High Scalability

FEBRUARY 25, 2019

The previous article described the caching algorithms used by Caffeine , in particular the eviction and concurrency models. This allows for quickly discarding new arrivals that are unlikely to be used again, guarding the main region from cache pollution.

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Cache Design Database Analytics 200

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 83

Cache Code Government Engineering 83

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.

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Cache Code Network Speed 120

DZone

AUGUST 12, 2019

Caching is extremely useful in order to speed up PHP webpages. In this article, I’ll show you how to make a simple PHP caching system for your web pages. When working on PHP websites made from scratch and without a framework, speed can often be an issue.

Cache 146

Cache Efficiency Speed Website 146

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 83

Cache Performance Games Testing 83

Uber Engineering

JANUARY 16, 2023

Uber’s interactive analytics team shares how they integrated Alluxio’s data caching into Presto, the SQL query engine powering thousands of daily active users on petabyte scale at Uber, to dramatically reduce data scan latencies through leveraging Presto on local disks.

Cache 81

Cache Latency Speed Analytics 81

DZone

JULY 23, 2020

There are two effective methods to improve the load time — data caching and using a content delivery network (CDN). In an attempt to speed up their websites, owners are ready to take various measures. When we talk about the speed of a website, most often we mean the speed of its content loading.

Cache 148

Cache Speed Website Network 148

DZone

JUNE 3, 2019

A solution to that problem could be using a cache, but how do you implement it? In that article, I explain how to use a basic cache in Spring Boot. We would have a slow application because it is reading continuously data that hardly changes.

Cache 100

Cache Database Network Java 100

DZone

MAY 6, 2019

Caching is key for the performance of nearly every application. Distributed caching is sometimes needed, but not always. In many cases, a local cache would work just fine, and there’s no need for the overhead and complexity of the distributed cache.

Cache 100

Cache Performance 100

The Netflix TechBlog

NOVEMBER 9, 2022

We also see much higher L1 cache activity combined with 4x higher count of MACHINE_CLEARS. a usage pattern occurring when 2 cores reading from / writing to unrelated variables that happen to share the same L1 cache line. Cache line is a concept similar to memory page?—? Thread 0’s cache in this example.

Hardware 363

Hardware Cache Performance Latency 363

Scalegrid

NOVEMBER 26, 2020

Redis is a great caching solution for highly demanding applications, and there are […]. In fact, it is the number one key value store and eighth most popular database in the world. It has high throughput and runs from memory, but also has the ability to persist data on disk.

Cache 130

Cache Azure Benchmarking Performance 130

Scalegrid

AUGUST 16, 2021

Guest post by Ben Hagan from PolyScale.ai Data-driven applications span a wide breadth of complexity, from simple microservices to real-time event-driven systems under significant load. However, as any development and/or DevOps team tasked with performance improvements will attest, making data-driven apps fast globally is “non-trivial”.

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Cache DevOps Architecture Performance 277

DZone

AUGUST 4, 2022

The host offered browser caching advantages, better stability, and storage on fast edge servers across strategic geolocations. The idea has been that a CDN has fast edge servers that cache content and deliver it based on the user’s geolocation. Not only did it have performance benefits, but it was also convenient for developers.

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Cache Servers Tuning Storage 304

KeyCDN

JUNE 6, 2019

We’re happy to announce that WebP Caching has landed! How Does WebP Caching Work? Enable the Feature for your Zones Cache Key WebP can be enabled for all Pull Zones. Once enabled, a Zone will cache each image separately as WebP and the other image format (e.g. Optimus offers an efficient way to generate WebP images.

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Cache Servers Processing Website 84

ScaleOut Software

APRIL 22, 2020

The Solution: Distributed Caching. A widely used technology called distributed caching meets this need by storing frequently accessed data in memory on a server farm instead of within a database. It’s not enough simply to lash together a set of servers hosting a collection of in-memory caches.

Cache 52

Cache Servers Database Storage 52

The Polyglot Developer

SEPTEMBER 9, 2019

Recently I’ve been playing around with Netlify and as a result I’m becoming more familiar with caching strategies commonly found with content delivery networks (CDN). The resource is cached within the browser along with the ETag value and that value is used when determining if the particular cached resource has changed remotely.

Cache 69

Cache Testing Strategy Network 69

ScaleOut Software

APRIL 22, 2020

The Solution: Distributed Caching. A widely used technology called distributed caching meets this need by storing frequently accessed data in memory on a server farm instead of within a database. It’s not enough simply to lash together a set of servers hosting a collection of in-memory caches.

Cache 52

Cache Servers Database Storage 52

DZone

MARCH 16, 2020

This article compares different options for the in-memory maps and their performances in order for an application to move away from traditional RDBMS tables for frequently accessed data.

Cache 135

Cache Java Performance Database 135

The Polyglot Developer

SEPTEMBER 15, 2021

To make things better, we’re going to see how to cache this data to prevent making too many requests to an API that has a finite allocation. The post Download and Cache YouTube Data in an Eleventy Website with Simple JavaScript appeared first on The Polyglot Developer.

Cache 59

Cache Website Development 59

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.

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Cache Open Source Google Systems 199

DZone

JULY 8, 2020

It's cargo-cult fighting time! Today, we are going to look at a ban expression that you probably have used, and maybe even have recommended (gasp!) to your fellow Varnish users: req.url ~ /.

Cache 146

Cache Performance 146

DZone

FEBRUARY 22, 2023

Memoization is the process of caching the results of a function call based on its input parameters. The useMemo() hook is a built-in React hook that allows you to optimize the performance of your React application by memoizing expensive computations.

Cache 232

Cache Efficiency Performance Processing 232

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.

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Cache Design Systems Code 145

Uber Engineering

MAY 24, 2023

This blog post unveils the seamless, exabyte-scale integration of local SSD disks into the Hadoop Distributed File System (HDFS), enabling the utilization of high-density disk SKUs to optimize disk IO and achieving exceptional performance.

Cache 52

Cache Performance Systems 52

cdemi

MAY 8, 2016

Applications that rely heavily on a data-store usually can benefit greatly from using the Cache-Aside Pattern. If used correctly, this pattern can improve performance and help maintain consistency between the cache and the underlying data store. If the item exists in the cache, you can use that. Lifetime of Cached Data.

Cache 54

Cache Design C++ Performance 54

DZone

APRIL 9, 2020

Insufficient dispatcher caching. Lack of browser caching. High CPU utilization. Expensive requests such as expensive searches or inefficient application code, components, etc. Lack of proper maintenance. Lack of CDN. Too many scripts loaded on-page and loaded at top of the page. Insufficient server sizing or incorrect architecture.

Website Performance 264

Website Performance Performance Website Cache 264

The Morning Paper

MAY 23, 2019

Compress objects, not cache lines: an object-based compressed memory hierarchy Tsai & Sanchez, ASPLOS’19. Existing cache and main memory compression techniques compress data in small fixed-size blocks, typically cache lines. ” The big idea. What about arrays? We want Zippads to compress both well.

Cache 61

Cache Java Hardware Benchmarking 61

Percona

APRIL 7, 2023

But since retrieving data from disk is slow, databases tend to work with a caching mechanism to keep as much hot data, the bits and pieces that are most often accessed, in memory. In MySQL, considering the standard storage engine, InnoDB , the data cache is called Buffer Pool. In PostgreSQL, it is called shared buffers.

Cache 134

Cache Servers Tuning Database 134

Percona

APRIL 6, 2023

Query caching Pgpool-II can cache frequently used queries in memory, reducing the load on your PostgreSQL servers and improving response times. This means that when a query is executed, pgpool-II can check the cache first to see if the results are already available rather than sending the query to the database server.

Cache 113

Cache Servers Database Open Source 113

The Netflix TechBlog

APRIL 27, 2023

Moreover, common database optimizations like caching recently queried data don’t really work for alerting queries because, generally speaking, the last received datapoint is required for correctness. It became clear to us that we needed to solve the scalability problem with a fundamentally different approach.

Cache 253

Cache Metrics Database Storage 253

Dynatrace

JANUARY 16, 2023

Of the organizations in the Kubernetes survey, 71% run databases and caches in Kubernetes, representing a +48% year-over-year increase. Together with messaging systems (+36% growth), organizations are increasingly using databases and caches to persist application workload states.

Java 343

Java Open Source Cache Database 343

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.

Cache 125

Cache Tuning Storage Database 125

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 102

Cache Servers Database Testing 102

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. This avoids thrashing caches too much for B and evens out the pressure on the L3 caches of the machine.

Cache 256

Cache Latency Performance Hardware 256

Smashing Magazine

SEPTEMBER 28, 2022

Active Memory Caching. When you want to get data that you already had quickly, you need to do caching — caching stores data that a user recently retrieved. Caching partially stores your data and is not used as permanent storage. Caching partially stores your data and is not used as permanent storage.

Cache 112

Cache Performance Servers Architecture 112

CSS - Tricks

APRIL 28, 2022

While CloudFront’s edge caching does offer benefits, serving your app’s resources from these multiple locations is not without a cost of its own. We’ll be changing DNS records and, depending on your web app, you may have to add some cache headers in order to prevent certain assets from ever being cached. Setting up our DNS.

Cache 79

Cache Servers AWS Testing 79

Percona

MAY 10, 2023

Let’s start by running a little experiment – generating heavy I/O usage on the system: sysbench --threads=8 --time=0 --max-requests=0 fileio --file-num=1 --file-total-size=10G --file-io-mode=sync --file-extra-flags=direct --file-test-mode=rndrd run CPU Usage in Percona Monitoring and Management (PMM): root@iotest:~# vmstat 10 procs --memory (..)

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Cache Monitoring Database Systems 142