Brendan Gregg

MARCH 16, 2024

The problem is that this system has a default libc that has been compiled without frame pointers, so any stack walking stops at the libc layer, producing a partial stack that's missing the application frames. Back-end servers. This is pretty common and usually goes unnoticed as the flame graph looks ok at first glance.

Java 145

Java Cache Google Hardware 145

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. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. How long does it take to read the time?

Speed 126

Speed Java AWS Virtualization 126

Dynatrace

AUGUST 11, 2022

Cloud providers then manage physical hardware, virtual machines, and web server software management. The FaaS model of cloud computing debuted in 2014 with startups like hook.io. This code is then executed on remote servers in response to an event, such as users interacting with functional web elements.

Development 260

Development Serverless Best Practices Lambda 260

Dynatrace

MAY 31, 2021

Since Kubernetes emerged in 2014, it has become a popular solution for scaling, managing, and automating the deployments of containerized applications in distributed environments. Although Kubernetes simplifies application development while increasing resource utilization, it is a complex system that presents its own challenges.

Virtualization 134

Virtualization DevOps Infrastructure Cloud 134

Brendan Gregg

NOVEMBER 28, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. It's an exciting development in cloud computing: hardware virtualization is now fast. Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds.

Virtualization 40

Virtualization AWS Hardware Storage 40

SQL Performance

JUNE 21, 2019

I've been teaching and writing about common SQL Server mistakes for many years. This article will expand on my previous article and point out how these apply to SQL Server , Azure SQL Database , and Azure SQL Managed Instance. SQL Server Agent alerts. I always check backups first when looking at a new system. Statistics.

Servers 49

Servers Azure Hardware Database 49

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. These AMD EPYC processors have a number of advantages for SQL Server workloads, as I will explain in this article. Since then, Microsoft has changed the naming of this series to Lsv2.

Azure 42

Azure Virtualization Storage Benchmarking 42

Sutter's Mill

MARCH 11, 2024

We must make our software infrastructure more secure against the rise in cyberattacks (such as on power grids, hospitals, and banks), and safer against accidental failures with the increased use of software in life-critical systems (such as autonomous vehicles and autonomous weapons). The C++ community has not done so.

C++ 139

C++ Programming Code Java 139

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. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. How long does it take to read the time?

Speed 52

Speed Java AWS Virtualization 52

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. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. How long does it take to read the time?

Speed 40

Speed Java AWS Virtualization 40

Dynatrace

FEBRUARY 25, 2021

Since its introduction by AWS in 2014, AWS Lambda has revolutionized the compute space and boosted the entire serverless movement. The virtual CPU is turned off. Lambda functions often serve as a gluing tier or a gateway from on-premises systems to AWS services; they’re almost never standalone. Dynatrace news. What’s next.

Lambda 228

Lambda AWS Monitoring Serverless 228

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

Enprowess

JANUARY 11, 2022

Web apps allow you to break the traditional constraints of the desktop and mobile operating systems and provide freedom to experiment with different varieties of software. React got popular due to the virtual document object model (DOM) which enables it to enhance performance of web apps and PWA significantly. And we can’t deny that.

Virtualization 64

Virtualization Website Speed Mobile 64

KeyCDN

OCTOBER 10, 2018

Although a beta version was released in 2014, the first stable release of Kubernetes was just made available in September 2018. That’s why Google set out to develop an open source system that would simplify the “deployment, scaling and operations” of containerized applications across multiple hosts.

Virtualization 47

Virtualization Open Source Network Architecture 47

Enprowess

SEPTEMBER 28, 2021

The presence of virtual DOM and SPA are the key influencing USPS of React JS. Inferno JS would be your best option, if you would like to build client and server-side interfaces with faster speeds, better performance, and isomorphic rendering. . You will get add-ons like server-side rendering, routing and more. Inferno Pros.

Open Source 52

Open Source Mobile Entertainment Virtualization 52

Enprowess

SEPTEMBER 20, 2021

Created by Evan You, Vue had its first public appearance in 2014. Like React, Vue features two-way binding, uses components and a virtual DOM. They use lazy loading to extend performance rates and reduce loading times and code refreshes via virtual DOMs. It expands on many concepts found in React and Angular. What is React?

Open Source 52

Open Source Mobile Scalability Google 52

Brendan Gregg

AUGUST 8, 2017

Linux load averages are "system load averages" that show the running thread (task) demand on the system as an average number of running plus waiting threads. This measures demand, which can be greater than what the system is currently processing. then your system is idle. - cat /proc/loadavg. 42/3411 43603. 42/3411 43603.

Latency 111

Latency Metrics C++ Systems 111

SQL Server According to Bob

DECEMBER 31, 2018

How It Works: XEvent Output and Visualization SQL Server Management Studio Provides–“XE Profiler” Use the SSMS XEvent Profiler. Using SQL Server Management Studio (SSMS) and storing the events in a table requires reading the events, streaming to table storage followed by an order by event sequence query. TSQL Sample Session.

Efficiency 40

Efficiency Code Servers Cache 40