Percona

AUGUST 31, 2018

The PostgreSQL buffer is called shared_buffer which is the most effective tunable parameter for most operating systems. It’s low because certain machines and operating systems do not support higher values. For testing purposes, let’s increase this to 256MB and see if there is any impact on cost.

Tuning 55

Tuning Database Performance Benchmarking 55

PDC

APRIL 14, 2019

It ranks the world’s 500 most powerful supercomputers based on their performance as measured by the Linpack benchmark. This is vividly reflected in the design on the Titan supercomputer , which is still among the world’s top 10 most powerful supercomputers (as of the November 2018 Top500 list). You may have heard of the Top500 list.

Energy 40

Energy Benchmarking Efficiency Website 40

Dynatrace

SEPTEMBER 23, 2021

Many good security tools provide that function, and benchmarks from the Center for Internet Security (CIS) are clear and prescriptive. Four types of tools are commonly used to detect software vulnerabilities: Source-code tests that are used in development environments. Source code tests. Harden the host operating system.

Open Source 243

Open Source Benchmarking Best Practices Network 243

Smashing Magazine

MARCH 2, 2021

The State Of Mobile And Why Mobile Web Testing Matters. The State Of Mobile And Why Mobile Web Testing Matters. And to ensure the quality of a product, we always need to test — on a number of devices, and in a number of conditions. What’s a representative device to test on in 2021? Kelvin Omereshone. State Of Mobile 2021.

Mobile 135

Mobile Testing Website Benchmarking 135

HammerDB

JUNE 27, 2022

HammerDB is a software application for database benchmarking. 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. Why HammerDB was developed.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

HammerDB

JANUARY 5, 2019

Some opinions claim that “Benchmarks are meaningless”, “benchmarks are irrelevant” or “benchmarks are nothing like your real applications” However for others “Benchmarks matter,” as they “account for the processing architecture and speed, memory, storage subsystems and the database engine.”

Benchmarking 40

Benchmarking Database Social Media Scalability 40

HammerDB

FEBRUARY 25, 2021

HammerDB is a load testing and benchmarking application for relational databases. All the databases that HammerDB tests implement a form of MVCC (multi-version concurrency control). On high-performance multi-core systems all the supported databases can return performance in the many millions of transactions per minute.

Programming 67

Programming Benchmarking Virtualization C++ 67

John McCalpin

APRIL 2, 2020

The presentation discusses a family of simple performance models that I developed over the last 20 years — originally in support of processor and system design at SGI (1996-1999), IBM (1999-2005), and AMD (2006-2008), but more recently in support of system procurements at The Texas Advanced Computing Center (TACC) (2009-present).

Benchmarking 59

Benchmarking Performance Latency Architecture 59

HammerDB

NOVEMBER 30, 2018

This article Threads Done Right… With Tcl gives an excellent overview of these capabilities and it should be clear that to build a scalable benchmarking tool this thread performance and scalability is key. The agent directory contains the agent code to be run on the system under test to gather the CPU utilisation information.

Architecture 40

Architecture Virtualization Open Source C++ 40

SQL Server According to Bob

JANUARY 11, 2020

​​ With new ​​ innovations ​​ come ​​ new terms, designs, ​​ and ​​ algorithms. This is different from ​​ the reference count design ​​ that was ​​ used in SQL Server 7.0 and ​​ 2000.

Servers 40

Servers Cache Database Media 40

ScaleOut Software

MAY 15, 2014

Testing Scale-Up Performance. Well, performance comparisons aren’t so easy since the AppFabric license agreement states: “You may not disclose the results of any benchmark tests of the software to any third party without Microsoft’s prior written approval.” A Few Words on Design Philosophy: Keep It Simple.

Cache 40

Cache Servers Network Design 40

SQL Server According to Bob

JANUARY 11, 2020

SQL Server always checks I/O completion status for any operating system error conditions and proper data transfer size and then handles errors appropriately. Torn pages generally arise after system outages where the subsystem does not complete the entire 8-KB I/O request. This utility is located on the Microsoft Web site.

Servers 40

Servers Cache Media Hardware 40

Smashing Magazine

JUNE 2, 2021

The project consisted of upgrading the shop software to our own open-source system and redoing the shop’s front end from scratch. The design was made by a design and UX agency that also handled the HTML prototype (based on Bootstrap 4). Today, the website is much faster and ranks highly in various showcases and benchmarks.

Performance 117

Performance Cache Website Mobile 117

John McCalpin

APRIL 25, 2023

This metric is interesting because we don’t always have the luxury of parallelizing every application we run, and our operating systems almost always process each call (e.g., GHz, 1530 GB/s peak BW from 6 HBM stacks), I see single-thread sustained memory bandwidth of 304 GB/s on the ReadOnly benchmark used here.

Benchmarking 97

Benchmarking Cache Latency Tuning 97

High Scalability

NOVEMBER 25, 2019

To help our customers manage ongoing data explosion, we have designed many of the core components over the last few years. I mean that as your scale grows then design patterns and strategies that used to work 2 years ago and allowed you to go from defensive to offensive positioning may buckle under pressure or becomes cost-prohibitive.

Architecture 52

Architecture Cache Azure Storage 52