Brendan Gregg

SEPTEMBER 5, 2021

I summarized this case study at Kernel Recipes in 2017; it is an old story that's worth resharing here. I have been surprised many times by unexpected performance issues, so I thought I should check their instances anyway. The ZFS Adapative Replacement Cache (ARC) is the main memory cache for the file system.

Cache 52

Cache Cloud Java Tuning 52

Alex Russell

JUNE 19, 2020

Moving this site to Eleventy and Netlify has been a great way to improve the performance of the deployed end-product, which was reason enough to make the switch. Investigating this turned into a fun little project that has helped me learn loads about 11ty and has reacquainted me Node's performance tools. [1]. So can we go faster?

Cache 49

Cache Hardware Speed Cloud 49

Brendan Gregg

SEPTEMBER 5, 2021

I summarized this case study at [Kernel Recipes] in 2017; it is an old story that's worth resharing here. ## 1. I have been surprised many times by unexpected performance issues, so I thought I should check their instances anyway. The ZFS Adapative Replacement Cache (ARC) is the main memory cache for the file system.

Cache 40

Cache Cloud Java Tuning 40

MachMetrics

DECEMBER 14, 2019

With another year winding down, it’s time for us to take stock of how our site performance compares to the average page load times for 2020. As you know, there are many metrics that determine a website’s page speed, and we can’t look at just one of them to determine how performant our site is. seconds on mobile.

Best Practices 105

Best Practices Speed Mobile Google 105

KeyCDN

JANUARY 31, 2019

As for Romania, it covers an area of over 238,000 square kilometers and as of 2017 had a population of almost 20 million. In 2017, the average speed was 21.33Mb/s ranking them 18th in the world. As of 2016, Bucharest alone had a population of over 1.83 million people. million Romanian eCommerce users who spend an average of $237.38

Internet 48

Internet Internet Ecommerce Speed 48

SQL Performance

SEPTEMBER 17, 2019

For years SSRS was bundled with the installation of SQL Server, which helped add to some of the confusion around licensing and support for the product, so beginning with SSRS 2017, the installation package for Reporting Services is a separate download. Disk latency for ReportServer and ReportServerTempDB are very important. General Tuning.

Tuning 67

Tuning Servers Database Best Practices 67

Percona

JUNE 4, 2023

This blog post was originally published in November 2017 and was updated in June 2023. Advantages: MariaDB is a highly advantageous option for a wide range of applications and organizations, offering numerous benefits that set it apart from other RDBMS: A significant advantages of MariaDB is its performance. Contact us to learn more!

Open Source 52

Open Source Servers Storage Scalability 52

KeyCDN

OCTOBER 24, 2018

According to Wikipedia , the average connection speed in Q1 of 2017 was 20.5Mbps. If you are experiencing any issues with the new POP in Helsinki, check our status page to verify if we are performing any scheduled maintenance or open a support request with us directly. This is a massive increase from year 2000 when only 37.2%

Internet 48

Internet Internet Speed Network 48

ACM Sigarch

FEBRUARY 23, 2018

Richard Thaler won the 2017 Nobel prize in Economics for his work on Behavioral Economics. Architects were always aware of the impact speculative execution has on the performance of microarchitectural structures from branch predictors to caches. However, we did not adequately consider speculative execution’s impact on security.

Architecture 47

Architecture Cache Hardware Virtualization 47

SQL Server According to Bob

DECEMBER 18, 2018

This means data can be stored in file system cache, non-stable media. ) The issue, as described in the link, is that the sync returns the error but may clear the state of the cached pages. The next sync returns ESUCCESS, meaning the the write(s), which were in cache, do not flush to stable media but applications were told they did.

Servers 40

Servers Media Cache Software Engineering 40

SQL Performance

JUNE 5, 2019

Some queries need more memory than others to execute, based on what operations need to be performed (e.g. Subsequent executions have the same plan (as that’s what was cached) and the same memory grant, but we get a clue it’s not enough because there’s a sort warning. sort, hash).

Servers 41

Servers Cache Database Metrics 41

SQL Server According to Bob

DECEMBER 18, 2018

Durability is a cornerstone of any database system and starting with SQL Server 2017 on Linux Cumulative Update 6 (CU6), SQL Server on Linux enables “Forced Flush” behavior as described in this article , improving durability on non-Fua optimized systems. “Be Val and Dylan performing power outage durability testing and adding new tests.

Servers 90

Servers Media Cache Storage 90

Alex Russell

DECEMBER 18, 2022

2023 Content Targets Desktop Devices Networks Mobile Devices Networks Developing Your Own Targets The Performance Inequality Gap is Growing. Last month, I had the honour of joining what seemed like the entire web performance community at performance.now() in Amsterdam. This is an ethical crisis for the frontend. 2023 Content Targets #.

Performance 113

Performance Network Mobile Latency 113

Alex Russell

MARCH 6, 2021

TL;DR: A lot has changed since 2017 when we last estimated a global baseline resource per-page resource budget of 130-170KiB. 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.

Performance 124

Performance Network Cache Metrics 124

The Netflix TechBlog

JULY 1, 2019

Development As part of developing this type of UI experience on any platform, we knew we would need to think about creating smooth, performant animations with a balance between quality and download size for the images and video previews, all without degrading the performance of the app. images no longer in the viewport).

Cache 166

Cache Design Testing Development 166

CSS - Tricks

APRIL 1, 2021

Site performance is potentially the most important metric. The better the performance, the better chance that users stay on a page, read content, make purchases, or just about whatever they need to do. Here’s the thing: performance is more than a one-off task. billion if the site slowed down by just one second. Lighthouse.

Cache 92

Cache Social Media Media Website 92

MachMetrics

JUNE 30, 2021

Website performance & speed plays a major role in the success of an online business. High-performing fast sites attract and preserve users better than low-performing ones. The screenshot below explains that page load time and lighthouse performance scores are not the same, yet they are really close to each other.

Cache 78

Cache Speed Google Website 78

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” If you’re interested in attending, please check out the links, and I look forward to meeting and re-meeting many of you there.

Latency 51

Latency C++ Hardware Performance 51

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. Performant – The service would need to be able to maintain consistent performance in the face of diverse customer workloads.

Internet 130

Internet Internet AWS Performance 130

Percona

JANUARY 17, 2019

In this article, we will look at how this can improve the reporting/analytical query performance in MySQL. Aurora Parallel Query response time (for queries which can not use indexes) can be 5x-10x better compared to the non-parallel fully cached operations. The second and third run used the cached data. MySQL on ec2.

Cache 46

Cache C++ AWS Airlines 46

Smashing Magazine

JULY 29, 2019

MB , that suggests I’ve got around 29 pages in my budget, although probably a few more than that if I’m able to stay on the same sites and leverage browser caching. Throughout the experiment I will suggest performance tips to speed up the first contentful paint and perceived loading time of the page. Performance Tip #3: Less Is More.

Cache 96

Cache Google Mobile Network 96

Alex Russell

OCTOBER 22, 2017

TL;DR: performance budgets are an essential but under-appreciated part of product success and team health. — Alex Russell (@slightlylate) October 4, 2017. Performance budgets are set early in the life of the project. Performance budgets keep everyone on the same. Maybe "ambush by JS"?

Performance 68

Performance Benchmarking Network Mobile 68

SQL Server According to Bob

MAY 19, 2019

The reduction effort started when we shipped SQL Server 2017 ( [link].) Partitioning allows SQL Server to scale to the largest systems with record-setting performance. This means the readers use memory local to their CPU, reducing memory invalidations improving performance. ‘ For example, going as far back as SQL Server 7.0

IoT 61

IoT Servers Development Cache 61

Alex Russell

APRIL 29, 2021

Classics of the genre include: Apple's just focused on performance! The Performance Argument. As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. Web Performance APIs.

Media 145

Media Games Education Engineering 145

Smashing Magazine

FEBRUARY 3, 2022

This is clearly not just bad for the environment — it’s bad for performance and hurts our users too. The performance impact is be measured with PageSpeed Insights. These numbers are based on first-page load — caching seems very efficient for subsequent page loads. Description. JS (uncached). Two embeds. Description.

Social Media 101

Social Media Media Website Airlines 101

SQL Performance

NOVEMBER 4, 2021

First introduced in SQL Server 2017 Enterprise Edition, an adaptive join enables a runtime transition from a batch mode hash join to a row mode correlated nested loops indexed join (apply) at runtime. In short, it’s thought row mode hash joins would be too prone to performance regressions. without changing the query plan hash.

Servers 98

Servers Design Database Code 98

SQL Performance

APRIL 8, 2019

Back on December 5, 2017, Microsoft announced that they were using AMD EPYC 7551 processors in their storage-optimized Lv2-Series virtual machines. The L3 cache size is 64MB. The AMD EPYC 7551 processor has slightly lower single-threaded CPU performance when compared to the older 2.3 The L3 cache size is 64MB.

Azure 42

Azure Virtualization Storage Benchmarking 42

SQL Performance

JULY 16, 2019

For many years, I explicitly advised people not to run their SQL Server workloads on AMD hardware because of the much lower single-threaded CPU performance and consequently higher SQL Server core license costs. This has led to a very noticeable reduction in generational performance increases since Broadwell-EP, as shown in Figure 1.

Servers 46

Servers Hardware Architecture Retail 46

Smashing Magazine

JANUARY 21, 2021

How We Improved SmashingMag Performance. How We Improved SmashingMag Performance. Every web performance story is similar, isn’t it? A day when a project, fully polished and carefully optimized, gets launched, ranking high and soaring above performance scores in Lighthouse and WebPageTest. Vitaly Friedman.

Performance 145

Performance Cache Mobile Network 145

SQL Performance

AUGUST 23, 2019

In traditional row-mode execution plans, SQL Server may introduce a Bitmap operator as part of performing early semi join reduction before a parallel hash or merge join. The details given here apply to SQL Server 2017 — the most recently released version at the time of writing. Background. The Query Optimizer. Simple Bitmaps.

Servers 75

Servers Engineering Efficiency Retail 75

Enprowess

JANUARY 12, 2022

So it is convenient for all to use irrespective of internet speed and it works offline using cached data. Twitter Lite PWA : It was integrated as the standard User Interface in 2017. Supports multitasking : voice search technology can simultaneously perform multiple tasks from navigation to setting up meetings and reminders.

Blockchain 59

Blockchain IoT Development Serverless 59

SQL Server According to Bob

DECEMBER 31, 2018

The project uses parallel threads to perform scatter/gather activities as well as tournament sorting to optimize the sorting and merging activities. if (null ! . // Do we need to start the read-ahead to suck data into file system cache if (iCookie > -1) { tReadAhead.Start(iCookie); } }. ”); }. xel”; }.

Efficiency 40

Efficiency Code Servers Cache 40

Smashing Magazine

JANUARY 21, 2019

In conclusion, a schema-based API such as GraphQL and a component-based API such as PoP are similarly good concerning performance, and superior to a resource-based API such as REST. Native Client-Side Cache/Data Store. Recommended reading : Understanding And Using REST APIs. Particular Properties Of A Component-Based API.

Social Media 64

Social Media Database Media Website 64

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