IO River

NOVEMBER 2, 2023

A content delivery network (CDN) is a distributed network of servers strategically located across multiple geographical locations to deliver web content to end users more efficiently. When an edge server goes down, end users in the affected region may experience an increase in latency for that specific location.

Architecture 52

Architecture Cache Performance Latency 52

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

Brendan Gregg

JULY 4, 2021

I summarized these topics and more as a plenary conference talk, including my own predictions (as a senior performance engineer) for the future of computing performance, with a focus on back-end servers. Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Speed Curve

SEPTEMBER 4, 2013

Here's the slides from my presentation at the Auckland Web Dev Nights meetup. Why speed matters, examples of the impact saving a few seconds of load time has had on revenue and engagement. Bandwidth, latency and it's fundamental impact on the speed of the web. The network constraints and what makes the web slow?

Speed 40

Speed Benchmarking Latency Mobile 40

CSS Wizardry

OCTOBER 16, 2023

Concatenating our files on the server: Are we going to send many smaller files, or are we going to send one monolithic file? Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. 4,362ms of cumulative latency; 240ms of cumulative download.

Cache 291

Cache Latency Strategy Speed 291

Scalegrid

DECEMBER 21, 2023

Identifying key Redis® metrics such as latency, CPU usage, and memory metrics is crucial for effective Redis monitoring. To monitor Redis® instances effectively, collect Redis metrics focusing on cache hit ratio, memory allocated, and latency threshold.

Strategy 130

Strategy Monitoring Latency DevOps 130

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. This server is spending about a third of its CPU cycles just checking the time! Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? 30.14% in the middle of the flame graph. in total.

Speed 126

Speed Java AWS Virtualization 126

Smashing Magazine

AUGUST 20, 2021

Jamstack CMS: The Past, The Present and The Future. Jamstack CMS: The Past, The Present and The Future. Yet, for all these technological developments, it’s interesting that many of us are still serving sites in the same way Tim did with the very first website — a web server serving static website files. Mike Neumegen.

Ecommerce 140

Ecommerce Website Government Internet 140

KeyCDN

SEPTEMBER 12, 2019

When it comes to marketing your website, there are a lot of different aspects to consider, such as speed, SEO, conversation rates, bounce rate, and many others. Image CDN Using a content delivery network like KeyCDN, or what we also call an image CDN , can be one of the easiest and fastest ways to speed up the delivery of your images.

Social Media 106

Social Media Media Google Website 106

Smashing Magazine

NOVEMBER 9, 2021

However, then the style will not be present when referencing the image directly (such as the image shared in social media via the <meta property="og:image" content="{image-url}"> tag), making the image devoid of personality. Applying style to the images can be achieved with CSS.

Website 106

Website Social Media Media Design 106

The Morning Paper

SEPTEMBER 8, 2019

We have implemented support for query time sampling in production big-data clusters at Microsoft: these clusters consist of tens of thousands of multi-core, multi-disk servers and are used by developers from many different businesses including Bing, Azure, and Windows. 8 out of the 22 TPC-H queries cannot be advantaged by sampling.

Big Data 57

Big Data Analytics Latency Azure 57

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. This server is spending about a third of its CPU cycles just checking the time! Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? 30.14% in the middle of the flame graph. in total.

Speed 52

Speed Java AWS Virtualization 52

Percona

MARCH 29, 2023

Percona Server for MongoDB (PSMDB) supports all types of compression and enterprise-grade features for free. When this data block is read, it decompresses it in memory and presents it to the incoming request. This can further reduce the amount of data that needs to be transmitted between server and client over the network.

Storage 105

Storage Network Open Source Latency 105

The Netflix TechBlog

NOVEMBER 3, 2022

In the time since it was first presented as an advanced Mesos framework, Titus has transparently evolved from being built on top of Mesos to Kubernetes, handling an ever-increasing volume of containers. This blog post presents how our current iteration of Titus deals with high API call volumes by scaling out horizontally.

Cache 224

Cache Latency Traffic Systems 224

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. This server is spending about a third of its CPU cycles just checking the time! Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? 30.14% in the middle of the flame graph. in total.

Speed 40

Speed Java AWS Virtualization 40

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. A span: Represents a unit of work, such as a network call from one service to another (a client/server relationship) or a purely internal action (e.g., What is Edgar?

Latency 296

Latency Transportation Engineering Traffic 296

CSS - Tricks

NOVEMBER 1, 2019

First, I’d like to present a small analysis to provide some background. TTFB represents the time browser waits to receive first bytes of the response from server. TTFB mobile speed distribution (CrUX, July 2019). FCP mobile speed distribution (CrUX, July 2019). FID mobile speed distribution (CrUX, July 2019).

Speed 46

Speed Mobile Metrics Scalability 46

Scalegrid

JANUARY 12, 2024

While managing cloud workloads offers numerous benefits, it also presents several challenges such as security risks, compliance issues, and resource optimization, which can be addressed effectively with tools like ScaleGrid, offering features like encryption, disaster recovery, and real-time resource optimization for diverse databases.

Cloud 130

Cloud Virtualization Storage Efficiency 130

CSS Wizardry

MARCH 3, 2019

This includes CDNs, proxy servers, and the like. Once the 60 seconds is up, the browser will head back to the server to revalidate the file. This means that, if the Cache-Control: max-age=60 header is still present, the cached file’s 60 seconds starts again. public and private. 120 seconds overall cache time for one file.

Cache 264

Cache Latency Strategy Servers 264

Smashing Magazine

AUGUST 3, 2023

Largest Contentful Paint (LCP) LCP measures the perceived load speed of a webpage from a user’s perspective. Time To First Byte (TTFB) This is the time it takes for the first piece of information from the server to reach the user’s browser. The shorter the TTFB, the better the perceived speed of the site from the user’s perspective.

Performance 74

Performance Cache Traffic Metrics 74

Dynatrace

APRIL 6, 2022

Endpoints include on-premises servers, Kubernetes infrastructure, cloud-hosted infrastructure and services, and open-source technologies. Observability can identify the baseline user experience and allow teams to improve it by optimizing page load times or reducing latency. Why full-stack observability matters.

DevOps 226

DevOps Innovation Infrastructure Analytics 226

The Netflix TechBlog

MARCH 13, 2020

Compared to the most recent master version of libaom (AV1 reference software), SVT-AV1 is similar in compression efficiency and at the same time achieves significantly lower encoding latency on multi-core platforms when using its inherent parallelization capabilities. The testing has been performed on Windows, Linux, and macOS platforms.

Open Source 154

Open Source Efficiency C++ Speed 154

Dotcom-Montior

MAY 12, 2020

Websites are now more than just the storage and retrieval of information to present content to users. Early web applications involved less on client-side behavior and more server-side for all its navigation, query handling, and updates. No response from the server within the determined timeout. Connection closed by the server.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

SQL Server According to Bob

JANUARY 11, 2020

Copyright The information ​​ that is contained ​​ in this document represents the current view of Microsoft Corporation on the issues discussed as of the date of publication. This White Paper is for informational purposes only.

Servers 40

Servers Cache Database Media 40

Smashing Magazine

AUGUST 22, 2021

A Primer on Speed. Discussing performance and “speed” can quickly get complex, because many underlying aspects contribute to a web-page loading “slowly”. Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Congestion Control.

Performance 106

Performance Network Latency Servers 106

SQL Server According to Bob

JANUARY 11, 2020

Microsoft SQL Server I/O Basics Author: ​​ Bob Dorr, Microsoft SQL Server Escalation Published: ​​ December, 2004 SUMMARY: ​​ Learn the I/O requirements for Microsoft SQL Server database file operations. This will help you increase system performance and avoid I/O environment errors.

Servers 40

Servers Cache Media Hardware 40

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Abhishek Tiwari

NOVEMBER 3, 2018

When it comes to innovation, most of CMS solutions are constrained by their legacy architecture (read strong coupling between content management and content presentation) which makes it difficult to serve content to new types of emerging channels such as apps and devices. i.e. everything you need to render your site.

Systems 63

Systems Cache Website Network 63

Dotcom-Montior

MARCH 6, 2022

Load Time Details For Individual Elements : In the waterfall chart, when the user moves their cursor on a specific bar, he is shown a load time details which are DnsTime, ConnectTime, SSLTime, RequestTime, FirstByteTime, ResponseTime, StartTime, EndTime, Speed which is pointed in a red oval. Some of the phases are presented below: Receiving.

Performance 52

Performance Cache Website Speed 52

Dotcom-Montior

MAY 6, 2020

Load Time Details For Individual Elements : In the waterfall chart, when the user move his cursor on a specific bar, he is shown a load time details which are DnsTime, ConnectTime, SSLTime, RequestTime, FirstByteTime, ResponseTime, StartTime, EndTime, Speed which is pointed in a red oval. Some of the phrases are presented below: Receiving.

Performance 53

Performance Cache Website Speed 53

Alex Russell

MARCH 6, 2021

This 2GiB RAM, Android 9 stalwart features the all-too classic lines of a Quad-core A53 (1.4GHz, small mercies) CPU, tastefully presented in a charming 5.5" Recall that single-core performance most directly translates into speed on the web. So what did $150USD fetch in 2019? Say hello to the Moto E6 ! " package. How bad is it?

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

MAY 20, 2020

This metric shows how much time it takes for the server to respond with something. This metric is important, but quite vague because it can include anything — starting from server rendering time and ending up with latency problems. For the site, I would consider Time To First Byte (TTFB) as a metric.

Performance 99

Performance Metrics Best Practices Code 99

Alex Russell

SEPTEMBER 11, 2018

If performance is a problem, we can do progressive enhancement through Server-Side Rendering. I can count on one hand the number of teams I’ve worked with who have goals that allow them to block launches for latency regressions, including Google products. Because we can iterate faster we’re delivering better experiences.

Development 65

Development Government Mobile Network 65

HammerDB

OCTOBER 12, 2018

Historically MySQL has been positioned for supporting web-based applications this is in contrast to enterprise based database workloads that have been served by commercial databases such as Oracle, Db2 and SQL Server. For this reason sysbench presents a vastly more simplified workload than HammerDB. . current CPU frequency: 1.99

Best Practices 40

Best Practices Scalability Performance C++ 40

The Morning Paper

SEPTEMBER 12, 2019

An induced pipeline breaker is one that would not have been present in an optimal physical plan but was forced by the cut. Beyond that, the RDBMS wins: For the Word2Vec and LDA computations the speed-ups as the number of dimensions/topics grows are very significant (e.g minutes vs almost 5hrs for LDA with 50,000 topics).

Network 44

Network Database Programming Hardware 44

Alex Russell

JUNE 20, 2020

Absent compelling content and attentive security and performance focus, it soon retreated to the server. [6]. Each of these moments is experienced stochastically in our model, with the final moment presenting a previously un-hedged risk. talking to POP and IMAP servers. microphones. temperature. accelerometer. ambient light.

Hardware 55

Hardware Games Java Media 55