Daniel Lemire
FEBRUARY 8, 2019
Not all instructions on modern processors cost the same. Additions and subtractions are cheaper than multiplications which are themselves cheaper than divisions. For this reason, compilers frequently replace division instructions by multiplications. Roughly speaking, it works in this manner. Suppose that you want to divide a variable n by a constant d.
The Netflix TechBlog
FEBRUARY 20, 2019
by Jason Koch , with Martin Spier , Brendan Gregg , Ed Hunter Improving the tools available to our engineers to help them diagnose, triage, and work through software performance challenges in the cloud is a key goal for the cloud performance engineering team at Netflix. Today we are excited to announce latency heatmaps and improved container support for our on-host monitoring solution?
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High Scalability
FEBRUARY 19, 2019
Redis Cluster is the native sharding implementation available within Redis that allows you to automatically distribute your data across multiple nodes without having to rely on external tools and utilities. At ScaleGrid, we recently added support for Redis Clusters on our platform through our fully managed Redis hosting plans. In this post, we’re going to introduce you to the advanced Redis Cluster sharding opportunities, discuss its advantages and limitations, when you should deploy, and
Scalegrid
FEBRUARY 11, 2019
Want to deploy WordPress 5.0 on the Now platform by ZEIT ? Our friends over at ZEIT’s Now global serverless deployment platform whipped up a great tutorial for WordPress5-on-Now using cheap MySQL hosting instances from ScaleGrid. With such strong interest in this installation, we decided to write up the steps to configure your MySQL database on the ScaleGrid side to get you up and running ever faster with WordPress on Now.
Jos
FEBRUARY 1, 2019
Poor performance leads to exclusion. When we create heavy sites we limit what users can access our content. Those with more powerful devices and better network will get sites loaded faster. Those with older devices and slower network will need to wait more. Why performance is important Study after study shows how slowing sites down results in less engagement, less time on the site and a general decrease in key business metrics.
Addy Osmani
FEBRUARY 18, 2019
How browsers schedule and execute scripts can impact the performance of web pages. While techniques like , (and others) influence script loading, knowing how browsers interpret them can also be helpful. Thanks to Kouhei Ueno , we now have an up to date summary of script scheduling in Chrome.
Daniel Lemire
FEBRUARY 19, 2019
In software, compilers can often optimize away integer divisions, and replace them with cheaper instructions, especially when the divisor is a constant. I recently wrote about some work on faster remainders when the divisor is a constant. I reported that it can be fruitful to compute the remainder directly, instead of first computing the quotient (as compilers are doing when the divisor is a constant).
Technology Performance Pulse brings together the best content for technology performance professionals from the widest variety of industry thought leaders.
High Scalability
FEBRUARY 25, 2019
This is a guest post by Benjamin Manes , who did engineery things for Google and is now doing engineery things as CTO of Vector. The previous article described the caching algorithms used by Caffeine , in particular the eviction and concurrency models. Since then we’ve made improvements to the eviction algorithm and explored a new approach towards expiration.
Scalegrid
FEBRUARY 7, 2019
Redis Cluster is the native sharding implementation available within Redis that allows you to automatically distribute your data across multiple nodes without having to rely on external tools and utilities. At ScaleGrid, we recently added support for Redis Clusters on our platform through our fully managed Redis hosting plans. In this post, we’re going to introduce you to the advanced Redis Cluster sharding opportunities, discuss its advantages and limitations, when you should deploy, and
O'Reilly Software
FEBRUARY 5, 2019
Watch highlights from expert talks covering cloud-native programming, software architecture career advice, and more. People from across the software architecture world are coming together in New York for the O'Reilly Software Architecture Conference. Below you'll find links to highlights from the event. Architecting IT transformation. Gregor Hohpe explains how software architects can use what they know about technical systems to help refactor organizations.
KeyCDN
FEBRUARY 27, 2019
HTTP Preload and HTTP/2’s feature “Server Push” are both methods that can be used to improve the loading efficiency of your web application. Although there are similarities between Push and Preload, they are two distinct features and each serve their own purpose. In this article, we’ll go over the similarities and differences between HTTP Preload vs HTTP/2 Push and discuss when it makes sense to use each.
MachMetrics
FEBRUARY 7, 2019
Why do fast sites make more money? Because of nobody like a slow website. 14% of your audience will start shopping at another site if your page loads are slow, and 23% will simply stop the shopping experience or walk away from the computer. That has a huge affect on your business bottom line. Getting your websites, images, and videos to load quickly is an absolute necessity for inbound marketing success.
Uber Engineering
FEBRUARY 28, 2019
At Uber’s scale, thousands of microservices serve millions of rides and deliveries a day, generating more than a hundred petabytes of raw data. Internally, engineering and data teams across the company leverage this data to improve the Uber experience. … The post Managing Uber’s Data Workflows at Scale appeared first on Uber Engineering Blog.
High Scalability
FEBRUARY 8, 2019
Wake up! It's HighScalability time: Change is always changing. What will the next 5 years look like? Do you like this sort of Stuff? I'd greatly appreciate your support on Patreon. Know anyone who needs cloud? I wrote Explain the Cloud Like I'm 10 just for them. It has 35 mostly 5 star reviews. They'll learn a lot and love you forever. 16,000 : Chrome bugs found with ClusterFuzz; $2,000,000 : for Apple iOS remote jailbreak; $1 million : think twice when profiting from a bug; 0 : clicks to over t
Baron Schwartz
FEBRUARY 23, 2019
My Twitter profile currently includes the phrase “silence is violence.” People ask me about this occasionally: what does it mean? I don’t know where I picked up this phrase, and maybe it has a different meaning for me than for others, but what I mean by it is that if I’m a bystander who witnesses something I disagree with, I’m actively supporting the behavior to which I object.
Percona
FEBRUARY 27, 2019
Following my post MySQL 8 is not always faster than MySQL 5.7, this time I decided to test very simple read-only CPU intensive workloads, when all data fits memory. In this workload there is NO IO operations, only memory and CPU operations. My Testing Setup. Environment specification. Release | Ubuntu 18.04 LTS (bionic). Kernel | 4.15.0-20-generic. Processors | physical = 2, cores = 28, virtual = 56, hyperthreading = yes.
Smashing Magazine
FEBRUARY 5, 2019
iOS Performance Tricks To Make Your App Feel More Performant. iOS Performance Tricks To Make Your App Feel More Performant. Axel Kee. 2019-02-05T13:00:00+01:00. 2019-04-29T18:34:58+00:00. Although modern iOS hardware is powerful enough to handle many intensive and complex tasks, the device could still feel unresponsive if you are not careful about how your app performs.
Edge Perspectives
FEBRUARY 4, 2019
Small moves, smartly made, can set big things in motion – that’s the sub-title of my last book, The Power of Pull. It’s been a key theme of my work for decades, but it’s coming back to bite me. I find that a lot of people have grabbed on to this message to justify incremental actions with limited funding, while holding out the expectation that they will potentially lead to big results.
J. Paul Reed
FEBRUARY 13, 2019
A mouthful of a title… but then, I suppose most thesis titles are. It’s been a long time coming, but I’m happy to finally report, it’s official: my thesis for Lund’s Human Factors and Systems Safety program has been published ! Astute followers may be wondering “Hey, wait a second, I thought you graduated last summer? Twitter has the receipts !” Well, I did march with my classmates last summer.
High Scalability
FEBRUARY 27, 2019
In part one , we described our Analytics data ingestion pipeline, with BigQuery sitting as our data warehouse. However, having our analytics events in BigQuery is not enough. Most importantly, data needs to be served to our end-users. TL;DR?—?Teads Analytics big picture In this article, we will detail: Why we chose Redshift to store our data marts, How it fits into our serving layer, Key learnings and optimization tips to make the most out of it, Orchestration workflows, How our data visua
PDC
FEBRUARY 13, 2019
Parallel programming solves big numerical problems by dividing them into smaller sub-tasks, and hence reduces the overall computational time on multi-processor and/or multi-core machines. Parallel programming is well supported in traditional programming languages like C and FORTRAN, which are suitable for “heavy-duty” computational tasks.
The Polyglot Developer
FEBRUARY 25, 2019
While REST APIs are amongst the most popular when it comes to client consumption, they are not the only way to consume data and they aren’t always the best way. For example, having to deal with many endpoints or endpoints that return massive amounts of data that you don’t need are common. This is where GraphQL comes in. With GraphQL you can query your API in the same sense that you would query a database.
Speed Curve
FEBRUARY 4, 2019
Loading scripts asynchronously is critical for getting pages to render more quickly. We care about rendering because that's what users see; if rendering is slow users have a negative experience. But it's not just about what users see - how the site feels is also important. That's why we focus so much on CPU time. If the CPU is blocked, then browsers are delayed responding to user interactions like scrolling and clicking on links.
O'Reilly Software
FEBRUARY 6, 2019
Glenn Vanderburg talks about the importance of letting your attention roam, and he shares examples of how insights from other fields have inspired software practitioners. Continue reading Roaming free: The power of reading beyond your field.
Testlodge
FEBRUARY 6, 2019
It’s not uncommon to see a “Beta Release” of a product. But what does “beta” mean? And what about UAT… what’s that? We’ve talked a lot about different types of testing and we’ve also discussed the difference between alpha and beta testing in the past. There are a lot of them. In this article, we’re going to look at UAT and Beta Testing.
High Scalability
FEBRUARY 1, 2019
Wake up! It's HighScalability time: Memory module for the Apollo Guidance Computer (Mike Stewart). The AGC weighed 70 pounds and had 2048 words of RAM in erasable core memory and 36,864 words of ROM in core rope memory. It flew to the moon. Do you like this sort of Stuff? Please go to Patreon and do what comes natural. Need cloud? Stand under Explain the Cloud Like I'm 10 (35 nearly 5 star reviews). $10.9B : Apple's Q1 services revenue; 5 million : homes on Airbnb; 2.5-5% : base64 gzipped files
TechBeacon Testing
FEBRUARY 19, 2019
Over the last decade, QA has moved from the periphery to become a priority for every business that produces software and apps. This focus has sparked much debate about whether development and testing should shift left or right. But both of these approaches fail to take into account how a customer uses the product. It's time for a new shift.
The Polyglot Developer
FEBRUARY 6, 2019
As you know, based on a few of the tutorials that I’ve published recently, I have a YubiKey that I’ve been learning how to take full advantage of. In previous tutorials I demonstrated how to implement U2F in your web application , but most YubiKey devices do so much more than just U2F authentication. For example, the YubiKey NEO and YubiKey 5 have support for U2F, FIDO2, OpenPGP, OTP, and a bunch of other crazy technologies.
MachMetrics
FEBRUARY 22, 2019
It’s one of the most frequently asked questions I see asked, “I’ve tested my site speed, so now what do these metrics mean?” Don’t worry if you’re confused – there’s a lot to understand. Here we’ll explain what each of the common web performance metrics mean, and how can you use that data to optimize your site and make it faster.
O'Reilly Software
FEBRUARY 5, 2019
Tamar Eilam offers an overview of cloud-native programming and outlines a path toward the unification of the cloud programming model. Continue reading The future of cloud-native programming.
Addy Osmani
FEBRUARY 20, 2019
Are there known large JavaScript dependencies your team wish they could disallow from a project? Good news! ESLint supports disallowing specific imports from projects using the no-restricted-imports rule.
High Scalability
FEBRUARY 15, 2019
Wake up! It's HighScalability time: Opportunity crossed over the rainbow bridge after 15 years of loyal service. " Our beloved Opportunity remains silent.". Do you like this sort of Stuff? I'd greatly appreciate your support on Patreon. Know anyone who needs cloud? I wrote Explain the Cloud Like I'm 10 just for them. It has 39 mostly 5 star reviews.
TechBeacon Testing
FEBRUARY 6, 2019
At some point in your test automation, you will run into a common problem: Too many automated UI tests take too long to execute.
The Polyglot Developer
FEBRUARY 20, 2019
If you’ve been following along, you’re probably familiar with my love of Node.js and the Go programming language. Over the past few weeks I’ve been writing a lot about API development with MongoDB and Node.js, but did you know that MongoDB also has an official SDK for Golang ? As of now the SDK is in beta, but at least it exists and is progressing.
Smashing Magazine
FEBRUARY 12, 2019
Webhosting Compared: Testing The Uptime Of 32 Hosts In 2018. Webhosting Compared: Testing The Uptime Of 32 Hosts In 2018. John Stevens. 2019-02-12T12:00:22+01:00. 2019-04-29T18:34:58+00:00. (This is a sponsored article.) Many surveys have indicated that uptime is number one factor when choosing a web host and although most, if not all, web hosting services “promise” 99.99% uptime, it’s not the case with our case-study.
O'Reilly Software
FEBRUARY 6, 2019
Stuart Halloway explains how to augment agility with principles for designing systems. Continue reading Design after Agile: How to succeed by trying less.
Addy Osmani
FEBRUARY 8, 2019
Learn about approaches to reduce the cost of rehydration in server rendered experiences
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