Desupport of monitoring for legacy 32-bit operating systems

Dynatrace

We’re continuously working to support the most popular operating systems with high quality OneAgent deployment options. Of course, it’s possible to run a legacy 32-bit application on a 64-bit operating system. Dynatrace news.

MySQL Memory Management, Memory Allocators, and Operating System

DZone

performance mysql memory operating system bug memory management memory allocatorsWhen users experience memory usage issues with any software, including MySQL, their first response is to think that it’s a symptom of a memory leak. As this story will show, this is not always the case. This story is about a bug.

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Back-to-Basics Weekend Reading - Virtualizing Operating Systems.

All Things Distributed

Werner Vogels weblog on building scalable and robust distributed systems. Back-to-Basics Weekend Reading - Virtualizing Operating Systems. This weekends back-to-basics reading is on operating system virtualization. There are two papers that deserve the "classic" tag as they both form the basis for operating system virtualization that is in production today. All Things Distributed.

How to Kill Processes in Unix/Linux

DZone

There are different options to terminate a process in Unix/Linux flavor of operating systems. java open source devops command line operating systems linux operating system linux tools/utilities system admin unix operating system unix osThis article intends to list and provide examples of each option. You can use the kill command to terminate a process by passing the process id.

Load Average: An Indicator for Only CPU Demand?

DZone

‘ Load Average ‘ is an age-old metric reported in various operating systems. When you launch BuggyApp with the following arguments, it will cause high disk I/O operations on the host. tutorial linux operating system performance engineering memory allocation system admin unix operating system cpu memory usage cpu optimizationIt’s often assumed as a metric to indicate the CPU demand only. However, that is not the case.

Different CPU Times: Unix/Linux ‘top’

DZone

CPU consumption in Unix/Linux operating systems is studied using eight different metrics: User CPU time, System CPU time, nice CPU time, Idle CPU time, Waiting CPU time, Hardware Interrupt CPU time, Software Interrupt CPU time, Stolen CPU time. User CPU Time and System CPU Time. In order to understand ‘user’ CPU Time, one should understand ‘system’ CPU time as well, since they go hand in hand. This will be accounted as ‘system’ CPU time.

Software Interrupt Time – ‘si’ Time in top

DZone

CPU consumption in Unix/Linux operating systems is studied using eight different metrics: User CPU time , System CPU time , nice CPU time , Idle CPU time , Waiting CPU time , Hardware Interrupt CPU time , Software Interrupt CPU time , Stolen CPU time. Software interrupts can be triggered because of the following events: tutorial unix-linux performance cpu operating system root cause analysis unix operating system linux os cpu memory usage cpu optimization

Ginseng: keeping secrets in registers when you distrust the operating system

The Morning Paper

Ginseng: keeping secrets in registers when you distrust the operating system Yun & Zhong et al., Suppose you did go to the extreme length of establishing an unconditional root of trust for your system, even then, unless every subsequent piece of code you load is also fully trusted (e.g., In doing so, the app assumes that the operating system (OS) is trustworthy.

Everything you ever wanted to know about Dynatrace OS support policies

Dynatrace

Do you keep an eye on the support of distributions and versions of operating systems within your environment? With this information, you can find answers to questions such as: Which operating systems and versions does Dynatrace support? Dynatrace news.

nice CPU Time – ‘ni’ Time in top

DZone

CPU consumption in Unix/Linux operating systems are studied using 8 different metrics: User CPU time , System CPU time , nice CPU time , Idle CPU time , Waiting CPU time , Hardware Interrupt CPU time , Software Interrupt CPU time , and Stolen CPU time. In Unix/Linux operating systems, processes are launched with a priority 0 (default).

Firecracker: lightweight virtualization for serverless applications

The Morning Paper

Uncategorized Containers Operating SystemsFirecracker: lightweight virtualisation for serverless applications , Agache et al., NSDI’20. Finally the NSDI’20 papers have opened up to the public (as of last week), and what a great looking crop of papers it is.

Software-defined far memory in warehouse scale computers

The Morning Paper

” This paper describes a “far memory” system that has been in production deployment at Google since 2016. With a far memory tier in place operators can choose between packing more jobs onto each machine, or reducing the DRAM capacity, both of which lead to TCO reductions. The key to an efficient system is the identification of cold pages: the cold age threshold determines how many seconds we can go without a page being accessed before it is declared cold.

A tale of two abstractions: the case for object space

The Morning Paper

The global object space contains all objects (potentially across multiple systems), allowing persistent pointers to refer to data with long lifetimes and giving software the ability to operate directly on persistent structures. Uncategorized Operating Systems

A persistent problem: managing pointers in NVM

The Morning Paper

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. This means that the overheads of system calls become much more noticeable. " Uncategorized Hardware Operating Systems

PostgreSQL vs. Oracle: Difference in Costs, Ease of Use & Functionality

Scalegrid

Oracle Database is a commercial, proprietary multi-model database management system produced by Oracle Corporation, and the largest relational database management system (RDBMS) in the world. Supported Operating Systems.

CheriABI: enforcing valid pointer provenance and minimizing pointer privilege in the POSIX C run-time environment

The Morning Paper

abstract capabilities are constructed only through legitimate provenance chains of operations, successively reducing permissions from initial maximally permissive capabilities provided at machine reset. And this all has to work for whole-system executions, not just the C-language portion of user processes. The MIPS rows show the test suite results on a standard mips64 system. faster for system calls). Uncategorized Operating Systems Security

C++ 54

Compress objects, not cache lines: an object-based compressed memory hierarchy

The Morning Paper

Uncategorized Hardware Operating SystemsCompress objects, not cache lines: an object-based compressed memory hierarchy Tsai & Sanchez, ASPLOS’19. Last time out we saw how Google have been able to save millions of dollars though memory compression enabled via zswap. One of the important attributes of their design was easy and rapid deployment across an existing fleet.

Cache 54

A case for lease-based, utilitarian resource management on mobile devices

The Morning Paper

LeaseOS borrows the concept of a lease from distributed systems, but with a rather nice twist, and is able to reduce power wastage by 92% with no disruption to application experience and no changes required to the apps themselves. Android’s Doze mode defers app background CPU and network activity when the device is unused for a long time, but is very conservative in when it triggers as it is a system-wide mode. Uncategorized mobile Operating Systems

Time protection: the missing OS abstraction

The Morning Paper

Just as today’s systems offer memory protection, they call this time protection. The paper focuses on two key use cases: A confined component running in its own security domain, connected to the rest of the system by explicit (e.g. “ To avoid the interconnect channel, we have to assume the system either runs on a single core (at least while the sensitive code is executing), or co-schedules domains across the core, such that at any time only one domain executes.

Back-to-Basics Weekend Reading - Using continuations to.

All Things Distributed

Werner Vogels weblog on building scalable and robust distributed systems. Back-to-Basics Weekend Reading - Using continuations to implement thread management and communication in operating systems. During the nineties much operating systems research focussed on microkernels , which resulted in a large collection of prototype systems: Mach 3.0, Dean, Proceedings of the thirteenth ACM symposium on Operating systems principles Pages 122-136.

AWS Elastic Beanstalk: A Quick and Simple Way into the Cloud - All.

All Things Distributed

Werner Vogels weblog on building scalable and robust distributed systems. Flexibility is one of the key principles of Amazon Web Services - developers can select any programming language and software package, any operating system, any middleware and any database to build systems and applications that meet their requirements. All Things Distributed. AWS Elastic Beanstalk: A Quick and Simple Way into the Cloud. By Werner Vogels on 18 January 2011 04:00 PM. Permalink.

How to Deploy MySQL on Ubuntu and Fully Managed

Scalegrid

operating system, as well as by using ScaleGrid’s managed database service. In this blog post, we will show you a step-by-step guide on how to install and set up a MySQL server both manually on the Ubuntu 20.04

Dynatrace Managed release notes version 1.246

Dynatrace

Operating systems support. We’re informing you that Dynatrace Managed version 1.250 is going to be the last one that you can upgrade to on the unsupported operating systems. Dynatrace news. New features and enhancements. Centos 6.x, Red Hat Enterprise Linux 6.x,

OneAgent release notes version 1.227

Dynatrace

Operating systems. Future Dynatrace OneAgent operating systems support changes. The following operating systems will no longer be supported starting 01 December 2021. The following operating systems will no longer be supported starting 01 February 2022.

OneAgent release notes version 1.231

Dynatrace

Operating systems. Future Dynatrace OneAgent operating systems support changes. The following operating systems will no longer be supported starting 01 March 2022. The following operating systems will no longer be supported starting 01 April 2022.

What Is Configuration Testing in Software Testing?

DZone

It helps to understand whether a program can be used on any operating system other than the one for which it was designed. Configuration testing plays a critical part in the development life cycle by specifying the quality and portability of software.

How to Choose Mobile Devices for Testing in 2022

DZone

With the rapidly increasing popularity and complexity of mobile apps, you need to make sure your app works as intended across various device models, operating systems, and browsers.

Mobile 131

OneAgent release notes version 1.217

Dynatrace

Operating systems. Current Dynatrace OneAgent operating systems support changes. The following operating systems will no longer be supported starting 01 July 2021. Future Dynatrace OneAgent operating systems support changes. Dynatrace news.

OneAgent release notes version 1.241

Dynatrace

Operating systems. Future Dynatrace OneAgent operating systems support changes. The following operating systems will no longer be supported starting 01 July 2022. The following operating systems will no longer be supported starting 01 August 2022.

OneAgent release notes version 1.233

Dynatrace

Future Dynatrace OneAgent operating systems support changes. The following operating systems will no longer be supported starting 01 March 2022. The following operating systems will no longer be supported starting 01 April 2022. Dynatrace news.

How to Run Parallel Tests With CircleCI

DZone

Most tests validating website or app functionality must be rerun on different platforms (devices, browsers, operating systems). More often than not, testers have to deal with a large codebase comprising hundreds or even thousands of tests.

OneAgent release notes version 1.237

Dynatrace

Operating systems. Future Dynatrace OneAgent operating systems support changes. The following operating systems will no longer be supported starting 01 June 2022. The following operating systems will no longer be supported starting 01 July 2022.

Dynatrace Managed release notes version 1.244

Dynatrace

Operating systems support. We’re informing you that Dynatrace Managed version 1.250 is going to be the last one that you can upgrade to on the unsupported operating systems. Dynatrace news. New features and enhancements. Centos 6.x, Red Hat Enterprise Linux 6.x,

How to Perform Load Testing Against Nebula Graph With K6

DZone

The load testing for the database needs to be conducted usually so that the impact on the system can be monitored in different scenarios, such as query language rule optimization, storage engine parameter adjustment, etc. The operating system in this article is the x86 CentOS 7.8.

Native vs. Cross Platform: Decoding Best Choice for Your App Development

Simform

Native applications benefit the operating system's features and development environment. On the contrary, cross-platform apps help reduce time to market and costs. So, which one to choose?

How To Get Started With Automated Browser Testing?

DZone

This makes cross-browser testing extremely important as it lets you compare the functionalities and design of a website on multiple browsers, devices, and platforms (operating systems).

OneAgent release notes version 1.221

Dynatrace

Future Dynatrace OneAgent operating systems support changes. The following operating systems will no longer be supported starting 01 October 2021. The following operating systems will no longer be supported starting 01 December 2021. Dynatrace news.

OneAgent release notes version 1.205

Dynatrace

Current Operating systems support changes. The following operating systems will no longer be supported starting 01 December 2020. Upcoming Operating systems support changes. The following operating systems will no longer be supported starting 01 January 2021. The following operating systems will no longer be supported starting 01 February 2021. The following operating systems will no longer be supported starting 01 May 2021.

OneAgent release notes version 1.229

Dynatrace

Operating systems. Future Dynatrace OneAgent operating systems support changes. The following operating systems will no longer be supported starting 01 February 2022. The following operating systems will no longer be supported starting 01 March 2022.

OneAgent release notes version 1.201

Dynatrace

Operating systems. Upcoming Operating systems support changes. The following operating systems will no longer be supported starting 01 November 2020. The following operating systems will no longer be supported starting 01 December 2020. The following operating systems will no longer be supported starting 01 January 2021. The following operating systems will no longer be supported starting 01 February 2021.

OneAgent release notes version 1.195

Dynatrace

Operating systems. Upcoming Operating systems support changes. The following operating systems will no longer be supported starting 01 August 2020. The following operating systems will no longer be supported starting 01 November 2020. The following operating systems will no longer be supported starting 01 December 2020. The following operating systems will no longer be supported starting 01 January 2021.

OneAgent release notes version 1.189

Dynatrace

Operating systems. Current Operating systems support changes. The following operating systems will no longer be supported starting 01 May 2020. Dynatrace news. New features and enhancements. Easily change OneAgent metadata, host name, and monitoring mode. Added support for Spring AMQP 2.2. Added support for Go 1.14 for Linux, Alpine Linux 64-bit (x86), Windows (x86). Added support for EulerOS 2.3, Current support changes.

Min and Max memory configurations in SQL Server Database instances

SQL Shack

SQL Server works on top of the operating system and works closely with these resources. This article gives an insight into the configuration of Min and Max memory for SQL Server Database instances.