Dynatrace

JULY 3, 2019

Dynatrace has long empowered you with the capability to detect problems in performance and availability, as well as application errors, with full-stack insights and root-cause analysis. Usability analytics with rage clicks will be publicly available towards the end of June, 2019. So, stay tuned for details! Next steps.

Analytics 120

Analytics Tuning Mobile Monitoring 120

SQL Performance

MARCH 17, 2020

Back in 2014, I wrote an article called Performance Tuning the Whole Query Plan. This follow-up post revisits the question for SQL Server 2019, using a larger number of rows. I will be using the 50GB Stack Overflow 2013 database , but any large table with a low number of distinct values would do. Test Environment. BountyAmount.

Servers 86

Servers Tuning Database Efficiency 86

The Netflix TechBlog

OCTOBER 15, 2019

No need to acquire locks on tables, which is essential to ensure that the write traffic on the database is never blocked by our service. High availability, via standby instances across AWS Availability Zones. Historically, message publishing at Netflix is optimized for availability instead of durability (see a previous blog ).

Transportation 192

Transportation Architecture Processing Storage 192

Dynatrace

MAY 6, 2019

For IBM CICS and IMS SDK, avail of the SDK with our CICS and IMS code modules, which allows you to seamlessly integrate customized technologies (e.g., This is available 24×7 for all transactions in your production environments. CICS and IMS support is available with Dynatrace SaaS and Managed versions 1.164. CICS sockets).

Java 116

Java Programming Technology Technology 116

O'Reilly

MAY 25, 2021

GPT-3 is essentially an auto-complete bot whose underlying Machine Learning (ML) model has been trained on vast quantities of text available on the Internet. Note that the dataset on which GPT-3 trained terminated around October 2019. OpenAI’s text generating system GPT-3 has captured mainstream attention. HODL for Fun & Profit.

Social Media 138

Social Media Media Internet Internet 138

SQL Performance

MARCH 8, 2021

This can make it difficult to draw sound performance-tuning conclusions. The following examples use the public Stack Overflow 2013 database ( download details ), with a single index added: CREATE INDEX PP ON dbo. The yellow consumer times are short because it is quick to retrieve a row from the exchange when data is available.

Servers 95

Servers Tuning Architecture Processing 95

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. top(1) showed that only the Cassandra database was consuming CPU. Checking those available: $ cat /sys/devices/system/clocksource/clocksource0/available_clocksource. These can be invisible to top(8).

Speed 126

Speed Java AWS Virtualization 126

HammerDB

OCTOBER 18, 2019

HammerDB doesn’t publish competitive database benchmarks, instead we always encourage people to be better informed by running their own. rc3-custom #1 SMP Mon Aug 12 14:07:33 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Welcome to Ubuntu 19.04 (GNU/Linux 5.3.0-rc3-custom uname -a Linux ubuntu19 5.3.0-rc3-custom rc3-custom x86_64).

Benchmarking 63

Benchmarking Performance Hardware C++ 63

SQL Performance

AUGUST 15, 2019

Updated August 15th, 2019 for 0.9.6. Connecting to SQL Server 2012 or better, or Azure SQL Database. New in 0.9.6 – August 15th, 2019. For actual plans, the only runtime metrics available in grids are Duration and CPU (given a modern enough version of SQL Server ). SentryOne Plan Explorer / Query Tuning forum.

Azure 50

Azure Servers Tuning Operating System 50

Apica

MAY 10, 2019

2019 will go down as the year when giants collided over who is streaming the right content to win the growing market demand and dollars. These companies should involve multiple organizations during Apica’s load testing to observe and pinpoint opportunities for performance tuning. million Netflix users as of Q3 2018.

Testing 40

Testing Performance Social Media Wireless 40

HammerDB

OCTOBER 12, 2018

Similarly for this guide MySQL can be swapped for a mySQL based databases such as MariaDB. As is also the case this limitation is at the database level (especially the storage engine) rather than the hardware level. As is exactly the same with PostgreSQL for system choice a 2 socket system is optimal for MySQL OLTP performance.

Best Practices 40

Best Practices Scalability Performance C++ 40

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. top(1) showed that only the Cassandra database was consuming CPU. In 2019 myself and others tested kvm-clock and found it was only about 20% slower than tsc. What on Earth is Ubuntu doing that results in 30% higher CPU time!?

Speed 40

Speed Java AWS Virtualization 40

The Netflix TechBlog

DECEMBER 17, 2019

Andreas Andreakis , Ioannis Papapanagiotou Overview Change-Data-Capture (CDC) allows capturing committed changes from a database in real-time and propagating those changes to downstream consumers [1][2]. In databases like MySQL and PostgreSQL, transaction logs are the source of CDC events. Designed with High Availability in mind.

Database 212

Database Traffic Transportation Open Source 212

The Netflix TechBlog

DECEMBER 17, 2019

Andreas Andreakis , Ioannis Papapanagiotou Overview Change-Data-Capture (CDC) allows capturing committed changes from a database in real-time and propagating those changes to downstream consumers [1][2]. In databases like MySQL and PostgreSQL, transaction logs are the source of CDC events. Designed with High Availability in mind.

Database 197

Database Traffic Transportation Open Source 197

O'Reilly

JULY 25, 2023

For instance, if I’m reading a paper from 2019, a popular song from that year could start playing. Similarly, it taught me that “Background scripts are ideal for handling long-term or ongoing tasks, managing state, maintaining databases, and communicating with remote servers. But still, I liked how Moment.js

Programming 98

Programming Code Design Benchmarking 98