DZone

FEBRUARY 8, 2021

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. In this article let's study ‘Software Interrupt CPU time’.

Software 189

Software Software Operating System Hardware 189

Dynatrace

MAY 1, 2023

This enables AIOps teams to better predict performance and security issues and improve overall IT operations. ITOA automates repetitive cloud operations tasks and streamlines the flow of analytics into decision-making processes. Operations analytics ensures IT systems perform as expected.

Analytics 193

Analytics Artificial Intelligence Big Data Open Source 193

Dynatrace

NOVEMBER 15, 2021

Log monitoring, log analysis, and log analytics are more important than ever as organizations adopt more cloud-native technologies, containers, and microservices-based architectures. A log is a detailed, timestamped record of an event generated by an operating system, computing environment, application, server, or network device.

Analytics 214

Analytics Monitoring Artificial Intelligence DevOps 214

DZone

FEBRUARY 21, 2021

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 this article, let's study ‘nice CPU time’. What Is ‘nice’ CPU Time?

Operating System 133

Operating System Hardware Metrics Systems 133

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., Systems built with lots of microservices have different operational characteristics to those built from a small number of monoliths, we’d like to study and better understand those differences.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Scalegrid

DECEMBER 21, 2023

With these essential support systems in place, you can effectively monitor your databases with up-to-date data about their health and functioning status at all times. This ensures each Redis® instance optimally uses the in-memory data store and aligns with the operating system’s efficiency.

Strategy 130

Strategy Monitoring Latency DevOps 130

DZone

JANUARY 16, 2021

CPU consumption in Unix/Linux operating systems is broken down into 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 this article, let us study ‘waiting CPU time’.

Operating System 124

Operating System Hardware Network Metrics 124

Brendan Gregg

MAY 1, 2022

My dream is to turn computer performance analysis into a science, one where we can completely understand the performance of everything: of applications, libraries, kernels, hypervisors, firmware, and hardware. It's a critical time to join, and an honour to do so as an Intel fellow, based in Australia.

Wireless 145

Wireless Hardware Open Source AWS 145

Scalegrid

JULY 13, 2020

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. Compare ease of use across compatibility, extensions, tuning, operating systems, languages and support providers. PostgreSQL.

Open Source 244

Open Source Tuning C++ Database 244

Scalegrid

JANUARY 25, 2024

These can help you ensure your system’s health and quickly perform root cause analysis of any performance-related issue you might be encountering. These essential data points heavily influence both stability and efficiency within the system. You can pick a smart selection of relevant metrics from these.

Metrics 130

Metrics Monitoring Latency Cache 130

Dynatrace

APRIL 5, 2021

AWS Lambda enables organizations to access many types of functions from AWS’ cloud-based services, such as: Data processing, to execute code based on triggers, system states, or user actions. You will likely need to write code to integrate systems and handle complex tasks or incoming network requests.

Lambda 184

Lambda AWS Serverless Hardware 184

Dynatrace

JUNE 25, 2020

Our Premium High Availability comes with the following features: Active-active deployment model for optimum hardware utilization. Save on costs for hardware and network bandwidth to optimize total cost of ownership. A similar analysis can be performed on your GRO. A similar analysis can be performed on your GRO.

Availability 251

Availability Hardware Latency Traffic 251

Testlodge

NOVEMBER 12, 2021

For medium to large scale applications, compatible with all commonly available operating systems and internet browsers is essential. Hardware Compatibility Testing: In this scenario, an application is tested against various hardware configurations to check behavior. Cross-Browser Testing Tools.

Testing 78

Testing Hardware Operating System Mobile 78

Dynatrace

SEPTEMBER 29, 2021

Think of containers as the packaging for microservices that separate the content from its environment – the underlying operating system and infrastructure. It becomes immediately clear there must be number of mechanisms in place to coordinate such a distributed system. Event logs for ad-hoc analysis and auditing.

Open Source 307

Open Source Traffic DevOps Cloud 307

Dynatrace

JUNE 15, 2023

If your application runs on servers you manage, either on-premises or on a private cloud, you’re responsible for securing the application as well as the operating system, network infrastructure, and physical hardware. What are some key characteristics of securing cloud applications?

Cloud 182

Cloud Open Source Architecture Monitoring 182

Dynatrace

NOVEMBER 29, 2022

As a result, IT teams can automate and manage processes across on-premises and cloud-based systems, or between multiple cloud services to prevent vendor lock-in. With the proliferation of infrastructure-as-code tools, operations teams can: Deploy, configure, or tear down workloads into an instance in real-time.

Infrastructure 177

Infrastructure Code Cloud DevOps 177

The Netflix TechBlog

JUNE 4, 2019

We were able to meaningfully improve both the predictability and performance of these containers by taking some of the CPU isolation responsibility away from the operating system and moving towards a data driven solution involving combinatorial optimization and machine learning. can we actually make this work in practice?

Cache 251

Cache Latency Airlines Logistics 251

Brendan Gregg

MAY 1, 2022

My dream is to turn computer performance analysis into a science, one where we can completely understand the performance of everything: of applications, libraries, kernels, hypervisors, firmware, and hardware. It's a critical time to join, and an honour to do so as an Intel fellow, based in Australia.

Wireless 52

Wireless Hardware Open Source Cloud 52

Testsigma

FEBRUARY 3, 2021

Mobiles have different models, screen resolutions, operating systems, network types, hardware configurations, etc. Also, how to test the hardware of the mobile phone itself, is it supporting all the software as it should? Let us have a look at the most popular types of mobile testing for applications and hardware.

Mobile 82

Mobile Testing Hardware C++ 82

Randon ASCII

OCTOBER 4, 2020

First, a bit of operating-system design context. Ideally the CPU goes to sleep when Sleep(1) is called, in order to save power, so how does the operating system (OS) wake your thread if the CPU is sleeping? The answer is hardware interrupts. Timer interrupts and their raison d’être.

Programming 145

Programming Games Hardware Operating System 145

Dotcom-Montior

JUNE 15, 2020

The censorship and monitoring of internet have evolved from anti-virus-like and firewall software to hardware security patches for all devices that uses internet. Operating System Updates and Security Patches. All foreign websites hosted outside China undergoe screening and analysis for blacklisting and whitelisting.

Monitoring 52

Monitoring Performance Artificial Intelligence Internet 52

SQL Performance

DECEMBER 17, 2019

This removes the burden of purchasing and maintaining your hardware, storage and networking infrastructure, while still giving you a very familiar experience with Windows and SQL Server itself. You will still have to maintain your operating system, SQL Server and databases just like you would in an on-premises scenario.

Azure 72

Azure Virtualization Servers Storage 72

The Morning Paper

MAY 21, 2019

” This paper describes a “far memory” system that has been in production deployment at Google since 2016. Using zswap means that no new hardware solutions are required, enabling rapid deployment across clusters. The system also collects per-job cold-page histograms for a given set of predefined cold age thresholds.

Software 78

Software Software Google Hardware 78

Percona

JUNE 20, 2023

By doing some further analysis, it came to light that it creates issues with LEFT JOIN only. The following are possible causes for segmentation fault: Operating system issues Buggy OS kernel Faulty hardware(specifically memory) Bug in a product (e.g., In the case of an equi-join, it works as expected.

Programming 81

Programming C++ Database Virtualization 81

O'Reilly Software

APRIL 4, 2018

Those were the days when “connected” meant having some web presence, “interactions” were measured in number of clicks, and the analysis happened in batch overnight processes. Are there inherent time relationships in the messages that need to be preserved as they travel across the system? At least once? At most once? Exactly once?

Architecture 80

Architecture Scalability Google Operating System 80

Adrian Cockcroft

JUNE 21, 2022

Photo by Adrian I spent six years at Cambridge Consultants, building some interesting systems, managing our Sun workstations and learning a lot, but by then Sun had opened a sales office across the street, and I wanted to find out what they were going to release next, before everyone else.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Adrian Cockcroft

NOVEMBER 11, 2019

A resilient system continues to operate successfully in the presence of failures. The system needs to maintain a safety margin that is capable of absorbing failure via defense in depth, and failure modes need to be prioritized to take care of the most likely and highest impact risks. Concentrate on rapid detection and response.

Latency 52

Latency Engineering Systems Hardware 52

Testsigma

FEBRUARY 6, 2020

Examples of Dynamic Testing- Unit testing, System testing, Integration testing, Performance testing, Security testing. Boundary Value Analysis Equivalence Partitioning Decision Table Exploratory Testing Error guessing. Test cases are created, then run on the system and the actual results are validated against the expected results.

Software 69

Software Software Testing Scalability 69

Adrian Cockcroft

NOVEMBER 11, 2019

A resilient system continues to operate successfully in the presence of failures. The system needs to maintain a safety margin that is capable of absorbing failure via defense in depth, and failure modes need to be prioritized to take care of the most likely and highest impact risks. Concentrate on rapid detection and response.

Latency 53

Latency Engineering Systems Hardware 53

Dotcom-Montior

NOVEMBER 27, 2018

Additionally, end users can access your site or applications from anywhere in the world using different browsers, operating systems, and mobile devices, all with varying connection speeds. Finding upper limits of your current systems for capacity planning. Identifying performance bottlenecks.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

Dynatrace

NOVEMBER 20, 2019

The IBM Z platform is a range of mainframe hardware solutions that are quite frequently used in large computing shops. Typically, these shops run the z/OS operating system, but more recently, it’s not uncommon to see the Z hardware running special versions of Linux distributions.

Availability 32

Availability Hardware Java Tuning 32

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

O'Reilly

JULY 15, 2020

Almost one-third (29%) of respondents say their employers are migrating or implementing a majority of their systems (over 50%) using microservices. software and systems architects, technical leads—architects represent almost 28% of the sample. Microservices Adoption: Explication and Analysis. Figure 1: Respondent roles.

Database 134

Database Architecture Education Systems 134

Dynatrace

AUGUST 8, 2019

The IBM Z platform is a range of mainframe hardware solutions that are quite frequently used in large computing shops. Typically, these shops run the z/OS operating system, but more recently, it’s not uncommon to see the Z hardware running special versions of Linux distributions.

Availability 25

Availability Hardware Java Tuning 25

Nick Desaulniers

APRIL 6, 2020

halt (); Some sort of very early exception handler; better to sit busy in an infinite loop than run off and destroy hardware or corrupt data, I suppose. Jann Horn gets back to me first: Can you use QEMU to look at the hardware frame (which contains values pushed by the hardware in response to the page fault) in early_idt_handler_common?

C++ 67

C++ Hardware Code Virtualization 67

ACM Sigarch

NOVEMBER 1, 2019

This blog post gives a glimpse of the computer systems research papers presented at the USENIX Annual Technical Conference (ATC) 2019, with an emphasis on systems that use new hardware architectures. USENIX ATC is a top-tier venue with a broad range of systems research papers from both industry and academia.

Architecture 12

Architecture Hardware Cache Storage 12

SQL Server According to Bob

JULY 13, 2016

desktop machine (I won’t tell you the hardware details. Over the years this product has grown into a complete data platform including Reporting Services, Analysis Services, Integration Services, more tools, Replication, R Services, and much more. Here is what it looked like on my system. on my Windows NT 3.1 It would scare you).

Servers 40

Servers Media Engineering Virtualization 40