 2019

In particular, she highlighted her transformative MIT’78 VLSI System Design Course she designed and taught as a Visiting Professor of EECS at MIT. Goodman, and “Speculative Cache Ways: On-Demand Cache Resource Allocation” published at MICRO 1999 by David H. Workshops and Tutorials.

Hardware 18

Hardware Architecture Programming Innovation 18

CSS Wizardry

AUGUST 13, 2019

There was no appetite from them to do so, so I decided to make it all available for free anyway—a faster web benefits everyone. To further exacerbate the problem, the 302 response has a Cache-Control: must-revalidate, private. All of the people I have dealt with seem like really, really nice folk.

Latency 203

Latency Cache Strategy Media 203

SQL Performance

OCTOBER 7, 2020

Its raison d’être is to cache result rows from a plan subtree, then replay those rows on subsequent iterations if any correlated loop parameters are unchanged. Table-valued functions use a table variable, which can be used to cache and replay results in suitable circumstances. Spools are the least costly way to cache partial results.

Servers 106

Servers Cache Azure Performance 106

SQL Performance

MAY 20, 2022

Each component is active at a different time during compilation and performs its own parameterization-related tasks using the information available at that time. Decisions about parameterization at this early stage are generic and conservative because the only information available is the statement itself. usecounts , CP.

Cache 55

Cache Database Servers Testing 55

All Things Distributed

JUNE 21, 2017

Today, I'm excited to announce the general availability of Amazon DynamoDB Accelerator (DAX) , a fully managed, highly available, in-memory cache that can speed up DynamoDB response times from milliseconds to microseconds, even at millions of requests per second. Fully managed cache for DynamoDB.

Speed 121

Speed Cache Latency AWS 121

Dynatrace

JULY 16, 2020

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. TenantCache: a cache to store tenant information and API token information and semi-permanent data to avoid unnecessary roundtrips. ?

Cache 234

Cache Serverless Efficiency Tuning 234

Percona

JULY 17, 2023

MongoDB replica sets enable data redundancy and automatic failover, setting the stage (there’s that term again) for high availability. Not really open source : Even the MongoDB Community version is not open source; it’s source-available and is under the SSPL license (introduced by MongoDB itself).

Open Source 75

Open Source Database Scalability Software 75

Smashing Magazine

FEBRUARY 27, 2024

Faster is better, of course, but the way Lighthouse reports it, a “passing” score comes in between 0 and 1.8 Of course, we can get that from the Performance API! There’s network timing, navigation timing, resource timing, and plenty of custom reporting features available on top of the Core Web Vitals we’ve looked at.

Performance 98

Performance Metrics Monitoring Google 98

Tim Kadlec

OCTOBER 17, 2010

Information on the how of performance has been available for awhile, but not until the last couple years have we really seen answers to the question of why. Of course, performance is not all that matters. (If The Expires header is used by the server to tell the browser how long a component can be cached for. Performance matters.

Performance 40

Performance Energy Google Internet 40