Adrian Cockcroft

FEBRUARY 9, 2023

The layers of platforms start at the bottom with hardware choices such as which CPU architectures and vendors you want to use. The next layer is operating system platforms, what flavor of Linux, what version of Windows etc. Talking through the map, we start with an end user who can choose a web app or a mobile app.

Engineering 137

Engineering Serverless Lambda AWS 137

HammerDB

FEBRUARY 25, 2021

For HammerDB both TPROC-C and TPROC-H run all of their workloads on the database being tested in SQL. The following is an example from TPROC-C from SQL Server. TPROC-C however is derived from the TPC-C specification and requires application logic around the SQL. Database interfaces in C. select top 100.

Programming 68

Programming Benchmarking Virtualization C++ 68

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

The Morning Paper

MAY 23, 2019

If we compress objects instead of cache lines though, we can get to a 56% compression ratio (c). … to realize these insights, hardware needs to access data at object granularity and must have control over pointers between objects. . Hotpads is a hardware-managed hierarchy of scratchpad-like memories called pads.

Cache 61

Cache Benchmarking Hardware Java 61

Percona

JUNE 20, 2023

In order to understand “segmentation fault,” it is a must to know the basic idea of segmentation and its implementation in C programming. The following are possible causes for segmentation fault: Operating system issues Buggy OS kernel Faulty hardware(specifically memory) Bug in a product (e.g.,

Programming 88

Programming C++ Database Virtualization 88

Brendan Gregg

AUGUST 8, 2017

Nowadays, the source code to old operating systems can also be found online. TABLE OF EXP(-T/C) FOR T = 5 SEC. EXPFF: EXP 0.920043902 ;C = 1 MIN EXP 0.983471344 ;C = 5 MIN EXP 0.994459811 ;C = 15 MIN. Here's an example: on an idle 8 CPU system, I launched tar to archive some uncached files.

Latency 111

Latency Metrics C++ Systems 111

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. In addition to the TPC-C specification for OLTP workloads, the TPC has also developed the TPC-E specification.

Benchmarking 63

Benchmarking Open Source C++ Cache 63

Abhishek Tiwari

SEPTEMBER 15, 2024

million lines of C code. That's about the same amount of code you'd find in a high-end smartphone operating system. The choice of C as the programming language is telling. Every function, every module, every subsystem is tested individually and then as part of the larger system.

Engineering 52

Engineering Social Media Hardware C++ 52

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

Official Blog - World Web Technology

APRIL 29, 2024

The apps are compiled into indigenously written code that is compatible with both the operating systems. It uses a single code Dart to develop mobile apps that are clammed with the Objective C and Java Code on Android and iOS respectively. Energizes the native resources and elements.

Social Media 52

Social Media Mobile Open Source Hardware 52

Official Blog - World Web Technology

APRIL 29, 2024

The apps are compiled into indigenously written code that is compatible with both the operating systems. It uses a single code Dart to develop mobile apps that are clammed with the Objective C and Java Code on Android and iOS respectively. Energizes the native resources and elements.

Social Media 52

Social Media Mobile Open Source Hardware 52

The Morning Paper

DECEMBER 8, 2019

Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data. If the kernel isn’t involved in the persistent data access path, then we need a hardware solution to enforce access control.

Hardware 56

Hardware Programming Media Storage 56

Smashing Magazine

NOVEMBER 16, 2021

Conventional computers now sport touchscreens and otherwise blur the lines between device types – and between mobile and desktop operating systems. Touch Design for Mobile Interfaces presents and shares real information on hardware, people, interactions, and environments. If you are in the C-suite, do yourself a favor and read.

Mobile 90

Mobile Design Best Practices Website 90

Percona

MAY 1, 2023

Key areas include: Configuration parameter tuning : This tuning involves altering variables such as memory allocation, disk I/O settings, and concurrent connections based on specific hardware and requirements. This not only results in cost savings by minimizing hardware requirements but also has the potential to decrease cloud expenses.

Tuning 52

Tuning Database Efficiency Performance 52

Percona

AUGUST 30, 2018

Because recognizing if the workload is read intensive or write intensive will impact your hardware choices, database configuration as well as what techniques you can apply for performance optimization and scalability. You can also choose to look at event counts or at the time it takes to do operations. Why should you care?

Benchmarking 48

Benchmarking Database Operating System Architecture 48

HammerDB

APRIL 19, 2023

This all sounded very similar to HammerDB TPROC-C workload (we will look at HammerDB TPROC-H (OLAP) another time), so it is easy for any reader to think both workloads are about the same. Operating System: Ubuntu 22.04 Storage: The system has a SATA drive for the operating system and one NVMe (Intel SSD D7-P5510 (3.84

Performance 55

Performance Benchmarking Cache Storage 55

The Agile Manager

SEPTEMBER 30, 2020

IBM had launched the trademarked Personal Computer in 1981 using an open architecture of widely available components from 3rd party sources such as Intel and the fledgling Disk Operating System from an unknown firm in Seattle called Microsoft. In 1987, IBM introduced a new product, the Personal System/2.

Hardware 52

Hardware Social Media Media Strategy 52

HammerDB

JANUARY 5, 2019

For example the following chart (with the actual data removed for the reasons described further in this post) shows the HammerDB TPC-C workload run against the same database on different processing architectures (grouped by colour) and speed with the most recent at the top.

Benchmarking 40

Benchmarking Database Social Media Scalability 40

Testsigma

JUNE 19, 2020

It supports multi programming languages like Python, Java, C# etc. It supports multi-operating system support like Windows, Linux etc. Selenium consume less hardware support for test cases execution 7. Selenium supports execution on multi browsers like Chrome, Firefox etc.

Testing Tools 60

Testing Tools Testing Open Source Java 60

SQL Server According to Bob

JANUARY 11, 2020

Subsystem / Path The ​​ I/O subsystem or path ​​ includes ​​ those ​​ components ​​ that are ​​ used to support an I/O operation. ​​ SQL Server ​​ copy-on-write actions are used to maintain snapshot databases in SQL Server 2005.

Servers 40

Servers Cache Database Media 40

SQL Server According to Bob

DECEMBER 18, 2018

The operating system signals completion when the I/O stack finishes the request. Linux provides different system calls (syscall)/commands for asynchronous behavior. Linux may need similar utilities to control various hardware cache installations. You can explore your system using the df and lsblk commands.

Servers 90

Servers Media Cache Storage 90

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. We had specializations in hardware, operating systems, databases, graphics, etc.

Tuning 52

Tuning Benchmarking Engineering C++ 52

High Scalability

NOVEMBER 25, 2019

Which languages do you use to develop your system? Java/Python mostly and some small services in Go/C. What operating systems do you use? How are software and hardware upgrades rolled out? Data interdependence. Level of concurrent reads. Level of concurrent writes. Egnyte Connect Tech Stack. Cloud Platform.

Architecture 52

Architecture Cache Azure Storage 52

Smashing Magazine

JANUARY 7, 2019

On the other hand, we have hardware constraints on memory and CPU due to JavaScript parsing times (we’ll talk about them in detail later). Gatsby.js (React), Preact CLI , and PWA Starter Kit provide reasonable defaults for fast loading out of the box on average mobile hardware. Image credit: Addy Osmani ) ( Large preview ).

Performance 105

Performance Cache Metrics Network 105