Dynatrace

OCTOBER 28, 2021

The crisis could be technical, natural, or malicious events, for example an earthquake affecting data center availability, or a cyberattack infecting applications and websites. Practitioners subject software to a controlled, simulated crisis to test for unstable behavior. Thus, the tool Chaos Monkey was born.

Engineering 225

Engineering Entertainment Cloud Infrastructure 225

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. It has 32GB RAM, with 24GB available to the SQL Server 2019 instance. Test Environment. The cost threshold for parallelism is set to 50.

Servers 86

Servers Tuning Database Efficiency 86

The Morning Paper

JUNE 13, 2019

As we saw with the SOAP paper last time out, even with a fixed model variant and hardware there are a lot of different ways to map a training workload over the available hardware. First off there still is a model of course (but then there are servers hiding behind a serverless abstraction too!). autoscaling).

Hardware 58

Hardware Latency Serverless Energy 58

Percona

JANUARY 19, 2023

Sharding: Sharding is the concept of splitting data horizontally, i.e. by distributing data into multiple servers (shards), meaning that the different portions of data for a given table, may be stored on many different servers. This can help to split large data sets into smaller ones stored in multiple servers.

Open Source 87

Open Source Storage Database Big Data 87

Percona

MARCH 23, 2023

Hardware Memory The amount of RAM to be provisioned for database servers can vary greatly depending on the size of the database and the specific requirements of the company. Some servers may need a few GBs of RAM, while others may need hundreds of GBs or even terabytes of RAM. Benchmark before you decide.

Performance 124

Performance Hardware Tuning Storage 124

VoltDB

MAY 2, 2017

We recently received a question from a customer who was looking for a quick way to repurpose some VoltDB production servers to create a disaster recovery site. Say you have five VoltDB servers in production, with k-factor=2, and no disaster site. You want to shift some of these servers to create a disaster recovery site.

Hardware 40

Hardware Database Servers Tuning 40

KeyCDN

SEPTEMBER 20, 2018

Back-End Error Tracking Back-end, or server-side, errors include things like page exceptions and JavaScript errors. Not all back-end errors affect the user experience, but keeping track of them can prove helpful when tuning your app. While lastly, APM allows you to gather data on server-side bottlenecks.

Strategy 67

Strategy Monitoring Website Google 67

KeyCDN

AUGUST 15, 2019

Before you begin tuning your website or application, you must first figure out which metrics matter most to your users and establish some achievable benchmarks. Bottlenecks can occur, for example, if you have a sudden surge in traffic that your servers are not equipped to handle. What is Performance Testing?

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Percona

AUGUST 29, 2018

Poorly configured OS kernel parameters can cause degradation in database server performance. Therefore, it is imperative that these parameters are configured according to the database server and its workload. vm.overcommit_ratio is the percentage of RAM that is available for overcommitment. SHMMAX / SHMALL. Reference: [link].

Tuning 55

Tuning Database Servers Processing 55

Percona

OCTOBER 18, 2023

These vendors often provide integrated stacks that include the database, application server, and other components that seamlessly integrate. Resource allocation: Personnel, hardware, time, and money The migration to open source requires careful allocation (and knowledge) of the resources available to you.

Open Source 91

Open Source Database Hardware Strategy 91

Abhishek Tiwari

JULY 12, 2018

Data Pipeline A data pipeline is a software that ingests data from multiple sources, transforms it and finally makes it available to internal or external products. A data pipeline is a software which runs on hardware. The software is error-prone and hardware failures are inevitable.

Latency 63

Latency Analytics Scalability Engineering 63

Dynatrace

JANUARY 26, 2021

This allows teams to sidestep much of the cost and time associated with managing hardware, platforms, and operating systems on-premises, while also gaining the flexibility to scale rapidly and efficiently. Every time the trigger executes, the function runs on an available resource. How does serverless computing tackle inefficiencies?

Serverless 244

Serverless Efficiency Lambda Azure 244

Dynatrace

SEPTEMBER 29, 2021

A standard Docker container can run anywhere, on a personal computer (for example, PC, Mac, Linux), in the cloud, on local servers, and even on edge devices. Running containers : Docker Engine is a container runtime that runs in almost any environment: Mac and Windows PCs, Linux and Windows servers, the cloud, and on edge devices.

Open Source 302

Open Source Traffic DevOps Cloud 302

O'Reilly

NOVEMBER 28, 2023

If we asked whether their companies were using databases or web servers, no doubt 100% of the respondents would have said “yes.” A year after the first web servers became available, how many companies had websites or were experimenting with building them? Until AI reaches 100%, it’s still in the process of adoption.

Open Source 108

Open Source Artificial Intelligence Google Infrastructure 108

SQL Performance

JANUARY 23, 2020

Tom Davidson, Opening Microsoft's Performance-Tuning Toolbox SQL Server Pro Magazine, December 2003. Waits and Queues has been used as a SQL Server performance tuning methodology since Tom Davidson published the above article as well as the well-known SQL Server 2005 Waits and Queues whitepaper in 2006.

Tuning 115

Tuning Servers Monitoring Hardware 115

Percona

JANUARY 4, 2024

Flexible location : Data files can reside within the MySQL data directory or an independent location, enabling finer control over storage management and performance tuning. mysql> mysql> pager grep -i keyring_file; PAGER set to 'grep -i keyring_file' mysql> SHOW PLUGINS; 50 rows in set (0.00

Storage 87

Storage Engineering Database Hardware 87

Percona

AUGUST 27, 2018

It is well hidden in the Optimization: Optimizing the MySQL Server chapter. Resource groups permit assigning threads running within MySQL to particular groups so that threads execute according to the resources available to this group. MySQL determines, at startup, how many virtual CPUs are available. Will this work? Conclusion.

Tuning 44

Tuning Virtualization Testing Servers 44

Dynatrace

AUGUST 12, 2020

Serverless computing is a computing model that “allows you to build and run applications and services without thinking about servers.”. Dynatrace is thrilled to announce the General Availability of support for both the 2.x So stay tuned! AI-powered observability and end-to-end tracing of serverless applications.

Serverless 236

Serverless Azure Monitoring Lambda 236

Dynatrace

NOVEMBER 20, 2019

Having released this functionality in an Early Adopter Release with OneAgent version 1.173 and Dynatrace version 1.174 back in August 2019, we’re now happy to announce the General Availability of OneAgent full-stack monitoring for Linux on the IBM Z platform, sometimes informally referred to as Z/Linux. Host-performance measures.

Availability 31

Availability Hardware Java Tuning 31

SQL Server According to Bob

JANUARY 11, 2020

Microsoft SQL Server I/O Basics Author: ​​ Bob Dorr, Microsoft SQL Server Escalation Published: ​​ December, 2004 SUMMARY: ​​ Learn the I/O requirements for Microsoft SQL Server database file operations. This will help you increase system performance and avoid I/O environment errors.

Servers 40

Servers Cache Media Hardware 40

Percona

APRIL 17, 2023

The main objective of this post is to share my experience over the past years tuning MongoDB and centralize the diverse sources that I crossed in this journey in a unique place. There is an issue with this, which causes the OS to swap even with memory available. Spoiler alert: This post focuses on MongoDB 3.6.X 25.84 - Total 21.04

Best Practices 52

Best Practices Design Tuning Database 52

Dynatrace

NOVEMBER 15, 2021

A log is a detailed, timestamped record of an event generated by an operating system, computing environment, application, server, or network device. Logs can include data about user inputs, system processes, and hardware states. What are logs? “Logging” is the practice of generating and storing logs for later analysis.

Analytics 209

Analytics Monitoring Artificial Intelligence DevOps 209

All Things Distributed

MARCH 19, 2018

Amazon SageMaker training supports powerful container management mechanisms that include spinning up large numbers of containers on different hardware with fast networking and access to the underlying hardware, such as GPUs. Post-training model tuning and rich states. This is impossible in the streaming setting.

Scalability 159

Scalability Hardware AWS Tuning 159

Dynatrace

AUGUST 8, 2019

We’re happy to announce the Early Adopter Release of OneAgent full-stack monitoring for Linux on the IBM Z platform, sometimes informally referred to as Z/Linux (available with OneAgent version 1.173 and Dynatrace version 1.174). For details on available metrics, see our help page on host performance monitoring.

Availability 25

Availability Hardware Java Tuning 25

SQL Server According to Bob

JANUARY 11, 2020

Microsoft, ​​ Windows, ​​ Windows NT, ​​ and Windows Server ​​ are registered trademarks of Microsoft Corporation in the United States and/or other countries. The names of actual companies and products mentioned herein may be the trademarks of their respective owners.

Servers 40

Servers Cache Database Media 40

Dynatrace

AUGUST 12, 2020

Serverless computing is a computing model that “allows you to build and run applications and services without thinking about servers.”. Dynatrace is thrilled to announce the General Availability of support for both the 2.x So stay tuned! AI-powered observability and end-to-end tracing of serverless applications.

Serverless 141

Serverless Azure Monitoring Lambda 141

SQL Performance

APRIL 27, 2020

Many of the newer features we have in SQL Server were initially launched in Azure SQL Database, including (but not limited to) Always Encrypted, Dynamic Data Masking, Row Level Security, and Query Store. Gen 5 is the primary hardware option now for most regions since Gen 4 is aging out. DTU Pricing Tier. GB per vCore.

Azure 55

Azure Database Serverless Hardware 55

All Things Distributed

MARCH 7, 2013

As I sat down with the DynamoDB team to review our progress over the last year, I realized that DynamoDB had surpassed even my own expectations for how easily applications could achieve massive scale and high availability with DynamoDB. DynamoDB runs on a fleet of SSD-backed storage servers that are specifically designed to support DynamoDB.

Ecommerce 139

Ecommerce Storage Scalability Hardware 139

Adrian Cockcroft

NOVEMBER 13, 2023

The carbon footprint of a large rack mounted server is order-of-magnitude a ton of carbon a year. I’ve written before about how to tune out retry storms. The first thing to understand is that doing things consumes time and energy and has a carbon footprint of its own.

Energy 52

Energy Cloud Traffic Transportation 52

Brendan Gregg

SEPTEMBER 25, 2021

This server is spending about a third of its CPU cycles just checking the time! As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Checking those available: $ cat /sys/devices/system/clocksource/clocksource0/available_clocksource.

Speed 126

Speed Java AWS Virtualization 126

HammerDB

FEBRUARY 25, 2021

When we have multiple CPU cores on both the benchmark client and database server it is crucial that these database sessions run independently of each other at the same time, in parallel. The following is an example from TPROC-C from SQL Server. and the following from TPROC-H. select top 100. where p_partkey = ps_partkey. Glue language.

Programming 67

Programming Benchmarking Virtualization C++ 67

Smashing Magazine

AUGUST 22, 2021

Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). This is one of the main reasons why content delivery networks (CDNs) exist: They place servers physically closer to the end user in order to reduce latency, and thus delay, as much as possible.

Performance 106

Performance Network Latency Servers 106

HammerDB

JANUARY 5, 2019

As the chart shows because we know that both HammerDB and the implementation of the TPC-C workload scales then we can determine that with this particular database engine both the software and hardware scales as well. If you only test your own application (and if you have more than one application which one will you use for benchmarking?)

Benchmarking 40

Benchmarking Database Social Media Scalability 40

Percona

AUGUST 5, 2023

KEY partitioning KEY partitioning is similar to HASH partitioning, except that only one or more columns to be evaluated are specified, and the MySQL server provides its own hashing function. This helps identify potential issues and fine-tune the partitioning strategy. Documentation : Always be documenting!

Strategy 40

Strategy Storage Database Best Practices 40

SQL Performance

MARCH 8, 2021

SQL Server 2014 SP2 and later produce runtime (“actual”) execution plans that can include elapsed time and CPU usage for each execution plan operator (see KB3170113 and this blog post by Pedro Lopes). SQL Server makes some timing adjustments in parallel plans to promote consistency, but they are not perfectly implemented. TheYear , CA.

Servers 95

Servers Tuning Architecture Processing 95

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

HammerDB

OCTOBER 12, 2018

As is also the case this limitation is at the database level (especially the storage engine) rather than the hardware level. Historically MySQL has been positioned for supporting web-based applications this is in contrast to enterprise based database workloads that have been served by commercial databases such as Oracle, Db2 and SQL Server.

Best Practices 40

Best Practices Scalability Performance C++ 40