Speed Curve

FEBRUARY 5, 2024

Caching the base page/HTML is common, and it should have a positive impact on backend times. Key things to understand from your CDN Cache Hit/Cache Miss – Was the resource served from the edge, or did the request have to go to origin? Latency – How much time does it take to deliver a packet from A to B.

Servers 57

Servers Cache Retail Benchmarking 57

ACM Sigarch

MAY 31, 2023

This article lays out the ideas and discussions shared at the workshop. There are three common mechanisms to access remote memory: modifying applications, modifying virtual memory, and hardware-level cache coherence support. even lowered the latency by introducing a multi-headed device that collapses switches and memory controllers.

Latency 52

Latency Hardware Cache Architecture 52

Brendan Gregg

AUGUST 29, 2021

Reads usually have apps waiting on them; writes may not (write-back caching). biolatency From [bcc], this eBPF tool shows a latency histogram of disk I/O. total used free shared buff/cache available Mem: 64414 15421 349 5 48643 48409 Swap: 0 0 0. This is a 64-Gbyte memory system, and 48 Gbytes is in the page cache.

Cache 105

Cache C++ AWS Latency 105

Smashing Magazine

MAY 16, 2022

For this article, that’s all we’ll need to start exposing the value and leave other more specific articles to go deeper. There are a handful of different entry subtypes but, for the scope of this article, we will be concerned with the PerformanceResourceTiming and PerformanceNavigationTiming subtypes. More after jump!

Servers 92

Servers Monitoring Cache Network 92

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. In that spirit, what we’re looking at in this article is focused more on the incremental wins and less on providing an exhaustive list or checklist of performance strategies. Compressing, minifying and caching assets. Again, every millisecond counts. Lighthouse.

Cache 92

Cache Social Media Media Website 92

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. Oddly enough we encountered this error to a third party website while writing this article.

Cache 134

Cache Website Internet Internet 134

Smashing Magazine

AUGUST 3, 2023

While dynamic serving provides simplicity in implementation, it imposes significant time costs due to the computational resources required to generate the pages and the latency involved in serving these pages to users at distant locations. The shorter the TTFB, the better the perceived speed of the site from the user’s perspective.

Performance 74

Performance Cache Traffic Metrics 74

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. Largest Contentful Paint ( LCP ) < 2.5 considerations.

Performance 145

Performance Cache Media Metrics 145

Percona

SEPTEMBER 1, 2023

This results in expedited query execution, reduced resource utilization, and more efficient exploitation of the available hardware resources. This reduction in latency ensures that applications and websites provide a more rapid and responsive user experience. Another highly beneficial caching method is key-value caching.

Tuning 52

Tuning Database Performance Hardware 52

Smashing Magazine

OCTOBER 31, 2023

Answering Common Questions About Interpreting Page Speed Reports Answering Common Questions About Interpreting Page Speed Reports Geoff Graham 2023-10-31T16:00:00+00:00 2023-10-31T17:06:18+00:00 This article is sponsored by DebugBear Running a performance check on your site isn’t too terribly difficult. That’s what this article is about.

Speed 97

Speed Google Website Metrics 97

SQL Performance

APRIL 27, 2020

Hyperscale achieves high performance from each compute node having SSD-based caches which helps minimize the network round trips to fetch data. There is a lot of awesome technology involved with Hyperscale in how it is architected to use SSD-based caches and page servers. Serverless Database. Conclusion.

Azure 55

Azure Database Serverless Hardware 55

Brendan Gregg

AUGUST 18, 2019

Originally posted at https:/opensource.com/article/19/8/introduction-bpftrace. For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. This example instrumented one of many thousands of available events. Block I/O latency as a histogram.

Latency 68

Latency C++ Cache Programming 68

Percona

JULY 17, 2023

First, some stage-setting for this blog article. MongoDB replica sets enable data redundancy and automatic failover, setting the stage (there’s that term again) for high availability. For starters, MongoDB Community lacks the advanced security features available in MongoDB Enterprise. It ranks No.

Open Source 79

Open Source Database Scalability Software 79

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. Large preview ). Getting started with Webpack can be tough though.

Performance 145

Performance Cache Network Metrics 145

Brendan Gregg

AUGUST 29, 2021

Reads usually have apps waiting on them; writes may not (write-back caching). biolatency From [bcc], this eBPF tool shows a latency histogram of disk I/O. This is a 64-Gbyte memory system, and 48 Gbytes is in the page cache (the file system cache). This shows many cache misses, with a hit ratio varying between 6.5

Cache 40

Cache C++ AWS Systems 40

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. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms.

Performance 103

Performance Cache Metrics Network 103

Percona

APRIL 17, 2023

Note that the intent of tuning the settings is not exclusively about improving performance but also enhancing the high availability and resilience of the MongoDB database. There is an issue with this, which causes the OS to swap even with memory available. The CFQ works well for many general use cases but lacks latency guarantees.

Best Practices 52

Best Practices Design Tuning Database 52

Dotcom-Montior

MARCH 6, 2022

To boost the bandwidth availability, the user should keep the images on a cloud server. Moreover, caching utility may decrease the waiting time. Empty Cache (First View): The user access the website for the first time and has no cached data. One of the important things to realize is that the empty cache takes 6.8

Performance 52

Performance Cache Website Speed 52

Highly Scalable

SEPTEMBER 18, 2012

In this article I’m trying to provide more or less systematic description of techniques related to distributed operations in NoSQL databases. In the rest of this article we study a number of distributed activities like replication of failure detection that could happen in a database. Read/Write latency. Data Placement.

Database 213

Database Latency C++ Scalability 213

SQL Performance

APRIL 8, 2019

These VMs are not available in all regions, so you will want to check the availability in the Azure region that you are interested in using. These AMD EPYC processors have a number of advantages for SQL Server workloads, as I will explain in this article. The L3 cache size is 64MB. The L3 cache size is 64MB.

Azure 42

Azure Virtualization Storage Benchmarking 42

IO River

NOVEMBER 2, 2023

CloudFront makes a simple choice here as it offers direct integration with all these services to let you cache responses across its global edge locations. For example, consider the scenario we looked at toward the start of the article. Specialized featuresSome vendors offer specialized features that are not available in competing CDNs.

Lambda 52

Lambda AWS Cache Website 52

The Morning Paper

JANUARY 23, 2020

1:18pm a key observation was made that an API call to populate the homepage sidebar saw a huge jump in latency. The shop had been closed so no data was available. 1:36pm it was discovered that this shop was linked to from the Etsy blog post, via an article posted by the Etsy employee that owned the shop.

Internet 53

Internet Internet Cache Engineering 53

Dotcom-Montior

MAY 6, 2020

To boost the bandwidth availability, the user should keep the images on a cloud server. Moreover, caching utility may decrease the waiting time. Empty Cache (First View): The user access the website for the first time and has no cached data. One of the important things to realize is that the empty cache takes 6.8

Performance 53

Performance Cache Website Speed 53

SQL Performance

SEPTEMBER 17, 2019

This article will cover many areas that database administrators need to be aware of in order to properly license, recover, and tune a Reporting Services installation. Disk latency for ReportServer and ReportServerTempDB are very important. These topics apply to both SQL Server Reporting Services as well as Power BI Report Server.

Tuning 67

Tuning Servers Database Best Practices 67

CSS - Tricks

MAY 3, 2021

Anything WebPageTest can do is available in the API. So you can be like: I’d like to know my Time to Interactive (TTI), Core Web Vitals (CWV), and Total Size of Images from my primary product page along with a loading film strip from a Firefox browser in Canada. And you’ll get exactly that from the API. And so much more.

Transportation 86

Transportation Cache Google Mobile 86

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. Modern network performance and availability. The fastest Androids predictably remain 18-24 months behind, owing to cheapskate choices about cache sizing by Qualcomm, Samsung Semi, and all the rest.

Performance 124

Performance Network Cache Metrics 124

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. The main reason is because it decreases the latency to the user where they are located by serving your images from a POP physically closest to them. KB (30%) without losses.

Social Media 106

Social Media Media Google Website 106

IO River

NOVEMBER 2, 2023

CloudFront makes a simple choice here as it offers direct integration with all these services to let you cache responses across its global edge locations. But since they don't rely much on dynamic content, but rely more upon static content that can be cached at the edge. For example, not all CDN provide Edge compute capabilities.If

Lambda 52

Lambda AWS Cache Website 52

Percona

MAY 15, 2023

One example could be using an RDBMS for most of the Online transaction processing ( OLTP) data shared by country and having the products as distributed memory cache with a different technology. Let’s see the write operations with 24 and 64 threads: We get a gain of ~33% just using sharding, while for latency, we do not have a cost.

Traffic 127

Traffic Scalability Database Servers 127

SQL Server According to Bob

JANUARY 11, 2020

Important When planning, deploying, and maintaining a Microsoft SQL Server installation, ensure that the I/O system supports all the factors outlined in this article. Stable media is commonly physical disk storage, but other devices and certain caching facilities qualify as well.

Servers 40

Servers Cache Media Hardware 40

Alex Russell

OCTOBER 22, 2017

If our example document wasn’t reliant on JavaScript to construct the <my-app> custom element, the contents of the document would likely be interactive as soon as enough CSS and content was available to render meaningfully. Any DOM or UI created in JS is not available for use until the script runs. 400Kbps transfer.

Performance 68

Performance Benchmarking Network Mobile 68

SQL Server According to Bob

JANUARY 11, 2020

Time of Last Access The time of last access is a caching ​​ algorithm ​​ that enables ​​ cache ​​ entries to be ordered by their ​​ access times.

Servers 40

Servers Cache Database Media 40

The Netflix TechBlog

MARCH 7, 2023

But we cannot search or present low latency retrievals from files Etc. We refer the reader to our previous blog article for details. Marken Architecture Our goal was to help teams at Netflix to create data pipelines without thinking about how that data is available to the readers or the client teams. Write algo runs into files.

Media 264

Media Latency Architecture Database 264

Highly Scalable

AUGUST 20, 2013

This article is an effort to explore techniques used by developers of in-stream data processing systems, trace the connections of these techniques to massive batch processing and OLTP/OLAP databases, and discuss how one unified query engine can support in-stream, batch, and OLAP processing at the same time. Interoperability with Hadoop.

Big Data 154

Big Data Processing Lambda Database 154

The Netflix TechBlog

JULY 21, 2022

Problem Statement The purpose of this article is to give insights into analyzing and predicting “out of memory” or OOM kills on the Netflix App. More importantly, the low resource availability or “out of memory” scenario is one of the common reasons for crashes/kills. Labeling the data?—?Ground of the time (False Positives).

Big Data 179

Big Data Cache Engineering Data Engineering 179

Smashing Magazine

AUGUST 20, 2021

Now there’s a massive range of Jamstack CMSs available, which bring all the advantages of static sites while allowing non-technical folk to update content. ’ Before MovableType, other personal blogging platforms were available such as Geocities , Blogger & Open Diary. We can see all the bones of modern Jamstack CMSs here.

Ecommerce 139

Ecommerce Website Government Internet 139

Smashing Magazine

AUGUST 22, 2021

HTTP/3 performance features ( current article ). Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server).

Performance 105

Performance Network Latency Servers 105