SQL Performance

APRIL 10, 2019

You can also find it as part of the document ISO/IEC 9075-2:2016, Information technology — Database languages — SQL — Part 2: Foundation (SQL/Foundation) (available for purchase). The input is a table or table expression, and the output is a virtual table. STOCK1 2019-02-12 150.00 STOCK1 2019-02-13 151.00

C++ 73

C++ Virtualization Servers Code 73

HammerDB

JULY 8, 2019

HammerDB already has 2 interfaces with which to interface with the commands to build and test databases using the GUI interface or CLI. From HammerDB version 3.2 there is an additional interface that enables HammerDB to run as Web Service. hammerdbws HammerDB Web Service v3.2 Using a browser to navigate to that port will show the help screen.

Benchmarking 40

Benchmarking Virtualization C++ Database 40

HammerDB

JULY 8, 2019

Copyright (C) 2003-2019 Steve Shaw Type "help" for a list of commands The xml is well-formed, applying configuration SETTING CONFIGURATION Database set to Oracle. /hammerdbcli auto buildcli.tcl echo "BASH SCRIPT AFTER BUILD.". When run the output looks as follows: /build.sh BASH SCRIPT BEFORE BUILD. HammerDB CLI v3.2

C++ 40

C++ Virtualization Database Design 40

The Morning Paper

NOVEMBER 8, 2020

Virtual consensus in Delos , Balakrishnan et al. If you think of this a bit like mapping memory addresses to data in memory, then another parallel comes to mind: the virtual address space. We propose the novel abstraction of a virtual shared log (or VirtualLog). Facebook, Inc. ), OSDI’2020. What does the VirtualLog give us?

Virtualization 126

Virtualization Latency Storage Systems 126

High Scalability

OCTOBER 3, 2019

ScaleGrid, a rapidly growing leader in the Database-as-a-Service (DBaaS) space, has just launched their new fully managed Redis on Azure service. Redis, the #1 key-value store and top 10 database in the world, has grown by over 300% in popularity over that past 5 years, per the DB-Engines knowledge base.

Azure 23

Azure Cloud Open Source Cache 23

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. Disney announced they would have a streaming service, while Netflix subscribers reached an all-time high with 137.1 million Netflix users as of Q3 2018.

Testing 40

Testing Performance Social Media Wireless 40

KeyCDN

MARCH 14, 2019

Here is a roundup of front end web development trends to keep an eye on in 2019. Frontend Frameworks If you’re not using a frontend framework like React, Vue.js, or Angular to help build your projects, then 2019 is a good year to start. IBM, Microsoft, and Amazon are all exploring new ways to use blockchains in 2019.

Development 101

Development Blockchain Serverless Social Media 101

Percona

JULY 15, 2023

One very common problem when trying to optimize a database environment is index usage. Introduction to MySQL Indexes Indexes in MySQL are database structures used to optimize data retrieval speed and efficiency. Need help managing complex database environments? This structure makes for faster data access.

Virtualization 77

Virtualization Speed Database Efficiency 77

O'Reilly

FEBRUARY 18, 2020

Growth is still strong for such a large topic, but usage slowed in 2018 (+13%) and cooled significantly in 2019, growing by just 7%. But sustained interest in cloud migrations—usage was up almost 10% in 2019, on top of 30% in 2018—gets at another important emerging trend. Still cloud-y, but with a possibility of migration.

Software Architecture 134

Software Architecture DevOps Data Engineering Architecture 134

Dynatrace

APRIL 5, 2021

Azure is a large and growing cloud computing ecosystem that empowers its users to access databases, launch virtual servers, create websites or mobile applications, run a Kubernetes cluster, and train machine learning models, to name a few examples. Consider using virtual machines or specialized frameworks for these types of tasks.

Azure 137

Azure Serverless IoT Lambda 137

SQL Performance

APRIL 27, 2020

Azure SQL Database is Microsoft's database-as-a-service offering that provides a tremendous amount of flexibility. Microsoft is continually working on improving their products and Azure SQL Database is no different. HyperScale Database. Hyperscale databases are provisioned using vCores. DTU Pricing Tier.

Azure 55

Azure Database Serverless Hardware 55

HammerDB

JUNE 27, 2022

HammerDB is a software application for database benchmarking. It enables the user to measure database performance and make comparative judgements about database hardware and software. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking. The HammerDB name.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. top(1) showed that only the Cassandra database was consuming CPU. This was much worse many years ago on Xen virtual machine guests.

Speed 126

Speed Java AWS Virtualization 126

Dynatrace

SEPTEMBER 23, 2021

In 2019, Gartner reported that 30% of organizations worldwide were running containerized applications. Unfortunately, container security is much more difficult to achieve than security for more traditional compute platforms, such as virtual machines or bare metal hosts. Containers have become hugely popular. Manage secrets.

Open Source 250

Open Source Benchmarking Best Practices Network 250

SQL Server According to Bob

DECEMBER 18, 2018

Durability: “In database systems , durability is the ACID property which guarantees transactions that have committed will survive permanently. Microsoft SQL Server Database Engine Input/Output Requirements. product: Virtual Disk. Msft Virtual Disk 1.0 The Back Story. Fua (Forced Unit Access). lshw -class disk.

Servers 90

Servers Media Cache Storage 90

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. Both of these Intel processors are special bespoke models that are not in the Intel ARK database. The key specifications for the Lsv2 series virtual machines are shown in Table 1.

Azure 42

Azure Virtualization Storage Benchmarking 42

Percona

JULY 7, 2023

Unfortunately, using certain open source database software as part of an HA architecture can present significant challenges. This blog highlights considerations for keeping your own PostgreSQL databases highly available and healthy. The same changes made in the primary database are made in the replicas.

Availability 81

Availability Open Source Architecture Database 81

Percona

SEPTEMBER 1, 2023

This blog was originally published in February 2019 and was updated in September 2023. Web applications rely on databases to run the internet, powering everything from e-commerce platforms to social media networks to streaming services. This affects the type and range of characters that can be inserted into the column.

Performance 52

Performance Storage Social Media Database 52

SQL Performance

FEBRUARY 1, 2022

The transaction log contains virtual log files, which contain log blocks, which store the actual log records. Virtual Log Files. The transaction log is split up into sections called virtual log files , commonly just called VLFs. You’d think the sequence numbers would start at 1 for a brand-new database, but that is not the case.

Architecture 53

Architecture Servers Virtualization Database 53

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. top(1) showed that only the Cassandra database was consuming CPU. This was much worse many years ago on Xen virtual machine guests.

Speed 52

Speed Java AWS Virtualization 52

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. top(1) showed that only the Cassandra database was consuming CPU. This was much worse many years ago on Xen virtual machine guests.

Speed 40

Speed Java AWS Virtualization 40

O'Reilly

JULY 15, 2020

The share of adoption for the 12-month period between January of 2019 and January of 2020 likewise suggests that microservices remains a topic of interest to O’Reilly users. Perhaps; we’ll take a look at that next, specifically with respect to containers, centrally managed databases, and monolithic UIs. doesn’t give us much to go on.

Database 135

Database Architecture Education Systems 135

Enprowess

SEPTEMBER 7, 2021

React is an open-source front-end library based on JavaScript, created and maintained by Facebook, and is well known for its virtual DOM feature. The performance of React improves because of the Virtual DOM algorithm. Performance: React uses Virtual DOM (document object model), which improves the performance of applications.

Open Source 52

Open Source Virtualization Programming Servers 52

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

Smashing Magazine

SEPTEMBER 26, 2019

2019-09-26T12:30:59+02:00. 2019-09-26T11:02:12+00:00. Technically, we have to split our existing application into microservices virtually. By “virtually” I mean that in general, you don’t need to change your existing application physically: it’s enough to have structure settled in any form even if only on paper.

Architecture 73

Architecture Virtualization Servers Technology 73

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

Dynatrace

JANUARY 15, 2020

Having released this functionality in an Preview Release back in September 2019, we’re now happy to announce the General Availability of our Citrix monitoring extension. Dynatrace Extension: database performance as experienced by the SAP ABAP server. Tie latency issues to host and virtualization infrastructure network quality.

Latency 36

Latency Performance Virtualization Infrastructure 36

Testsigma

NOVEMBER 16, 2021

In the summer of 2019, British Airways faced a technical issue on its website. Notice how March 2020 has shown an extremely positive change in website users with respect to March 2019. Even my data is synced over to different platforms quickly which means I am working on the same database for each of my applications. A platform.

Testing 52

Testing Website Small Business Internet 52

SQL Performance

AUGUST 27, 2019

On August 7, 2019, AMD finally unveiled their new 7nm EPYC 7002 Series of server processors, formerly code-named "Rome" at the AMD EPYC Horizon Event in San Francisco. Single-Socket Database Servers. Better security , with Secure Memory Encryption and Secure Encrypted Virtualization. More total PCIe lanes and bandwidth.

Servers 52

Servers Benchmarking Virtualization Architecture 52