Brendan Gregg

JULY 4, 2021

I summarized these topics and more as a plenary conference talk, including my own predictions (as a senior performance engineer) for the future of computing performance, with a focus on back-end servers. This was a chance to talk about other things I've been working on, such as the present and future of hardware performance.

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory.

Performance 52

Performance Latency Cache Virtualization 52

Testsigma

FEBRUARY 5, 2021

Once you have chosen your target devices, consider the architectural aspect of your hardware. You need strong and reliable servers to manage mobile devices and execute test scripts. Internet and Power Supply. In the case of weak Wi-Fi points, you would struggle with timeouts or slow server responses. Automated Testing.

Mobile 52

Mobile Testing Hardware DevOps 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. This server is spending about a third of its CPU cycles just checking the time! As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. 30.14% in the middle of the flame graph.

Speed 52

Speed Java AWS Virtualization 52

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

SQL Server According to Bob

JULY 13, 2016

20+ years ago when I joined Microsoft I was handed a diskette (maybe it was two), and was told “Here is SQL Server. So I proceeded to install SQL Server 4.20 desktop machine (I won’t tell you the hardware details. There was a GUI as part of setup but within just a few clicks, SQL Server was installed and ready for use.

Servers 40

Servers Media Engineering Virtualization 40

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

Dotcom-Montior

NOVEMBER 27, 2018

Analyzing server performance (CPU, memory, bandwidth, disk I/O) and database response times. The scripts can be uploaded into the LoadView platform and replayed by a virtually unlimited number of simultaneous users, giving you actual performance from real browsers. All resources are dedicated to this test – no shared servers.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. This server is spending about a third of its CPU cycles just checking the time! As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. 30.14% in the middle of the flame graph.

Speed 40

Speed Java AWS Virtualization 40

Dotcom-Montior

JUNE 19, 2017

A series of GET requests from an in-house server can’t possibly replicate what actually happens when a website sees a sudden increase in users from all over the world. Thanks to cloud-based virtual servers, LoadView can send traffic to your site or application from around the world. First up is a summary.

Performance Testing 40

Performance Testing Testing Performance Virtualization 40

Brendan Gregg

SEPTEMBER 5, 2017

Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters). Oracle VM Server is based on Xen. I also wrote and published an entertaining SMF manifest that played music.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

JANUARY 11, 2021

In the end, it’s not the load events or server response times that define the experience, but the perception of how snappy the interface feels. It used to provide an insight into how quickly the server outputs any data. This knowledge will give you the best optimization target for ongoing efforts. What does it mean?

Performance 145

Performance Cache Media Metrics 145

O'Reilly

NOVEMBER 28, 2023

If we asked whether their companies were using databases or web servers, no doubt 100% of the respondents would have said “yes.” A year after the first web servers became available, how many companies had websites or were experimenting with building them? Until AI reaches 100%, it’s still in the process of adoption. from education.

Open Source 112

Open Source Artificial Intelligence Google Infrastructure 112

All Things Distributed

JANUARY 18, 2012

a Fast and Scalable NoSQL Database Service Designed for Internet Scale Applications. Today is a very exciting day as we release Amazon DynamoDB , a fast, highly reliable and cost-effective NoSQL database service designed for internet scale applications. By Werner Vogels on 18 January 2012 07:00 AM. Comments ().

Scalability 167

Scalability Database Ecommerce Latency 167