Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? How would you _time_ time?

Speed 126

Speed Java AWS Virtualization 126

Smashing Magazine

DECEMBER 2, 2021

JVM Programming Advent Calendar. Created by Eric Wastl, this is an advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like. If you don’t have a Figma account, don’t worry, it’s free.) Amy Dutton on Twitter. The Java Advent 2021 is here!

Design 108

Design Development Programming Website 108

The Morning Paper

FEBRUARY 11, 2020

Let’s Encrypt was publically announced on November 18th 2014, and began providing service to the public on Decemmber 3rd 2015. ISRG subsequently established its own root trust anchor which was accepted into all major browser and platform root programs as of August 2018.

Internet 119

Internet Internet Open Source Transportation 119

The Netflix TechBlog

APRIL 17, 2019

Netflix headquarters circa 2014. AOM has produced the reference software for AV1, which is called libaom and is available online. SVT-AV1 uses parallelization at several stages of the encoding process, which allows it to adapt to the number of available cores including newest servers with significant core count.

Open Source 166

Open Source Scalability Speed Efficiency 166

All Things Distributed

DECEMBER 12, 2018

Today, I'm happy to announce that the AWS Europe (Stockholm) Region, our 20th Region globally, is now generally available for use by customers. With this launch, AWS now provides 60 Availability Zones, with another 12 zones and four Regions expected to come online by 2020 in Bahrain, Cape Town, Hong Kong, and Milan.

AWS 124

AWS Cloud Games Serverless 124

Alex Russell

APRIL 29, 2021

This post mines publicly available data on the pace of compatibility fixes and feature additions to assess the claim. The information it captures is, however, available going back somewhat further, providing a fuller picture of the trend lines of engine completeness. Count of APIs available from JavaScript by Web Confluence.

Media 145

Media Games Education Engineering 145

The Morning Paper

NOVEMBER 21, 2019

Our checks are based on well-known problems that arise in experimental design and causal inference… PlanAlyzer checks PlanOut programs for a variety of threats to internal validity, including failures of randomization, treatment assignment, and causal sufficiency. PlanOut itself has been ported many programming languages at this point.

Programming 52

Programming Internet Internet Design 52

SQL Performance

APRIL 8, 2019

These VMs are not available in all regions, so you will want to check the availability in the Azure region that you are interested in using. As 128GB DDR4 DIMMs become more widely available that total capacity will double. lanes per socket that is available in the host machine with the AMD EPYC 7551 processor.

Azure 42

Azure Virtualization Storage Benchmarking 42

Percona

JUNE 4, 2023

MariaDB retains compatibility with MySQL, offers support for different programming languages, including Python, PHP, Java, and Perl, and works with all major open source storage engines such as MyRocks, Aria, and InnoDB. Scalability and replication options that can improve performance and high availability.

Open Source 52

Open Source Servers Storage Scalability 52

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? How would you _time_ time?

Speed 40

Speed Java AWS Virtualization 40

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS?

Speed 52

Speed Java AWS Virtualization 52

Enprowess

JANUARY 11, 2022

With a myriad of options available out there, we have compiled a list of top frontend frameworks out there to help you out. Many of the software programs have a web version in some form or other. Many front end frameworks are available in different languages. Various learning resources and examples are also widely available.

Virtualization 64

Virtualization Website Speed Mobile 64

Brendan Gregg

JULY 2, 2021

As an extreme example, I wrote cachestat(8) while on vacation in 2014 for use on the Netflix cloud, which was a mix of Linux 3.2 BPF didn't exist on those versions, so I used basic Ftrace capabilities that were available on Linux 3.2. It depends on the tool. at the time. Those that have rewritten it will need to rewrite theirs.

Open Source 40

Open Source Latency Cache Energy 40

Percona

JANUARY 14, 2019

With the latest ClickHouse version, all of these features are available, but some of them may not perform fast enough. As a temporary workaround we can do something like this: SELECT count() FROM rc WHERE (created_utc > ( ( SELECT max(created_utc) FROM rc ) - ((60 * 60) * 24))) AND (subreddit = 'programming') ??count()??

Database 40

Database Analytics Blockchain Healthcare 40

Enprowess

SEPTEMBER 20, 2021

Talent availability. Created by Evan You, Vue had its first public appearance in 2014. It has a vast community that explains online courses, many available tutorials, articles, and three times more questions on Stack overflow. Vue vs React: Talent Availability. In this article, I will compare React.js and Vue.js

Open Source 52

Open Source Mobile Scalability Google 52

Brendan Gregg

AUGUST 8, 2017

And here's an excerpt from [Linux] today (include/linux/sched/loadavg.h): #define EXP_1 1884 /* 1/exp(5sec/1min) as fixed-point */ #define EXP_5 2014 /* 1/exp(5sec/5min) */ #define EXP_15 2037 /* 1/exp(5sec/15min) */. 90491 N|rnberg (Germany) Consulting+Networking+Programming+etc'ing 42.

Latency 111

Latency Metrics C++ Systems 111

Highly Scalable

MARCH 10, 2015

This approach can be expressed in more formal way by the following equation: where is the data available for analysis, is the space of a retailer’s actions and decisions, is an econometric model defined as a function of actions and data, and is the optimal strategy. This framework resembles the approach suggested in [JK98].

Retail 152

Retail C++ Analytics Metrics 152

SQL Server According to Bob

DECEMBER 31, 2018

This was a project I created in 2014 to help Microsoft SQL Server support process incoming XEvent files, including the ability to merge XEvent files from multiple servers such as replication or high availability XEvent capture. private System.IO.StreamWriter m_OutputFile; }.

Efficiency 40

Efficiency Code Servers Cache 40