Percona

AUGUST 18, 2023

The original motivation for FB was due to different hardware generations, especially between regions/data centers. root@ip-172-31-128-38 share]# cat /usr/lib/systemd/system/mysqld@.service err 2023-07-10T05:26:42.521994Z 0 [System] [MY-010910] [Server] /usr/bin/mysqld: Shutdown complete (mysqld 8.0.19-10)

Programming 87

Programming Servers Database Hardware 87

The Netflix TechBlog

AUGUST 30, 2021

Complementing the hardware is the software on the RAE and in the cloud, and bridging the software on both ends is a bi-directional control plane. System Setup Architecture The following diagram summarizes the architecture description: Figure 1: Event-sourcing architecture of the Device Management Platform.

Latency 213

Latency Traffic Transportation Hardware 213

ACM Sigarch

JULY 17, 2023

We then discuss defects observed, the role of test and design to address this problem, and identify research opportunities. An example of a specification is the correct operation of the hardware of a microprocessor. While testing is important, exhaustive testing is challenging given the sheer size of modern processor designs.

Energy 52

Energy Hardware Best Practices Architecture 52

Randon ASCII

OCTOBER 4, 2020

The behavior of the Windows scheduler changed significantly in Windows 10 2004, in a way that will break a few applications, and there appears to have been no announcement, and the documentation has not been updated. I think the new behavior is an improvement, but it’s weird, and it deserves to be documented.

Programming 145

Programming Games Hardware Operating System 145

Percona

JULY 7, 2023

Where a high availability design once worked well, it can no longer keep up with more complex requirements. The majority of SPOFs are a consequence of scale, where designs that were once adequate (excellent, even) no longer meet evolving, more complex requirements. Failover is essential to minimizing downtime.

Availability 86

Availability Open Source Architecture Database 86

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. The overhead to walk DWARF is also too high, as it was designed for non-realtime use. What are frame pointers?

Java 145

Java Cache Google Hardware 145

Tech News Gather

JUNE 30, 2023

Introduction In today’s data-driven world, Geographic Information System (GIS) technology plays a pivotal role in numerous industries, revolutionizing decision-making processes and providing valuable insights into spatial data. These applications can range from simple map viewers to complex spatial analysis tools.

Technology 52

Technology Technology Development Retail 52

Testsigma

JUNE 3, 2021

A few of the errors which can be faced due to a poorly designed UI are: i. These errors are caught during software documentation testing. He may think that the software got stuck and a system restart is needed. Hardware error. We focus on software so much that we forget about the hardware failures. Hardware issues.

Software 82

Software Software Testing Hardware 82

Percona

MAY 2, 2023

However, it’s important to note that the optimal value may vary depending on your specific workload and hardware configuration. concurrent threads running, duration of queries, etc) As we can see, the decision is not only based on a formula or documentation. 16) and monitoring the server’s performance.

Social Media 124

Social Media Database Servers Cache 124

Testsigma

MAY 3, 2021

Web developers are moving their focus from desktop-first to mobile-first web design which further solidifies our understanding of how important this pocket device has become. From operating systems to versions to hardware specs, mobile devices stand unique even after being billions in number. Collaboration with Multiple Teams.

Mobile 77

Mobile Testing Operating System Hardware 77

HammerDB

JUNE 27, 2022

It enables the user to measure database performance and make comparative judgements about database hardware and software. HammerDB has graphical and command line interfaces for the Windows and Linux operating systems. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

HammerDB

APRIL 19, 2023

Therefore, before we attempt to measure our database performance, we should know the system or cloud instance to be tested in detail. There are several ways to find out this information with the easiest way being by referring to the documentation. Instead, readers should refer to the HammerDB documentation.

Performance 54

Performance Benchmarking Cache Storage 54

The Morning Paper

MARCH 3, 2020

It takes you through the thinking processes and engineering practices behind the design of a key part of the control plane for AWS Elastic Block Storage (EBS): the Physalia database that stores configuration information. Physalia is designed to offer consistency and high-availability, even under network partitions. A guiding principle.

Database 106

Database AWS Network Design 106

Smashing Magazine

AUGUST 3, 2021

This premise, known as graceful degradation allows a system to continue working when parts of it are dysfunctional — much like an electric bike becomes a regular bike when its battery dies. Often system failures are chalked up as “corner cases” — things that rarely happen, however, the web has many corners.

Network 145

Network Engineering Availability Monitoring 145

SQL Performance

JANUARY 23, 2020

The queues component of our methodology comes from Performance Monitor counters, which provide a view of system performance from a resource standpoint.". However, some seem to have missed Davidson's point regarding the importance of resources and rely almost entirely on waits to present a picture of query performance and system health.

Tuning 115

Tuning Servers Monitoring Hardware 115

HammerDB

OCTOBER 23, 2023

HammerDB has always used stored procedures as a design decision because the original benchmark was implemented as close as possible to the example workload in the TPC-C specification that uses stored procedures. This in itself is not an issue as it means we are well within the systems bandwidth capabilities. On MySQL, we saw a 1.5X

Benchmarking 62

Benchmarking Database Network C++ 62

Testsigma

FEBRUARY 6, 2020

Documents like requirements documents, design documents, code are reviewed and review comments are provided at early stages of Software Lifecycle. Examples of Dynamic Testing- Unit testing, System testing, Integration testing, Performance testing, Security testing. ” In Static Testing, code is not executed.

Software 69

Software Software Testing Scalability 69

SQL Server According to Bob

JANUARY 11, 2020

This will help you increase system performance and avoid I/O environment errors. Copyright The information contained in this document represents the current view of Microsoft Corporation on the issues discussed as of the date of publication. Complying with all applicable copyright laws is the responsibility of the user.

Servers 40

Servers Cache Media Hardware 40

Alex Russell

APRIL 29, 2021

After 20 years of neck-in-neck competition, often starting from common code lineages, there just isn't that much left to wring out of the system. Consistent improvement is the name of the game, and it can still have positive impacts, particularly as users lean on the system more heavily over time. Media Session API. Background Sync.

Media 145

Media Games Education Engineering 145

Dotcom-Montior

DECEMBER 8, 2021

Systems, web applications, servers, devices, etc., SREs and DevOps teams can use these incidents to build back better and improve their systems and services. Now that we have talked about what an incident is, incident management is the process by which teams resolve these events and bring systems and services back to normal operation.

Social Media 90

Social Media Monitoring Latency DevOps 90

Percona

JULY 26, 2023

MongoDB is a non-relational document database that provides support for JSON-like storage. To make this process work more efficiently and ensure a smooth failover, it is important to have the same hardware configuration on all the nodes of the replica set. MongoDB is popular with developers as it is easy to get started with.

Database 83

Database Servers Storage Strategy 83

Smashing Magazine

SEPTEMBER 21, 2021

I couldn’t start my system anymore. All and all, it took me days to get back to the system I had before the crash. I can reinstall my whole system with a bunch of scripts I’ve written, including all the tools I use and their configurations. Note : The tools I advocate in this article work on Linux-based systems.

Development 98

Development Energy Programming Efficiency 98

Alex Russell

JULY 14, 2021

The predominant desktop situation is relatively straightforward: Browsers handle links, and non-browsers defer loading http and https URLs to the system, which in turn invokes the default browser. Instead, they load content referred by their hosting native app in system-provided WebViews. The Baseline Scenario #. But neither has to be.

Google 121

Google Mobile Engineering Internet 121

Percona

DECEMBER 14, 2022

System space is at a premium i.e. it’s worth your while to manage space utilization as much as possible. As a General Purpose Database Management System, basic behaviors can be reconfigured in Postgres for different purposes. There’s actually more documented. size should at a minimum be in the tens of GB. wget [link].

Database 93

Database Analytics Storage Processing 93

All Things Distributed

JUNE 28, 2017

At Amazon, we also require our systems and customer solutions to be anti-fragile, and we do that by designing our systems to stand the test of time. Our systems must be able to evolve and become more resilient to failure. The body and hardware still reflect HARTING's standard of perfection.

Innovation 113

Innovation Website Servers Technology 113

Alex Russell

MARCH 6, 2021

Unless a site is installed to the home screen as a PWA , any single page is just another in a series of documents that users experience as a river of links. Hardware Past As Performance Prologue. Chip design choices and silicon economics are the defining feature of the still-growing Performance Inequality Gap. Mind The Gap.

Performance 124

Performance Network Cache Metrics 124

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. As we have seen databases are designed to handle multiple database sessions at the same time. For this reason we need to implement our database sessions in the form of operating system threads.

Programming 67

Programming Benchmarking Virtualization C++ 67

Randon ASCII

APRIL 14, 2020

KeStallExecutionProcessor is a busy wait and it was weird to see it as the single most executed function on my entire system. Is a second or more of busy waiting really the only way to get my hardware going? The events are designed for maximum confusion. The nice thing about CPU starvation as a theory is that it is testable.

Programming 89

Programming Processing Systems Hardware 89

Abhishek Tiwari

DECEMBER 13, 2017

This has far-reaching implications how future data systems and algorithms will be designed. More importantly, if this works out well, this could lead to a radical improvement in performance by leveraging hardware trends such as GPUs and TPUs. For instance, one can practically fit an entire learned index into the GPU’s memory.

Artificial Intelligence 40

Artificial Intelligence Hardware Google Benchmarking 40

HammerDB

DECEMBER 5, 2020

First of all it has always been clear in the HammerDB documentation that the TPROC-C/TPC-C and TPROC-H/TPC-H workloads have not been ‘real’ audited and published TPC results instead providing a tool to run workloads based on these specifications. I.e. if system A generated 1.5X

C++ 40

C++ Benchmarking Virtualization Open Source 40

Alex Russell

OCTOBER 22, 2017

Tools and CI systems help them monitor progress & prevent regressions. This isn’t true (more on that in a follow-up post), and sites which are built this way implicitly require more script in each document (e.g., This input processing happens on document’s main thread , where JavaScript runs. Parsing CSS.

Performance 68

Performance Benchmarking Network Mobile 68

John McCalpin

JANUARY 22, 2018

The double-precision matrix multiplication routine “DGEMM” is typically the computational kernel that achieves the highest fraction of peak performance on high performance computing systems. Timers and hardware performance counters are measured immediately outside the loop, where their overhead is negligible.

Latency 40

Latency Hardware Code Testing 40

Smashing Magazine

FEBRUARY 5, 2019

Although modern iOS hardware is powerful enough to handle many intensive and complex tasks, the device could still feel unresponsive if you are not careful about how your app performs. Don’t design an entry experience that looks like a splash screen or an "About" window. iOS Performance Tricks To Make Your App Feel More Performant.

Performance 75

Performance Energy Operating System Code 75

Testsigma

JUNE 19, 2020

It is a browser-based test automation tool which is designed to support cross-browser (i.e. Testsigma is a test automation ecosystem to plan, design, develop, execute, analyze, and report for continuous testing in Agile and DevOps. It supports multi-operating system support like Windows, Linux etc. Chrome, Firefox, Safari etc.

Testing Tools 60

Testing Tools Testing Open Source Java 60

Abhishek Tiwari

JULY 12, 2018

In a nutshell, a data pipeline is a distributed system. A data pipeline is a software which runs on hardware. The software is error-prone and hardware failures are inevitable. The 8 fallacies of data pipeline Based on my own learnings and experience shared by others, a data pipeline project is never finished.

Latency 63

Latency Analytics Scalability Engineering 63

SQL Server According to Bob

JANUARY 11, 2020

Copyright The information ​​ that is contained ​​ in this document represents the current view of Microsoft Corporation on the issues discussed as of the date of publication. Complying with all applicable copyright laws is the responsibility of the user. ​​ Read it before you read this paper.

Servers 40

Servers Cache Database Media 40

Alex Russell

JUNE 20, 2020

Recall that browsers arose atop platforms that universally provided a host of services by the late 90's: system fonts (to support layout programs, including WYSIWYG editing). In each quantum of time, hardware and OS vendors press ahead, adding features. This is often determined by hardware integration and device replacement rates.

Hardware 55

Hardware Games Java Media 55