Brendan Gregg

DECEMBER 31, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. Virtual Memory. We help where we can. schedtool –B PID.

Tuning 61

Tuning AWS Best Practices Network 61

Alex Podelko

OCTOBER 20, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. Cloud seriously impacts system architectures that has a lot of performance-related consequences. Mitigating performance risks moves to SaaS vendors.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

Brendan Gregg

DECEMBER 30, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. Virtual Memory. We help where we can. schedtool –B PID.

Tuning 52

Tuning AWS Best Practices Network 52

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? To be fair, that is also true with PostgreSQL; it hasn’t been tuned either, and it, too, can also perform much better.

Tuning 136

Tuning Cache Servers Benchmarking 136

DZone

JULY 10, 2019

Alluxio is leveraged as compute-side virtual storage to improve performance. But to get the best performance, like any technology stack, you need to follow the best practices. High data locality can greatly improve the performance of Spark jobs. A Note on Data Locality. The first few tips are related to locality.

Best Practices 138

Best Practices Latency Storage Tuning 138

Dynatrace

APRIL 26, 2022

Understanding why a user is experiencing transactional or performance issues enables organizations to achieve greater observability that goes beyond metrics, traces and logs. PC, smartphone, server) or virtual (virtual machines, cloud gateways). Endpoint monitoring (EM). Endpoints can be physical (i.e.,

Monitoring 203

Monitoring Social Media IoT Metrics 203

Dynatrace

JULY 6, 2022

Virtualization has revolutionized system administration by making it possible for software to manage systems, storage, and networks. By removing physical dependencies, automation can help perform SRE at scale. Design, implement, and tune effective SLOs. This number will likely increase as the SRE discipline matures.

Best Practices 187

Best Practices Open Source Tuning Infrastructure 187

Percona

AUGUST 27, 2018

Essentially, you can assign a thread to a specific virtual CPU. assigning to a specific CPU) is a manageable resource, represented by the concept of “virtual CPU” as a term that includes CPU cores, hyperthreads, hardware threads, and so forth. MySQL determines, at startup, how many virtual CPUs are available. bin/mysqld./bin/mysqld

Tuning 45

Tuning Virtualization Testing Servers 45

Dynatrace

APRIL 20, 2020

Issues that manifest themselves as performance degradation on a user’s device can often be traced back to underlying infrastructure issues. With Dynatrace Infrastructure Monitoring you get a complete solution for the monitoring of cloud platforms and virtual infrastructure, along with log monitoring and AIOps. announcements.

Infrastructure 151

Infrastructure Metrics Java Virtualization 151

Percona

JUNE 2, 2023

Then you might need to delve into MySQL tuning and replicas. Not because MySQL wasn’t performant but because the out-of-the-box defaults weren’t adequate for heavy traffic. With a little tuning, though, MySQL could hold its own. MySQL was performant enough to support heavily trafficked blogs and websites.

Open Source 97

Open Source Traffic Tuning Database 97

Dynatrace

NOVEMBER 10, 2022

Although redesigning applications sounds daunting, understanding how these architectures work will enable your organization to reap the performance and cost benefits of cloud hyperscalers. These loosely coupled, lightweight services typically perform a single function and can be chained together into an application. Microservices.

Cloud 162

Cloud Architecture Serverless Infrastructure 162

Dynatrace

APRIL 22, 2022

In a session at Dynatrace Perform 2022, Kopp joins Tim Gerlach, Product Owner of APM at SAP Business Platform to describe how. Dynatrace created an OpenTelemetry Collector Exporter to allow customers to collect data from virtually any source and integrate it into their Dynatrace platform.

Open Source 173

Open Source Metrics Cloud Tuning 173

Dynatrace

AUGUST 28, 2020

Manual tasks like shutting down virtual machines in bulk or creating database backups can be error prone. Understand the performance and status of Azure Logic Apps workflows. We’ll release additional monitoring support for new services soon, so stay tuned for further updates. What’s next?

Azure 155

Azure Cloud Tuning Monitoring 155

Smashing Magazine

JUNE 3, 2022

Measuring The Performance Of Typefaces For Users (Part 1). Measuring The Performance Of Typefaces For Users (Part 1). How well does a typeface work and perform against another similar typeface? Reasons To Measure The Performance Of Typefaces? Measuring Typefaces And The Resulting Performance Data. Thomas Bohm.

Performance 112

Performance Design Best Practices Testing 112

Percona

DECEMBER 20, 2018

Let’s look at some of the most popular Percona Database Performance Blog posts in 2018. With the Percona Database Performance Blog, Percona staff and leadership work hard to provide the open source community with insights, technical support, predictions and metrics around multiple open source database software technologies.

Database 40

Database Tuning Performance AWS 40

Smashing Magazine

FEBRUARY 2, 2022

Improving JavaScript Bundle Performance With Code-Splitting. Improving JavaScript Bundle Performance With Code-Splitting. Before delving into details about code-splitting, let’s quickly remind ourselves what makes JavaScript so impactful on overall performance. Performance Costs. Adrian Bece. 2022-02-02T10:30:00+00:00.

Code 90

Code Performance Network Website 90

Adrian Cockcroft

AUGUST 1, 2022

photo by Adrian I gave a talk at Monitorama in Portland Oregon in June, which set out the idea that carbon is just another metric to monitor, and that in a few years most of the monitoring and performance tuning tools are going to be reporting and optimizing for carbon alongside latency, throughput, availability and cost.

AWS 52

AWS Virtualization DevOps Latency 52

Scalegrid

OCTOBER 17, 2019

These sit between the database and the clients, sometimes on a seperate server (physical or virtual) and sometimes on the same box, and create a pool that clients can connect to. It creates yet another component that must be maintained, fine tuned for your workload, security patched often, and upgraded as required.

Architecture 200

Architecture Database Latency Servers 200

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. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 126

Speed Java AWS Virtualization 126

Apica

MAY 10, 2019

The spread of where consumers want to consume content, at home, at the office, at the gym, on a plane, at any time where there is connectivity, puts significant pressure on the network and performance monitoring teams for streaming brands. Consumers will leave you for slow or intermittent performance because there are other content options.

Testing 40

Testing Performance Social Media Wireless 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. For bare metals, any algorithm among deadline or noop (the performance difference between them is imperceptible) will be better than CFQ.

Best Practices 52

Best Practices Design Tuning Database 52

Dynatrace

NOVEMBER 4, 2019

As Dynatrace is a leader in Cloud monitoring, we have architected our Software Intelligence Platform specifically to complement Kubernetes by providing extensive functionality to tame the complexities and prevent performance issues that can occur across the development and deployment cycles. Impact to real users and business KPIs.

Monitoring 217

Monitoring Cloud Metrics Code 217

Brendan Gregg

FEBRUARY 9, 2018

The recently revealed [Meltdown and Spectre] bugs are not just extraordinary issues of security, but also performance. The patches that workaround Meltdown introduce the largest kernel performance regressions I've ever seen. Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar.

Performance 75

Performance Benchmarking Cache Tuning 75

HammerDB

OCTOBER 18, 2019

Nevertheless in this blog sometimes we do publish performance data to highlight best practices or potential configuration pitfalls and although we’ve mentioned this one before it is worth dedicating an entire post to it as this issue seems to appear numerous times running database workloads on Linux. hardware limits: 1000 MHz - 4.00

Benchmarking 63

Benchmarking Performance Hardware C++ 63

Percona

FEBRUARY 27, 2019

Processors | physical = 2, cores = 28, virtual = 56, hyperthreading = yes. does not perform as well as MySQL 5.7.25 If you plan to use utf8mb4_unicode_ci, you will get an even further performance hit (comparing to utf8mb4_general_ci ). In this workload there is NO IO operations, only memory and CPU operations. My Testing Setup.

Performance 84

Performance Virtualization Testing Tuning 84

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. Rich became co-author of the second edition of the Sun Performance Tuning book, to describe how it worked.

Tuning 52

Tuning Benchmarking Engineering C++ 52

HammerDB

JULY 14, 2021

As noted previously, we’ve added a my.cnf file to the MariaDB directory and tuned this for performance rather than resilience. (A A future blog post on performance profiles will explain why this is a good first test on which to baseline other changes). Checking database library for MariaDB Success. puts "MariaDB 10.2.34

Testing 57

Testing C++ Virtualization Tuning 57

Dynatrace

FEBRUARY 25, 2021

We’re talking about a few hundred milliseconds, but this can have a considerable performance impact when cold starts occur too often. The virtual CPU is turned off. The result is overall performance metrics that provide valuable insights into how a function is performing regardless of the instance that handles the request.

Lambda 218

Lambda AWS Monitoring Serverless 218

MachMetrics

SEPTEMBER 5, 2019

Here are how his 7 habits apply to high performance websites. Too many times, the performance of our website is only something that we consider once we realize that there’s a problem with it. All of the above examples will require different tactics to ensure optimal performance. Be proactive. Begin with an end in mind.

Website 48

Website Performance Speed Design 48

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. When Kubernetes perform autoscaling (up/down) and on what. By default, containers run with unbounded limits.

Infrastructure 198

Infrastructure Monitoring Cloud Metrics 198

Dynatrace

OCTOBER 22, 2019

This is why threads are often the source of scalability as well as performance issues. Identify and solve performance bottlenecks faster with continuous thread analysis. You can thereby identify and solve performance bottlenecks faster in your application. Dynatrace news. Use case #1: Identify scalability issues.

Java 103

Java Scalability Hardware Architecture 103

HammerDB

FEBRUARY 25, 2021

On high-performance multi-core systems all the supported databases can return performance in the many millions of transactions per minute. This post explains why HammerDB made the language decisions it made to make it the best performing and most usable database benchmarking software. Basic Benchmarking Concepts. The Python GIL.

Programming 67

Programming Benchmarking Virtualization C++ 67

HammerDB

MAY 5, 2019

So the PAUSE instruction is an optimization over NOP when a thread is waiting to acquire a lock and is particularly important in spin-locks on x86 CPUs for power and performance. ” and “as the PAUSE latency has been increased significantly, workloads that are sensitive to PAUSE latency will suffer some performance loss.”

Testing 48

Testing Tuning Latency Storage 48

HammerDB

OCTOBER 12, 2018

This post complements the previous best practice guides this time with the focus on MySQL and MariaDB and achieving top levels of performance with the HammerDB MySQL TPC-C test. As is exactly the same with PostgreSQL for system choice a 2 socket system is optimal for MySQL OLTP performance. hardware limits: 1000 MHz - 3.80

Best Practices 40

Best Practices Scalability Performance C++ 40

Dynatrace

JANUARY 13, 2021

Stay tuned for an upcoming Performance Clinic ! Monitoring as Code will also be featured at Perform 2021 with a Breakout session and a dedicated virtual hands-on training ! For more information on what Monaco can do take a look the README.me and some sample configurations used for integration testing.

Open Source 139

Open Source Code Monitoring Azure 139

n0derunner

MARCH 7, 2019

Since I am interested in only the gains from hugepages I chose to use the “-S” parameter to pgbench which means perform only the “select” statements. Then reboot the kernel I used these excellent resources How to modify the kernel command line How to enable hugepages and this great video on Linux virtual memory.

Performance 40

Performance Benchmarking C++ Virtualization 40

Brendan Gregg

FEBRUARY 8, 2018

The recently revealed [Meltdown and Spectre] bugs are not just extraordinary issues of security, but also performance. The patches that workaround Meltdown introduce the largest kernel performance regressions I've ever seen. Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar.

Performance 40

Performance Benchmarking Cache Tuning 40