John McCalpin

JULY 23, 2018

Updates on 2019-01-23 in blue. When running a single user thread, you will often get the advertised single-core Turbo frequency, but if the operating system enables more cores to handle (even very short-lived) background processes, your frequency may drop unexpectedly. Discard tests with non-zero values for these short cases.

Code 45

Code Programming Latency Testing 45

Smashing Magazine

MAY 25, 2021

A number of sites moved to font-display: swap when this first came out, and Google Fonts even made it the default in 2019. The amount of code isn’t huge, but it still feels like a little bit more effort than it should be. However, beyond that it didn’t really solve the problem. That would certainly help increase adoption.

Operating System 143

Operating System Google Website Cache 143

Testsigma

OCTOBER 31, 2019

We need more automated testing as software gets more sophisticated. Recently, top QA consultancy companies QASymphony and TechWell surveyed mid-size and large-size enterprises for insights into the QA Automation trends of 2019. They found that most of these organizations(76%) were automating less than half of their test cases in 2018.

Testing 40

Testing Testing Tools Open Source Programming 40

SQL Server According to Bob

MAY 19, 2019

As you can imagine, with a code base as large and vast as SQL Server, there is always room for improvement. There are a bunch of folks with compiler, linker, SQL Server code, testing and other disciplines who provided input. SQL Server 2019 builds DLLs and EXEs with 4KB file alignment to enable better demand paging.

IoT 61

IoT Servers Development Cache 61

Dynatrace

MAY 31, 2021

Three revolutions were just beginning and have been feeding on each other since, as commented by John Arundel and Justin Domingus in their 2019 book Cloud Native DevOps with Kubernetes : Cloud computing: A revolution in the automation of infrastructure-as-a-service (IaaS) in an on-demand, pay-as-you-use model.

Virtualization 132

Virtualization DevOps Infrastructure Cloud 132

HammerDB

JUNE 27, 2022

HammerDB has graphical and command line interfaces for the Windows and Linux operating systems. Also, when testing a database with a De-Witt clause, it was then possible to produce your own results without having to rely on a particular vendor to publish results of interest. Why HammerDB was developed. The HammerDB name.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Alex Russell

AUGUST 30, 2021

I'm only aware of a few such instances: Apple's 2019 response to the U.S. Does Apple restrict, in any way, the ability of competing web browsers to deploy their own web browsing engines when running on Apple's operating system? Anyone who cares to download and fork the code can do so. If no, please explain why not.

Engineering 98

Engineering Open Source Website Operating System 98

Smashing Magazine

FEBRUARY 5, 2019

2019-02-05T13:00:00+01:00. 2019-04-29T18:34:58+00:00. Sometimes, due to insufficient memory, the operating system might need to remove your app from memory while the app is in the background, and the app might lose track of its last UI state if it is not preserved, possibly causing users to lose their work in progress!

Performance 75

Performance Energy Operating System Code 75

Percona

MARCH 30, 2023

In simple terms, an open source database is this: It’s a database with source code that is free and available to all. Public accessibility enables and allows users to download, modify, and distribute the code. Their work produces higher-quality code and enables faster innovation, while maintaining high security standards.

Open Source 77

Open Source Database Storage Scalability 77

SQL Performance

AUGUST 15, 2019

Updated August 15th, 2019 for 0.9.6. We had to convert all our.NET Framework code to.NET Core, change our UI code to Node and React, and re-work the entire plan diagram implementation. New in 0.9.6 – August 15th, 2019. After some discussion, we brought the concept to the leadership team, and set a plan in motion.

Azure 50

Azure Servers Tuning Operating System 50

The Morning Paper

JUNE 30, 2019

Today we’re jumping from HotOS topics of 2019, to hot topics of 1977! Here’s the set-up as relayed to me by Pat (with permission): At work, I am part of a good sized team working on a large system implementation. One of the very senior engineers with 25+ years experience mentioned a problem with the system.

Traffic 75

Traffic Latency Programming Scalability 75

Dynatrace

NOVEMBER 20, 2019

Having released this functionality in an Early Adopter Release with OneAgent version 1.173 and Dynatrace version 1.174 back in August 2019, we’re now happy to announce the General Availability of OneAgent full-stack monitoring for Linux on the IBM Z platform, sometimes informally referred to as Z/Linux. Dynatrace news.

Availability 31

Availability Hardware Java Tuning 31

Alex Russell

JUNE 22, 2022

Defenders of Apple's monopoly offer hard-to-test claims, but many boil down to the idea that Apple's product is inferior by necessity. This will, in turn, cause developers to skimp on testing for Safari, making it inevitable that browsers based on WebKit and other minority engines cannot compete. Or so the theory goes.

Engineering 110

Engineering Traffic Government Google 110

SQL Server According to Bob

DECEMBER 18, 2018

kernel additions to the Linux XFS file system can send the Fua bit along with the write request so “forced flush” behavior is not needed and the performance of writes is significantly improved. Testing shows that by using the Fua bit with the data, write request can reduce the I/O traffic by ~50% for a SQL Server, write-intensive workload.

Servers 90

Servers Media Cache Storage 90

Dynatrace

AUGUST 8, 2019

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. The initial release of the solution with OneAgent version 1.173 is certified and tested to work on RedHat Enterprise Linux (RHEL) distribution 6.9+

Availability 25

Availability Hardware Java Tuning 25

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. Most (74%) respondents say their teams own the build-test-deploy-maintain phases of the software lifecycle. Success with microservices means owning the software lifecycle.

Database 135

Database Architecture Education Systems 135