DZone

FEBRUARY 27, 2021

As a Software Engineer, the mind is trained to seek optimizations in every aspect of development and ooze out every bit of available CPU Resource to deliver a performing application. Recently, I spent some time checking on the Performance (not a very detailed study) of the various programming languages.

Java 207

Java C++ Benchmarking Programming 207

Alex Russell

MARCH 6, 2021

Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones. Poor performance has a compound effect on user expectations at an ecosystem level. Live by the link, die by the link.

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

JANUARY 11, 2021

Front-End Performance Checklist 2021. Front-End Performance Checklist 2021. This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. Web performance is a tricky beast, isn’t it?

Performance 145

Performance Cache Media Metrics 145

Dynatrace

NOVEMBER 1, 2022

All these definitions are distinct and important. If one system has an MTTR of 24 hours and another has an MTTR of three days with equal time between failures, the first system is more valuable because its availability is higher. MTTD is a primary key performance indicator for IT and DevOps teams. So, what is MTTR?

DevOps 209

DevOps Artificial Intelligence Metrics Network 209

Dotcom-Montior

NOVEMBER 24, 2021

By definition, a distributed system is any system that comprises of multiple components on variety of machines that work together to appear as a single, organized system. Although the definition may seem straightforward, in the real-world, a distributed system is one of the most complex environments to understand, manage, and monitor.

Systems 74

Systems Monitoring Hardware Network 74

CSS - Tricks

AUGUST 18, 2020

Yet, this criticism of React isn’t completely unwarranted: React and ReactDOM total about 120 KiB of minified JavaScript, which definitely contributes to slow startup time. When even a bit of React can be a problem on devices slow and fast alike, using it is an intentional choice that effectively excludes people with low-end hardware.

Performance 101

Performance Mobile Servers Code 101

ACM Sigarch

OCTOBER 25, 2019

When it comes to hardware support to mitigate software security issues, there is a significant gap between what is available in products today and known solutions. Acceleration—Adding hardware support to reduce the runtime overheads of security features. The data in the above definition could also include instructions.

Hardware 98

Hardware Virtualization Architecture Games 98

Percona

DECEMBER 14, 2022

INSERT performance is not a priority. CAVEAT: You cannot perform UPDATE, DELETE operations on a columnar table. The key goals of OLTP applications are availability, speed, concurrency, and recoverability. But while eminently capable of performing OLAP, it’s not quite as efficient. Indexes are not feasible . OLTP vs OLAP.

Database 92

Database Analytics Storage Processing 92

Testlodge

MARCH 21, 2023

To understand better, let’s dive a little deeper into each definition. They are not concerned with how the system works, only that it performs as expected according to the requirements. The first tester will be responsible for testing the kiosk hardware and UI and performing exploratory testing.

Testing 67

Testing Architecture Hardware Code 67

ACM Sigarch

JULY 17, 2023

An example of a specification is the correct operation of the hardware of a microprocessor. An SDC is the worst possible outcome of a fault, as it can have an arbitrary impact on the correctness of software running on the hardware. Therefore, testing alone is unlikely to be the definitive solution to address these new faults.

Energy 52

Energy Hardware Best Practices Architecture 52

SQL Performance

JANUARY 22, 2020

Any rows are then available in a table variable which can then be used in standard T-SQL coding, which eliminates the need to write specialized processing logic for breaking the data down again. Add ( "Date" , typeof ( DateTime ) ) ; You can also create the DataTable using the inline definition as follows: System.

Servers 55

Servers Azure Hardware Network 55

Speed Curve

MARCH 7, 2022

If you've been working in the performance space for a while and you hear me start to talk about page growth, I'd forgive you if you started running away. ;). HTML – Typically the smallest resource on the page, HTML's performance risk is usually negligible. More stylesheets equal more risk of performance degradation.

Mobile 145

Mobile Benchmarking Google Metrics 145

Smashing Magazine

JANUARY 6, 2020

Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 145

Performance Cache Network Metrics 145

SQL Performance

MAY 22, 2019

I’ve copied the query below, and if you’ve never run it against any of your production environments before, definitely find some time to do so. SQL Server solutions are living, breathing entities that are always changing and take continual care and feeding to perform reliably. The PerfMon data, graphed below, is most telling.

Cache 54

Cache Performance Hardware Servers 54

Smashing Magazine

APRIL 19, 2021

LCP is supposed to measure loading performance and is a good proxy for all the old metrics we in the performance community used to use (i.e. Google uses anonymized data from Chrome users to feedback metrics and makes these available in the Chrome User Experience Report (CrUX). Previous Web Performance Metrics.

Google 140

Google Metrics Mobile Analytics 140

Alex Russell

SEPTEMBER 20, 2020

Pre-publication gates were valuable when better answers weren't available, but commentators should update their priors to account for hardware and software progress of the past 13 years. The closer one looks, the less a definition of "appiness" can be pinned down to specific technologies.

Hardware 64

Hardware Mobile Programming Java 64

Testsigma

SEPTEMBER 23, 2021

Cross-browser testing is performed to be sure that your product is working as expected on the various device, platform, and browser (and their versions) combinations that your customers might be using. During upgrade or maintenance, the devices are updated either with software or hardware. Maintenance. This also adds to the downtime.

Cloud 96

Cloud Testing Infrastructure Internet 96

Testsigma

FEBRUARY 3, 2021

Mobiles have different models, screen resolutions, operating systems, network types, hardware configurations, etc. Also, how to test the hardware of the mobile phone itself, is it supporting all the software as it should? Let us have a look at the most popular types of mobile testing for applications and hardware.

Mobile 82

Mobile Testing Hardware C++ 82

The Morning Paper

MAY 21, 2019

We focus on a definition that draws from the following two principles: (1) the value of temporal locality, by classifying as cold a memory page that has not been accessed beyond a threshold of T seconds; (2) a proxy for the application effect of far memory, by measuring the rate of accesses to cold memory pages, called promotion rate.

Software 78

Software Software Google Hardware 78

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 103

Performance Cache Metrics Network 103

Alex Russell

OCTOBER 22, 2017

TL;DR: performance budgets are an essential but under-appreciated part of product success and team health. Nobody is trying to do a poor job, and yet the results of a “completed” PWA project often require weeks or months of painstaking rework to deliver minimally acceptable performance. Partner meetings are illuminating.

Performance 68

Performance Benchmarking Network Mobile 68

Abhishek Tiwari

DECEMBER 27, 2017

overall performance comparable to bare metal. The good news is all of these challenges including performance can be tackled and in several cases, there are new developments to overcome them. The good news is all of these challenges including performance can be tackled and in several cases, there are new developments to overcome them.

Big Data 63

Big Data Storage Benchmarking Hardware 63

Smashing Magazine

OCTOBER 11, 2022

Making performance improvements to a client’s site could result in happier clients who send more business our way. Asim talked about Performance Mode in Microsoft Edge: switching on Performance Mode means users get a faster website, while also saving resources. On design systems, UX, web performance and CSS/JS.

Strategy 123

Strategy Development Energy Website 123

Percona

JANUARY 19, 2023

While the technologies have evolved and matured enough, there are still some people thinking that MySQL is only for small projects or that it can’t perform well with large tables. With disks being faster nowadays and CPU and memory resources being cheaper, we could easily say MySQL can handle TBs of data with good performance.

Open Source 92

Open Source Storage Database Big Data 92

Randon ASCII

OCTOBER 4, 2020

The answer is hardware interrupts. This means that the thread may end up waking up a bit late, but Windows is not a real-time OS and it actually cannot guarantee a specific wakeup time (there may not be a CPU core available at that time anyway) so waking up a bit late should be fine. Implications. Maybe it is a bug, but I doubt it.

Programming 145

Programming Games Hardware Operating System 145

All Things Distributed

SEPTEMBER 4, 2017

As a result, there is a critical mass of data available. That is now changing, as packages of AI and ML services, frameworks and tools are today available to all sorts of companies and organizations, including those that don't have dedicated research groups in this field. Progress through machine learning.

Artificial Intelligence 147

Artificial Intelligence Transportation Education Airlines 147

Dotcom-Montior

DECEMBER 8, 2021

are all prone to performance issues and unexpected outages at some point. By ITIL definition, the service desk may take the form of incident resolution or service requests, but whatever the case, the primary goal of the service desk to provide quick and efficient service. Systems, web applications, servers, devices, etc.,

Social Media 90

Social Media Monitoring Latency DevOps 90

SQL Performance

AUGUST 27, 2019

AMD is definitely pushing the idea that a one-socket AMD Ryzen 7002 based server is a superior replacement for nearly any two-socket Intel-based server. It will also use less power than a two-socket Intel server, with a lower hardware cost, and potentially lower licensing costs (for things like VMware). Single-Socket Database Servers.

Servers 52

Servers Benchmarking Virtualization Architecture 52

Nick Desaulniers

APRIL 6, 2020

halt (); Some sort of very early exception handler; better to sit busy in an infinite loop than run off and destroy hardware or corrupt data, I suppose. Jann Horn gets back to me first: Can you use QEMU to look at the hardware frame (which contains values pushed by the hardware in response to the page fault) in early_idt_handler_common?

C++ 67

C++ Hardware Code Virtualization 67

SQL Server According to Bob

JANUARY 11, 2020

This will help you increase system performance and avoid I/O environment errors. Atomicity A transaction must be an atomic unit of work; either all of its data modifications are performed or none of them are performed. Consistency When completed, a transaction must leave all data in a consistent state.

Servers 40

Servers Cache Media Hardware 40

Percona

AUGUST 29, 2018

For optimum performance, a PostgreSQL database depends on the operating system parameters being defined correctly. Poorly configured OS kernel parameters can cause degradation in database server performance. Be aware of differing definitions. These are the definitions: Linux: kernel.shmmax, kernel.shmall. SHMMAX / SHMALL.

Tuning 58

Tuning Database Servers Processing 58

MachMetrics

JULY 27, 2018

I had always been an advocate for the Windows AMIs – as most of the world runs Windows instead of Linux, I wanted the performance to represent what the majority sees. Here’s 10 pretty typical sites (including Amazon and Bing, not just mom-and-pop sites): Nope, there’s definitely a problem across the board.

Speed 40

Speed Hardware Internet Internet 40

HammerDB

FEBRUARY 25, 2021

On high-performance multi-core systems all the supported databases can return performance in the many millions of transactions per minute. This post explains why HammerDB made the language decisions it made to make it the best performing and most usable database benchmarking software. Basic Benchmarking Concepts. The Python GIL.

Programming 67

Programming Benchmarking Virtualization C++ 67

Alex Russell

FEBRUARY 21, 2023

The intentional, responsible leadership of Blink was no accident, but to see it rewarded so definitively is gratifying. In early 2020, after months of background conversations and research, Mason Freed posted a new set of design alternatives , which included extensive performance research. 31st : Web Share changes Feb. But needs must.

Energy 79

Energy Games Engineering Design 79

Alex Russell

JULY 14, 2021

Engine diversity is essential, as it is the mechanism that causes competition to deliver better performance, capability, privacy, security, and user controls. Hardware access APIs, notably: Geolocation. No documentation is available for third-party web developers from any of the largest WebView IAB (ab)users. Web Bluetooth.

Google 121

Google Mobile Engineering Internet 121

John McCalpin

NOVEMBER 5, 2016

In recent years the trend has been to increase core-level performance by the use of SIMD vector instructions, and to increase package-level performance by the addition of more and more cores. Each of these accumulators must use a different register name, and there are only 16 SIMD register names available.

Cache 40

Cache C++ Latency Hardware 40

O'Reilly Software

APRIL 4, 2018

They have a clear input and output definition, and often a schema as well. But when we run on a cluster of machines, how can we perform the resource management required by this new generation of distributed data-intensive applications? Leverage the convergence of fast data and microservices.

Architecture 80

Architecture Scalability Google Operating System 80