Percona

APRIL 12, 2023

Let’s start with this: MongoDB is accurately referred to as source-available software. So if they can’t beat ‘em in the DBaaS space, they often feel like they have to join ‘em — to the tune of total stack sharing or some proprietary arrangement. MongoDB is commonly referred to as source-available software.

Open Source 81

Open Source Programming Database Servers 81

Adrian Cockcroft

JUNE 21, 2022

I was mostly coding in C, tuning FORTRAN, and when I needed to do a lot of data analysis of benchmark results used the S-PLUS statistics language, that is the predecessor to R. At one point we had two conflicting high availability products from different teams, who weren’t cooperating. He had it up and running on Wednesday.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Dynatrace

JANUARY 13, 2021

Dynatrace monitoring-as-code allows us to do just that – and what started around one year ago in a ‘Minimal Viable Product’ approach to cover our internal needs, is now available to all our customers as Open Source on GitHub. Stay tuned for an upcoming Performance Clinic ! and some sample configurations used for integration testing.

Open Source 139

Open Source Code Monitoring Azure 139

Percona

DECEMBER 20, 2018

Linux OS Tuning for MySQL Database Performance. In this post we will review the most important Linux settings to adjust for performance tuning and optimization of a MySQL database server. We’ll note how some of the Linux parameter settings used OS tuning may vary according to different system types: physical, virtual or cloud.

Database 40

Database Tuning Performance AWS 40

HammerDB

MAY 5, 2019

However as noted many factors affect spin-locks including how much time you actually spend in locks in the first place and therefore the best way to really determine how much time you have to spend in fine-tuning spin-locks in the real world can be done through testing. In the recent MySQL 8.0.16 mysqld] datadir=/home/mysql/mysql-8.0.16/mysql-8.0.16-linux-glibc2.12-x86_64/data

Testing 48

Testing Tuning Latency Storage 48

Apica

MAY 10, 2019

The Apica LoadTest solution uses innovative technologies like monitoring nodes and load clusters to reliably deliver and sustain a large-scale load of virtual users (VUs) to Hollywood for different, realistic user scenarios all at the same time. Our experts and platform will also give your IT organizations knowledge on when and how to test.

Testing 40

Testing Performance Social Media Wireless 40

Smashing Magazine

APRIL 11, 2022

However, developers with a deep understanding of the project may want to improve performance beyond that by doing some fine-tuning under the hood. This new attribute can be assigned to virtually any HTML element that loads some kind of resources like images and scripts and affects its relative priority. Jump to table of contents ?.

Media 70

Media Tuning Metrics Google 70

Dynatrace

MAY 28, 2024

Logs in context across Dynatrace Apps Infrastructure & Operations leverages advanced AI capabilities that automatically discover and map all components within your infrastructure, including hosts, virtual machines, containers, and cloud instances.

Analytics 130

Analytics Infrastructure Database Monitoring 130

Smashing Magazine

JUNE 3, 2022

And today, we still have type in a digital context, but it travels through cables, wirelessly on smartphones, and in virtual reality glasses in 3D. There are many typefaces, and many of them are very similar or are nearly identical to previous or contemporary versions available. Stay tuned! More Coming Up In Part 2.

Performance 111

Performance Design Best Practices Testing 111

Dynatrace

JANUARY 26, 2021

Traditional computing models rely on virtual or physical machines, where each instance includes a complete operating system, CPU cycles, and memory. VMware commercialized the idea of virtual machines, and cloud providers embraced the same concept with services like Amazon EC2, Google Compute, and Azure virtual machines.

Serverless 244

Serverless Efficiency Lambda Azure 244

Percona

APRIL 7, 2023

If we were to select the most important MySQL setting, if we were given a freshly installed MySQL or Percona Server for MySQL and could only tune a single MySQL variable, which one would it be? MySQL comes pre-configured to be conservative instead of making the most of the resources available in the server. Why is that?

Tuning 135

Tuning Cache Servers Benchmarking 135

Percona

AUGUST 27, 2018

Essentially, you can assign a thread to a specific virtual CPU. 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. Let us start with a disclaimer.

Tuning 44

Tuning Virtualization Testing Servers 44

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. If tuned for performance, there is a good change reliability is compromised - and vice versa. Generally speaking, data pipelines are leaky by nature.

Latency 63

Latency Analytics Scalability Engineering 63

The Netflix TechBlog

AUGUST 17, 2023

Finding moments from a virtual setting in the title or the actual filming location required a visual scan of all episodes of a title. Each algorithm needed a process of evaluation and tuning to get great results in AVA Discovery View. This information is available both at individual and aggregated levels for our algorithm partners.

Media 169

Media Scalability Architecture Strategy 169

Dynatrace

DECEMBER 22, 2019

After being available in an Early Adopter Release, we’re happy to announce that AWS supporting services are now Generally Available (GA). Supporting services include every service that isn’t available with out-of-the-box Dynatrace monitoring. Stay tuned for updates in Q1 2020. Updated AWS monitoring policy. Configuration.

AWS 136

AWS Metrics IoT Storage 136

Dynatrace

DECEMBER 22, 2019

After being available in an Early Adopter Release, we’re happy to announce that AWS supporting services are now Generally Available (GA). Supporting services include every service that isn’t available with out-of-the-box Dynatrace monitoring. Stay tuned for updates in Q1 2020. Updated AWS monitoring policy. Configuration.

AWS 133

AWS Metrics IoT Storage 133

Dynatrace

JULY 6, 2022

Virtualization has revolutionized system administration by making it possible for software to manage systems, storage, and networks. Design, implement, and tune effective SLOs. Organizations should seek to standardize a single set of tools that everyone will use. This number will likely increase as the SRE discipline matures.

Best Practices 187

Best Practices Open Source Tuning Infrastructure 187

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). Checking those available: $ cat /sys/devices/system/clocksource/clocksource0/available_clocksource. This was much worse many years ago on Xen virtual machine guests.

Speed 126

Speed Java AWS Virtualization 126

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

The Netflix TechBlog

AUGUST 29, 2023

Since there were no existing solutions available, we needed to build them ourselves. To improve availability, we designed systems where components could fail separately and avoid single points of failure. This is the first in a series of posts on our journey to service mesh, so stay tuned.

Traffic 220

Traffic Latency Cloud C++ 220

Dynatrace

NOVEMBER 18, 2019

For example, you might want Dynatrace to treat a group of hosts in a load-balancer environment as a single virtual host. Today, we’re happy to announce that this solution is Generally Available as of OneAgent version 1.179. Stay tuned for more announcements on this topic. What’s new in the GA release?

Tuning 143

Tuning Virtualization Monitoring Infrastructure 143

Dynatrace

JULY 8, 2020

A container (or a pod) running on a node may eat up all the available CPU or memory and affect all other pods on the node, degrading performance (or worse) and preventing any new workload to be scheduled on the node. By default, containers run with unbounded limits. Node and w orkload health . But of course, there are many others. .

Infrastructure 198

Infrastructure Monitoring Cloud Metrics 198

Dynatrace

NOVEMBER 4, 2019

In fact, once containerized, many of these services and the source code itself is virtually invisible in a standalone Kubernetes environment. And if they actually are discovered, would most likely require some manual “fine-tuning” or instrumentation given the diversity of any given Microservices environment.

Monitoring 217

Monitoring Cloud Metrics Code 217

O'Reilly

NOVEMBER 28, 2023

A year after the first web servers became available, how many companies had websites or were experimenting with building them? Second, while OpenAI’s GPT-4 announcement last March demoed generating website code from a hand-drawn sketch, that capability wasn’t available until after the survey closed. Certainly not two-thirds of them.

Open Source 108

Open Source Artificial Intelligence Google Infrastructure 108

Dynatrace

NOVEMBER 10, 2022

Application development platforms live in the cloud and are always available. Cloud platforms are fully virtualized and, consequently, highly automated. Infrastructure is provisioned and modified in code, eliminating much of the need for manual installation and tuning. Deployment is fast and global.

Cloud 162

Cloud Architecture Serverless Infrastructure 162

HammerDB

FEBRUARY 25, 2021

To benchmark a database we introduce the concept of a Virtual User. We could use processes, however given we may want to create hundreds or thousands of virtual users multithreading is the best approach to implement a Virtual User. Basic Benchmarking Concepts. The Python GIL. Tcl Multithreading in parallel.

Programming 67

Programming Benchmarking Virtualization C++ 67

Tasktop

MAY 24, 2021

The European leg of the DevOps Enterprise (Virtual) Summit 2021 returned last week (17-20 May) as the community reflected on a year like none other. There was plenty of positivity in the (virtual) air as speakers and attendees shared stories of heart, ingenuity, courage and resilience.

DevOps 91

DevOps Metrics Healthcare Innovation 91

Dynatrace

FEBRUARY 25, 2021

To handle N parallel requests, N Lambda instances need to be available, and AWS will spin up up to 1000 such instances automatically to handle 1000 parallel requests. A cold start occurs when there’s no instance of the requested Lambda function available. The virtual CPU is turned off. Stay tuned?for functionality?in

Lambda 219

Lambda AWS Monitoring Serverless 219

Adrian Cockcroft

NOVEMBER 13, 2023

However if you have a containerized workload that you are measuring with Kepler , or a cloud instance based workload that is running in virtual machines, you measure your carbon footprint based on how many and how big the containers and instances are, and how busy their CPUs are. I’ve written before about how to tune out retry storms.

Energy 52

Energy Cloud Traffic Transportation 52

Dynatrace

NOVEMBER 4, 2019

In fact, once containerized, many of these services and the source code itself is virtually invisible in a standalone Kubernetes environment. And if they actually are discovered, would most likely require some manual “fine-tuning” or instrumentation given the diversity of any given Microservices environment.

Monitoring 100

Monitoring Cloud Metrics Code 100

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). Over the years, more and more articles have been published about clocksource in virtual machines, and it's now a well-known issue.

Speed 40

Speed Java AWS Virtualization 40

Dynatrace

OCTOBER 22, 2019

A scalable architecture needs to distribute work across many threads in order to facilitate all the CPUs of a physical or virtual machine. On this page, the difference from a typical thread dump becomes obvious: the data is continuously available, with historical context, and doesn’t need to be triggered if a problem occurs.

Java 103

Java Scalability Hardware Architecture 103

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. Durable and Highly-Available – DynamoDB maintains data durability and 99.99

Internet 128

Internet Internet AWS Performance 128

SQL Performance

APRIL 27, 2020

Fast forward a few years after Azure SQL Database was released to when Azure SQL Managed Instance was in public preview, and "vCores" (virtual cores) were announced for Azure SQL Database. Microsoft took that idea and built a new compute tier called Azure SQL Database serverless, which became generally available in November 2019.

Azure 55

Azure Database Serverless Hardware 55

Brendan Gregg

FEBRUARY 9, 2018

In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. virtual (bgregg-c5.9xl-i-xxx) 02/09/2018 _x86_64_ (36 CPU) 05:24:51 PM proc/s cswch/s. Many thanks to the engineers working hard to develop workarounds to these processor bugs.

Performance 75

Performance Benchmarking Cache Tuning 75

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

JANUARY 5, 2019

“ Scalability” is a product of both the benchmarking application itself (See the post on HammerDB Architecture to see how it scales implementing multiple virtual users as threads) as well as the benchmarking workload (The TPC benchmarks that HammerDB uses have been designed specifically for this purpose and proven over decades to scale).

Benchmarking 40

Benchmarking Database Social Media Scalability 40