Dynatrace

DECEMBER 14, 2021

Already in 2018, 82% of all travel bookings globally took place without human interaction. During the booking process, I attempted to use some of my travel vouchers – but the button to apply these credits didn’t work. For some time, a travel company’s digital presence has been the primary way to attract and interact with customers.

Airlines 246

Airlines Social Media Entertainment Transportation 246

High Scalability

SEPTEMBER 21, 2018

” @mjpt777 : "Patterson indicated that rewriting Python into C gets you a 50 times speedup in performance". And if you know anyone looking for a simple book that uses lots of pictures and lots of examples to explain the cloud, then please recommend my new book: Explain the Cloud Like I'm 10. They'll love you even more.

Internet 126

Internet Internet Scalability Traffic 126

The Netflix TechBlog

MARCH 13, 2020

As mentioned in our earlier blog post , Intel and Netflix have been collaborating on the SVT-AV1 encoder and decoder framework since August 2018. SVT-AV1 is written in C and can be compiled on major platforms, such as Windows, Linux, and macOS.

Open Source 159

Open Source Efficiency C++ Speed 159

The Netflix TechBlog

APRIL 17, 2019

The standard specification describes in minute detail how a video bitstream should be processed in order to produce displayable video frames. In 2018, AOM has published a specification for the AV1 video codec. In August 2018, Netflix’s Video Algorithms team and Intel’s Visual Cloud team decided to join forces on SVT-AV1 development.

Open Source 167

Open Source Scalability Speed Efficiency 167

O'Reilly

JANUARY 13, 2020

As we noted last year, the release of Java 11 in September 2018 brought a raft of new features, including many that give the release a significant, clear advantage for using containers. Although many Android developers are still in the process of making the move to Kotlin, those who have already transitioned know the benefits it offers.

Programming 144

Programming Java Google C++ 144

O'Reilly

MARCH 2, 2020

When a project is going off track because some requirement wasn’t understood properly, you need to fix that as soon as possible—not after a year-long development process. When processes change, who wins, who loses, and why? Key survey results: The C-suite is engaged with data quality. We were very lucky not to be sued.)

Artificial Intelligence 27

Artificial Intelligence Software Architecture Programming C++ 27

Brendan Gregg

AUGUST 29, 2021

Problem Statement The microservice managed and processed large files, including encrypting them and then storing them on S3. 1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03

Cache 78

Cache C++ AWS Java 78

Brendan Gregg

OCTOBER 7, 2018

C @ns: [256, 512) 10900 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | [512, 1k) 18291 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@| [1k, 2k) 4998 |@@@@@@@@@@@@@@ | [2k, 4k) 57 | | [4k, 8k) 117 | | [8k, 16k) 48 | | [16k, 32k) 109 | | [32k, 64k) 3 | |. Pages paged in by process bpftrace -e 'software:major-faults:1 { @[comm] = count(); }'.

C++ 40

C++ Virtualization Programming Latency 40

The Morning Paper

JUNE 20, 2019

In total, there were 112 such incidents over the period March – September 2018 (not all of them affecting external customers). Most Azure code is written in.Net managed languages such as C#, reducing memory leak bugs. All but one of the data format bugs involved multiple processes or nodes. Timing incidents.

Cloud 81

Cloud Azure Cache C++ 81

SQL Performance

OCTOBER 14, 2020

In Part 4 of the series, which focused on optimization of derived tables, I described a process of unnesting/substitution of table expressions. The TL;DR version of substitution/unnesting of CTEs is that the process is the same as it is with derived tables. Here’s the attempted solution using a CTE: WITH C AS. ( FROM Sales.

C++ 52

C++ Servers Code Efficiency 52

The Netflix TechBlog

JULY 1, 2019

In a previous post , we described how our TV application consists of a C++ SDK installed natively on the device, an updatable JavaScript user interface (UI) layer, and a custom rendering layer known as Gibbon. when we rolled them out globally at the end of 2018. both the full and fallback experiences?—?when

Cache 167

Cache Design Testing Development 167

Smashing Magazine

JUNE 30, 2021

While Workers are the “thread” primitive of the web, they are very different from the threads you might be used to from C++, Java & co. Paul Lewis and I once explored actor-centric app architecture at Chrome Dev Summit 2018. Once the state object is updated, it sends a copy of the updated state object to the DOM actor.

Games 145

Games Architecture Code C++ 145

Nick Desaulniers

OCTOBER 24, 2018

s -S & $ gdb vmlinux ( gdb ) target remote :1234 ( gdb ) hbreak start_kernel ( gdb ) c ( gdb ) lx-dmesg. It will seem that there’s no output, and QEMU isn’t responding to ctrl+c. Try ctrl+a , then c , to get a (qemu) prompt. Well at least we’re no longer in the dark (remember, ctrl+a , c , q to exit). enable-kvm.

C++ 56

C++ Hardware Virtualization Systems 56

Randon ASCII

FEBRUARY 25, 2018

See the end of the post for an October 2018 bug fix update, or read the whole story: Flaky failures are the worst. The next step was a custom C++ program that opened the just-linked exe and called FlushFileBuffers on it. 1) Building Chrome very quickly causes CcmExec.exe to leak process handles. Update, October 2018.

Programming 79

Programming Hardware Cache Code 79

Brendan Gregg

AUGUST 18, 2019

C @ns: [256, 512) 10900 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | [512, 1k) 18291 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@| [1k, 2k) 4998 |@@@@@@@@@@@@@@ | [2k, 4k) 57 | | [4k, 8k) 117 | | [8k, 16k) 48 | | [16k, 32k) 109 | | [32k, 64k) 3 | |. pid process ID. comm Process or command name. Attaching 2 probes. ^C

Latency 57

Latency C++ Cache Programming 57

HammerDB

OCTOBER 12, 2018

This post complements the previous best practice guides this time with the focus on MySQL and MariaDB and achieving top levels of performance with the HammerDB MySQL TPC-C test. SELECT DISTINCT c from sbtest where id between ? order by c. SELECT c from sbtest where id=? 10 rows in set (0.02 c_ytd_payment: 10.00

Best Practices 40

Best Practices Scalability Performance C++ 40

ACM Sigarch

MARCH 18, 2019

Assume that your organization processes travel reimbursements and wants to know the average processing time (latency). If 200 requests arrive per day and there are 10,000 requests pending in the system, then Little’s Law reveals an average of 50 days to process each request = 10,000 requests / (200 requests/day). Hill is John P.

Systems 61

Systems Latency Performance Analytics 61

ACM Sigarch

MARCH 25, 2019

The M/M/1 queue will show us a required trade-off among (a) allowing unscheduled task arrivals, (b) minimizing latency, and (c) maximizing throughput. How long can the computer take to process (service) each packet (not counting waiting), denoted S? While Little’s Law provides a black-box result, it does not expose tradeoffs.

Systems 54

Systems Latency Performance C++ 54

HammerDB

OCTOBER 8, 2018

This post gives a HOWTO guide on system configuration for achieving top levels of performance with the HammerDB PostgreSQL TPC-C test. D isabling all C-states or Idle states is likely to reduce overall performance by reducing the available turbo frequency. postgres 201542 201539 0 Sep19 ? 00:00:02 postgres: writer process.

Best Practices 40

Best Practices Scalability Performance Hardware 40

Brendan Gregg

AUGUST 29, 2021

Problem Statement The microservice managed and processed large files, including encrypting them and then storing them on S3. 1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03

Cache 40

Cache C++ AWS Systems 40

All Things Distributed

MAY 21, 2018

Even the activities of doctors, lawyers or taxi drivers have hardly changed in the last decade, at least in terms of their underlying processes. Only parts of the processes are being performed by machines, or at least supported by them. These new offerings are organized on platforms or networks, and less so in processes.

Artificial Intelligence 67

Artificial Intelligence Technology Technology IoT 67

Smashing Magazine

FEBRUARY 8, 2022

So, in 2018, I wanted to revive Webpack Runtime Analyzer, using my newly accumulated experience. This is all part of Webpack’s optimization process, in order to reduce the size of output assets. Webpack provides Statoscope with information about all the modules, chunks and assets that it encounters during the build process.

Storage 89

Storage Code Metrics C++ 89

The Morning Paper

DECEMBER 1, 2019

Plus ça change, plus c’est la même chose. One bit is used to mark a node as invalid while it is in the process of being inserted into the list, and the other bit is used as a logical deletion marker. State-of-the-art constructions of durable lock-free sets, denoted Log-Free Data Structures, were recently presented by David et al.,

Efficiency 60

Efficiency Cache C++ Performance 60

HammerDB

NOVEMBER 5, 2018

If you are new to running Oracle, SQL Server, MySQL and PostgreSQL TPC-C workloads with HammerDB and have needed to investigate I/O performance the chances are that you have experienced waits on writing to the Redo, Transaction Log or WAL depending on the database you are testing. A good example of how tuning is an iterative process.

Benchmarking 40

Benchmarking Database C++ Virtualization 40

O'Reilly

MAY 19, 2020

However, a notable minority—some 15%—occupy C-level or executive roles. In our analysis of user activity on the O’Reilly learning platform , we found that DevOps-related search and usage declined in both 2018 and 2019. Technical leads and architects (about 11%) are next, followed by software and systems architects (9+%).

Cloud 144

Cloud Serverless AWS DevOps 144

HammerDB

NOVEMBER 30, 2018

TCL was designed as a language to be closely tied with C/C++ and at this lower level there is the compiled TCL (tclsh) or TCL/TK (wish) interpreter and supporting libraries. The include directory contains the platform specific C header files for this purpose. These bin and lib directories are not included with the source code.

Architecture 40

Architecture Virtualization Open Source C++ 40

Percona

MAY 1, 2023

This blog was originally published in August 2018 and was updated in May 2023. PostgreSQL performance optimization is an ongoing process involving monitoring, benchmarking, and adjustments to maintain high-performing PostgreSQL databases. The checkpoint process flushes the data into the data files.

Tuning 52

Tuning Database Efficiency Performance 52

The Symphonia

DECEMBER 7, 2018

Serverless, and related announcements, at re:Invent 2018 The fountains at the Bellagio?—?still Ruby, C++, and Rust are now Lambda languages directly supported by AWS. Lambda can now process HTTP(S) requests via an Application Load Balancer (ALB) , and not just API Gateway. Closing out And that’s your re:Invent wrap-up for 2018.

Lambda 40

Lambda Serverless AWS Blockchain 40

Tech News Gather

MAY 3, 2023

Over 2 million developers have used the Flutter toolkit since its introduction in 2018, as Tim Sneath, Flutter’s product manager, reported last year. ” Creating mobile applications used to be quite costly when the languages of choice were Objective C/Swift and Java/Kotlin.

Mobile 40

Mobile Development Open Source Energy 40

J. Paul Reed

JANUARY 24, 2017

In the vein of my 2016 prediction that DevOps will continue dis-integrating , I believe that we’ll see a process of “ othering ” with definitions of DevOps that are not highly aligned with the The Handbook’s definition, along with pressure to rename those ideas to soemthing other than “DevOps.” But we’ll see this mechanism happen in 2017.

DevOps 40

DevOps Engineering IoT C++ 40

Enprowess

NOVEMBER 2, 2021

It was the peak of its popularity in 2018. Performance : multi-processing and parallel threading is not supported, which leads to slow performance. Seamless integration : There is no need to Re-write code because it easily integrates with Swift or Objective C for iOS apps and Java for android. – An overview.

Development 52

Development Social Media Mobile Code 52

Smashing Magazine

SEPTEMBER 6, 2021

This retry process best happens, of course, somewhere before the back-end server — for example, at the load balancer. I would personally recommend using Cloudflare or Fastly because they have been intimately involved in the standardization process and will have the most advanced and well-tuned implementations available.

Network 120

Network Servers Cache Traffic 120

The Morning Paper

OCTOBER 29, 2019

Today we’re taking a closer look at CORELS, the C ertifiably O ptimal R ul E L ist S algorithm that we encountered in Rudin’s arguments for interpretable models earlier this week. Learning certifiably optimal rule lists for categorical data Angelino et al., or ID3 so why do we need CORELS? Finding optimal rule lists.

C++ 45

C++ Design Testing Code 45

Smashing Magazine

OCTOBER 26, 2018

2018-10-26T13:45:46+02:00. When it comes down to how WordPress is programmed, one thing is certain: it doesn’t follow the M odel- V iew- C ontroller (MVC) design pattern that many developers are familiar with. Recommended reading : WordPress Security As A Process. Denis Žoljom. 2019-04-29T18:34:58+00:00. Security concerns.

Cache 88

Cache Website Speed Testing 88

SQL Server According to Bob

DECEMBER 18, 2018

The data storage always uses the multi-step flush process. The changes in the imap and block device areas can be leveraged by other file systems but as Dec 2018 (this post) only XFS has enabled optimized Fua data write capabilities. Key Commit References in 4.18 and newer kernel releases. fc29/x86_64/ — Linux fedora29ws 4.18.0-1.fc29.x86_64

Servers 90

Servers Media Cache Storage 90

Smashing Magazine

NOVEMBER 5, 2018

2018-11-05T14:30:14+01:00. ffmpeg is a free and open source command line tool that is designed for the processing of video and audio files. You can convert your GIF file to WebM by running the command below in the terminal: ffmpeg -i animated.gif -c vp9 -b:v 0 -crf 41 video.webm. Ayo Isaiah. 2019-04-29T18:34:58+00:00.

Performance 64

Performance Website C++ Open Source 64

Smashing Magazine

JANUARY 7, 2019

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Also, as Patrick Meenan suggested, it’s worth to plan out a loading sequence and trade-offs during the design process.

Performance 111

Performance Cache Network Metrics 111