Dynatrace

OCTOBER 21, 2020

One of them being a small cache that would have brought the initial startup time down by about 95%. The problematic tenant on that Dynatrace cluster node, however, had well over 15,000 custom locations configured, which caused the spike in CPU and long execution time as each location was checked individually against the database!

Code 246

Code Cloud Engineering Java 246

Smashing Magazine

NOVEMBER 8, 2021

On top of this foundation, we add layers of caching, prerendering and edge delivery optimizations — not the other way around. Hydrogen fuels dynamic commerce by uniting React Server Components, streaming server-side rendering, and smart caching controls. Large preview ). This is not a debate about dynamic vs. static.

Cache 139

Cache Best Practices Strategy Servers 139

Speed Curve

JANUARY 19, 2025

Of course writes were much less common than reads, so I added a caching layer for reads, and that did the trick. So I decided to write my own message board in PHP and MySQL, which better managed transactions. But my original version was slow, because I queried the database for every page load.

Performance 98

Performance Google Speed Metrics 98

Dynatrace

JUNE 16, 2020

In that way, you could try to cache requests so that not every request hits the mainframe. Once you have completed the multidimensional analysis, you’ll of course want to monitor key metrics on a dashboard, detect trends, and get alerts when anomalies are discovered.

Innovation 207

Innovation Metrics Infrastructure Programming 207

The Morning Paper

OCTOBER 18, 2020

Radix Sort is carefully designed to make effective use of the L2 cache and sequential memory accesses, whereas Learned Sort is making random accesses all over the destination array. How can learned sort be adapted to make it cache-efficient? If it’s high performance you’re after, you can’t ignore mechanical sympathy.

Cache 137

Cache C++ Java Tuning 137

Percona

APRIL 24, 2023

The more indexes, the more the requirement of memory for effective caching. Indexes need more cache than tables Due to random writes and reads, indexes need more pages to be in the cache. Cache requirements for indexes are generally much higher than associated tables. Learn more about Percona Training

Tuning 139

Tuning Cache Storage Database 139

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”! IOWait is completely gone and now this system does not look I/O-bound at all!

Cache 145

Cache Monitoring Open Source Processing 145

CSS Wizardry

AUGUST 13, 2019

To further exacerbate the problem, the 302 response has a Cache-Control: must-revalidate, private. header , meaning that we will always make an outgoing request for this resource regardless of whether or not we’re hitting the site from a cold or a warm cache.

Latency 213

Latency Cache Strategy Media 213

The Morning Paper

MARCH 8, 2020

If all data was read from S3 every time, performance would suffer, so of course Snowflake has a caching layer – a distributed ephemeral storage service shared by all the nodes in a warehouse. The caching use case may be the most familiar, but in fact it’s not the primary purpose of the ephemeral storage service.

Storage 112

Storage Engineering Cache Serverless 112

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. The main minus of parameter embedding optimization is you don’t get efficient plan caching and reuse behavior like you do for parameterized plans. plan_handle , Q. SELECT TOP (@n).WHERE

Cache 144

Cache Strategy C++ Code 144

High Scalability

NOVEMBER 2, 2018

And, of course, Satoshi proposing Bitcoin, 10 years ago today. Then please recommend my well reviewed (30 reviews on Amazon and 72 on Goodreads!) book: Explain the Cloud Like I'm 10. They'll love it and you'll be their hero forever. $10 Some favorites…2/ Tim Berners Lee, proposing the World Wide Web in 1991.3/

Internet 126

Internet Internet Scalability Azure 126

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

The Morning Paper

FEBRUARY 6, 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

Brendan Gregg

APRIL 14, 2022

I've also used and helped develop many other technologies for debugging, primarily perf, Ftrace, eBPF (bcc and bpftrace), PMCs, MSRs, Intel vTune, and of course, [flame graphs] and [heat maps]. This diverse environment has always provided me with interesting things to explore, to understand, analyze, debug, and improve.

Java 142

Java Cloud Cache AWS 142

High Scalability

JULY 20, 2018

That means multiple data indirections mean multiple cache misses. Mark LaPedus : MRAM, a next-generation memory type, is being touted as a replacement for embedded flash and cache applications. Cliff Click : The JVM is very good at eliminating the cost of code abstraction, but not the cost of data abstraction.

Internet 121

Internet Internet Scalability Automotive 121

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. Adding caching when your app is already experiencing load is not easy.

Speed 94

Speed Cache Latency AWS 94

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

All Things Distributed

MAY 13, 2012

Of course non-AWS origins are also permitted. Query String based Caching: the ability to include query string parameters as part of the objects cache key. URL based configuration: the ability to configure cache behaviors based on URL path patterns. Customers will have a switch to turn query strings on or off.

Cache 95

Cache Latency AWS Website 95

Smashing Magazine

JULY 18, 2022

The “stale-while-revalidate” cache control strategy can reduce the TTFB issue by serving a cached version of the page until it’s updated. Once you understand that it’s all about caching renders and then getting the right cached render for each request, everything will click into place. And now we even pay for it!

Cache 127

Cache Website Servers Energy 127

Percona

JANUARY 9, 2023

NOTE : All tests were applied for MySQL version 8.0.30, and in the background, I ran every query three to five times to make sure that all of them were fully cached in the buffer pool (for InnoDB) or by the filesystem (for MyISAM). But why we can’t just cache the actual number of the rows? sec) What flash speed we saw there!

Cache 107

Cache Engineering Storage Speed 107

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. But I'd rather the cost be zero, of course!

Java 137

Java Cache Google Hardware 137

CSS - Tricks

APRIL 1, 2021

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. So, load it once, enjoy it many times. Text-based assets. KB to 11.2 That’s a win!

Cache 94

Cache Social Media Media Website 94

Smashing Magazine

AUGUST 15, 2021

Cache Merril. Whether it’s for a small company or multi-national enterprise, a well-developed business technology roadmap helps companies reach short and long-term digital transformation goals by allowing them to: Remain agile enough to accommodate course changes. Evaluate Current Systems And Chart A Course.

Technology 144

Technology Technology Development Strategy 144

SQL Performance

SEPTEMBER 25, 2019

The general idea is to cache and replay results, saving repeated executions of inner-side operators wherever possible. When a spool is able to replay cached results, this is known as a rewind. You may find it helpful to think of a spool rebind as a cache miss, and a rewind as a cache hit. Lazy Table Spool.

Performance 104

Performance Cache Servers Education 104

The Morning Paper

JUNE 23, 2019

Generally to cache data (including non-persistent data that never sees a backing store), to share non-persistent data across application services (e.g. ” Even re-reading that today, the letter of the law there is surprisingly strict to me: you can use the local memory space or filesystem as a brief single transaction cache, but no more.

Cache 79

Cache Latency Google Network 79

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. have been released since then with some major changes.

Performance 144

Performance Hardware Tuning Storage 144

MachMetrics

DECEMBER 20, 2018

Did you order a 5 course meal, but then only eat 2 of them? Of course not, that would be a waste. Now let’s upload our lazy-loading updates and try again: (Note that you’ll have to do hard-reload, clear cache, or use a new private browser to ensure we’re not taking advantage of the browser cache in our testing).

Cache 75

Cache Speed Internet Internet 75

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. Not as much as we'd like, of course, but the worldwide baseline has changed enormously. There are differences, of course, but not where it counts. The Moto G4 , for example.

Performance 127

Performance Network Mobile Metrics 127

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

CSS - Tricks

JULY 27, 2021

Of course, after all that, I couldn’t get them out of my head, so I had to spring into action and do the Step 2 stuff as soon as I could, and I’m happy to report I’ve done most of it and seen improvement. Especially as it affects cached page loads too. I took notes as we poked around. Self-host fonts.

Cache 98

Cache Testing Google Innovation 98

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 119

Cache Servers Internet Internet 119

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.

Hardware 18

Hardware Architecture Programming Innovation 18

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 108

Website Analytics Google Cache 108

Randon ASCII

SEPTEMBER 8, 2019

The fact that this shows up as CPU time suggests that the reads were all hitting in the system cache and the CPU time was the kernel overhead (note ntoskrnl.exe on the first sampled call stack) of grabbing data from the cache. This means that there is no caching between RuntimeBroker.exe and this file.

Latency 79

Latency Cache Programming Operating System 79

SQL Performance

NOVEMBER 10, 2021

The benefits in the iTVF case include the fact that you can involve it in a query, and as long as you pass repeating constant inputs, there’s the potential to reuse a previously cached plan. So, let’s try…. Here’s an attempt to implement the same query in an iTVF (don’t run this code yet): CREATE OR ALTER FUNCTION HR. . (

Cache 121

Cache Servers Code Database 121

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 125

Media Cache Website Mobile 125

Highly Scalable

SEPTEMBER 18, 2012

Network partitions of course can lead to violation of this guarantee. (G, Permanent redirection means that the client is able to cache the mapping between the shard and the node. This redirect is a one-time and should not be cached. In this article, we, of course, consider only a couple of applied techniques.

Database 213

Database Latency C++ Scalability 213