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

Adrian Cockcroft

JANUARY 20, 2023

on Myths and Legends of High Performance Computing  — it’s a somewhat light-hearted look at some of the same issues by the leader of the team that built the Fugaku system I mention below. HPCG is led by Japan’s RIKEN Fugaku system at 16 petaflops, which is 3% of it’s peak capacity. petaflops, which is 0.8% of peak capacity.

Architecture 52

Architecture Latency Benchmarking AWS 52

Smashing Magazine

MARCH 2, 2021

While many of us, designers and developers, are likely to have a relatively new mobile phone in our pockets, a vast majority of our customers isn’t quite like us. A performance benchmark Lighthouse is well-known. And to ensure the quality of a product, we always need to test — on a number of devices, and in a number of conditions.

Mobile 133

Mobile Testing Website Benchmarking 133

Smashing Magazine

JUNE 2, 2021

Every front-end developer is chasing the same holy grail of performance: green scores in Google Page Speed. Real-life performance for your users and how the website “feels” when you’re using it should not be discounted, even if it costs you a point or two in Page Speed (otherwise, we would all just have a search bar and unstyled text).

Performance 115

Performance Cache Website Mobile 115

SQL Performance

DECEMBER 17, 2019

You will still have to maintain your operating system, SQL Server and databases just like you would in an on-premises scenario. Microsoft currently has eight main types of virtual machines designed for different types of workloads. I believe this is due to the higher IPC and higher base clock speed of the AMD processor.

Azure 72

Azure Virtualization Servers Storage 72

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

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. To add elasticity, reliability and durability, these data centers are connected to Google Cloud platform using high speed, secure Google Interconnect network. How much upfront design should you do?

Architecture 52

Architecture Cache Azure Storage 52

SQL Server According to Bob

JANUARY 11, 2020

SQL Server defines stable media as storage that can survive system restart or common failure. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. Torn pages generally arise after system outages where the subsystem does not complete the entire 8-KB I/O request.

Servers 40

Servers Cache Media Hardware 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