ACM Sigarch

MAY 31, 2023

using Compute Express Link or CXL), organizing memory components for optimal performance, adapting system software traditionally designed for homogeneous memory systems, and developing memory abstractions and programming constructs for HCM management. About CXL hardware availability with academia. Using emulation (e.g.

Latency 52

Latency Hardware Cache Architecture 52

The Morning Paper

MAY 27, 2019

Last week we saw the benefits of rethinking memory and pointer models at the hardware level when it came to object storage and compression ( Zippads ). The protections are hardware implemented and cannot be forged in software. At hardware reset the boot code is granted maximally permissive architectural capabilities.

C++ 61

C++ Hardware Virtualization Benchmarking 61

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 virtualization and networking platform could be datacenter based, with something like VMware, or cloud based using one of the cloud providers such as AWS EC2.

Engineering 137

Engineering Serverless Lambda AWS 137

Brendan Gregg

FEBRUARY 28, 2023

I'm now program co-chair for SREcon 2023 APAC, and our 2023 conference is June 14-16 in Singapore. And now, helping bring USENIX conferences to Australia by giving the first keynote: I could not have scripted or expected it. The call for participation ends on March 2nd 23:59 SGT!

Performance 110

Performance Latency Cache Virtualization 110

O'Reilly

SEPTEMBER 15, 2021

Our audience is particularly strong in the software (20% of respondents), computer hardware (4%), and computer security (2%) industries—over 25% of the total. Given the difficulty of hiring expertise from outside, we expect an increasing number of companies to grow their own ML and AI talent internally using training programs.

Azure 145

Azure Social Media Programming AWS 145

O'Reilly Software

OCTOBER 23, 2018

Typically, when we modify a program, we’d like to run it to verify our changes. Before booting a compiled Linux kernel image on actual hardware, it can save us time and potential headache to do a quick boot in a virtual machine like QEMU as a sanity check.

Hardware 44

Hardware Virtualization Programming 44

Brendan Gregg

FEBRUARY 28, 2023

I'm now program co-chair for SREcon 2023 APAC, and our 2023 conference is June 14-16 in Singapore. And now, helping bring USENIX conferences to Australia by giving the first keynote: I could not have scripted or expected it. It was a great privilege. The call for participation ends on March 2nd 23:59 SGT!

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

AUGUST 18, 2019

bpftrace uses BPF (Berkeley Packet Filter), an in-kernel execution engine that processes a virtual instruction set. The probe specifies what events to instrument, the filter is optional and can filter down the events based on a boolean expression, and the action is the mini program that runs. There's no filter. BEGIN Start of bpftrace.

Latency 68

Latency C++ Cache Programming 68

Nick Desaulniers

OCTOBER 24, 2018

Typically, when we modify a program, we’d like to run it to verify our changes. Before booting a compiled Linux kernel image on actual hardware, it can save us time and potential headache to do a quick boot in a virtual machine like QEMU. 1.144949 ] Hardware name: QEMU Standard PC ( i440FX + PIIX, 1996 ) , BIOS 1.10.2-1ubuntu1

C++ 56

C++ Hardware Virtualization Systems 56

ACM Sigarch

FEBRUARY 23, 2018

It is much more difficult to publish truly risky, revolutionary research due to implicit filters in what gets funded and what makes it past a program committee. Virtualization, for instance, was being addressed by IBM in the 1960s. We believed existing hardware and OS protocols protected the processor. Discounting the Past.

Architecture 47

Architecture Cache Hardware Virtualization 47

KeyCDN

JANUARY 23, 2020

A wide range of users with different operating systems, browsers, hardware configurations and other variables provides a wide sample size that helps developers discover as many issues as possible. This helps developers decide when to increase server disk space and power or whether or not using a virtual cloud server is optimal.

Strategy 72

Strategy Metrics Monitoring Servers 72

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

All Things Distributed

SEPTEMBER 4, 2017

Both concepts are virtually omnipresent and at the top of most buzzword rankings. The management consultants at McKinsey expect that the global market for AI-based services, software and hardware will grow annually by 15-25% and reach a volume of around USD 130 billion in 2025. More room for optimism.

Artificial Intelligence 147

Artificial Intelligence Transportation Education Airlines 147

Dynatrace

JANUARY 26, 2021

Traditional computing models rely on virtual or physical machines, where each instance includes a complete operating system, CPU cycles, and memory. VMware commercialized the idea of virtual machines, and cloud providers embraced the same concept with services like Amazon EC2, Google Compute, and Azure virtual machines.

Serverless 245

Serverless Efficiency Lambda Azure 245

Smashing Magazine

SEPTEMBER 21, 2021

It’s because the shell is really powerful: it allows you to run many small programs which work very well together. It’s very similar to the virtual desktops many Linux desktop managers have. Vim has another big advantage: you can use it to develop in many programming languages. They’re called CLIs (Command-Line Interfaces).

Development 99

Development Energy Programming Efficiency 99

HammerDB

FEBRUARY 25, 2021

This is why the choice of programming language is so important from the outset. To benchmark a database we introduce the concept of a Virtual User. Database Application Logic Oracle PL/SQL SQL Server T-SQL Db2 SQL PL PostgreSQL PL/pgSQL MySQL stored program language HammerDB Stored Procedures. Basic Benchmarking Concepts.

Programming 67

Programming Benchmarking Virtualization C++ 67

Nick Desaulniers

MAY 30, 2016

One of the first few programs a programmer might write after hello world is something like this: 1. When they run that program, they see: 1. Someone from the back shouts virtual machines then ducks as a chair is thrown. 64-Bit Programming Models: Why LP64? What the hell is going on? include <stdio.h> and inttypes.h

C++ 59

C++ Programming Code Hardware 59

Dynatrace

SEPTEMBER 15, 2020

The AWS Service Ready Program was established to support the seamless integration and deployment of AWS services. We are delighted to welcome Dynatrace to the AWS Outposts Ready Program. We’re therefore excited to announce that Dynatrace has received the AWS Outposts Service Ready designation. What is AWS Outposts?

AWS 208

AWS Design Storage Cloud 208

SQL Server According to Bob

NOVEMBER 29, 2016

Let’s actually use the calculator program in Windows 10 to look at this a different way. Automatic soft-NUMA was enabled because SQL Server has detected hardware NUMA nodes with greater than 8 physical cores. What does this look like in a Virtual Machine? 111111111111111111111111111111111111? Hyper-V calls these vCPUs.

Servers 45

Servers Virtualization Scalability Hardware 45

O'Reilly

NOVEMBER 28, 2023

And everyone has opinions about how these language models and art generation programs are going to change the nature of work, usher in the singularity, or perhaps even doom the human race. AI users say that AI programming (66%) and data analysis (59%) are the most needed skills. Many AI adopters are still in the early stages.

Open Source 106

Open Source Artificial Intelligence Google Infrastructure 106

Brendan Gregg

MARCH 16, 2024

It was also a virtual machine that lacked low-level hardware profiling capabilities, so I wasn't able to do cycle analysis to confirm that the 10% was entirely frame pointer-based. and we may have been flying close to the edge of hardware cache warmth, where adding a bit more instructions caused a big drop.

Java 145

Java Cache Google Hardware 145

HammerDB

JUNE 27, 2022

It enables the user to measure database performance and make comparative judgements about database hardware and software. These factors meant that often when looking for database performance information, the results for a particular combination of software and hardware were not available. What is HammerDB? Why HammerDB was developed.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

SQL Server According to Bob

JULY 13, 2016

desktop machine (I won’t tell you the hardware details. Launching this program brings you to the new Basic Installer Screen. In addition, the Download Media option includes a link to create a virtual machine in Azure for SQL Server 2016. Go install it”. So I proceeded to install SQL Server 4.20 on my Windows NT 3.1

Servers 40

Servers Media Engineering Virtualization 40

The Morning Paper

DECEMBER 10, 2019

This is a companion paper to the " persistent problem " piece that we looked at earlier this week, going a little deeper into the object pointer representation choices and the mapping of a virtual object space into physical address spaces. Both abstractions must be implemented in a way that is efficient using existing hardware.

Hardware 52

Hardware Virtualization Operating System Programming 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI.

Speed 126

Speed Java AWS Virtualization 126

SQL Server According to Bob

DECEMBER 18, 2018

Linux may need similar utilities to control various hardware cache installations. product: Virtual Disk. Msft Virtual Disk 1.0 You should always validate the Fua capabilities with your device and hardware vendor. Fua = Forced Unit Access. Fua is the standard used to issue an I/O write command in stable data storage.

Servers 90

Servers Media Cache Storage 90

The Morning Paper

DECEMBER 8, 2019

On the last morning of the conference Daniel Bittman presented some of the work being done in the context of the Twizzler OS project to explore new programming models for NVM. The starting point is a set of three asumptions for an NVM-based programming model: Compared to traditional persistent media, NVM is fast.

Hardware 56

Hardware Programming Media Storage 56

High Scalability

JULY 26, 2018

Peter : DARPA foresee a third one in which context-based programs are able to explain and justify their own reasoning. Ops: "Sorry, 3-5 month lead time on DC hardware and our switches are near capacity" - coming soon to an on-prem "serverless" project near you.

Internet 124

Internet Internet Scalability Serverless 124

Dotcom-Montior

NOVEMBER 24, 2021

With the rapid advancements in web application technologies, programming languages, cloud computing services, microservices, hybrid environments, etc., This complexity is “hidden” to the end user, like how an API (Application Programming Interface) operates, whether that is an actual user or another computer. Concurrency.

Systems 74

Systems Monitoring Hardware Network 74

Nick Desaulniers

APRIL 6, 2020

“War stories” in programming are entertaining tales of truly evil bugs that kept you up at night. 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. Recent work. halt_loop: while ( true ). a “gadget.”)

C++ 67

C++ Hardware Code Virtualization 67

Alex Russell

APRIL 29, 2021

Now in development in WebKit after years of radio silence, WebXR APIs provide Augmented Reality and Virtual Reality input and scene information to web applications. Provides support for "unread counts", e.g. for email and chat programs. is access to hardware devices. PWA App Icon Badging. Media Session API.

Media 145

Media Games Education Engineering 145

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI.

Speed 52

Speed Java AWS Virtualization 52

The Morning Paper

APRIL 2, 2019

In this context it means there are no external dependencies on e.g. secrets, trusted hardware modules, or special instructions (e.g. known good state of a trustworthy program). A d -degree polynomial can be evaluated in d steps in a Horner-rule program. carefully chosen computation over M and R and the nonce.

Software 40

Software Software Programming Hardware 40

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI.

Speed 40

Speed Java AWS Virtualization 40

Randon ASCII

AUGUST 16, 2018

When a Windows program stops pumping messages there will be ETW events emitted to indicate exactly where this happened , so those types of hangs are trivial to find. Normally running every 6 ms is enough to make a program responsive, but for some reason it wasn’t making any progress. But apparently Chrome kept on pumping messages.

Programming 75

Programming Virtualization Code Processing 75

Randon ASCII

APRIL 14, 2020

I tried to tap the control key (virtual key code 162) once a second until the password input field appeared. Some of it is programs (including som internal Google tools) that have registered in Task Scheduler to run “On workstation lock of any user” – who knew? Ultimately there are a lot of programs spinning very hard.

Programming 89

Programming Processing Systems Hardware 89

Particular Software

MARCH 11, 2019

Exceptions What happens when programming exceptions occur in message processing code? Unfortunately it makes ordered delivery virtually impossible to support. Instead of scaling up, where you buy more powerful and expensive hardware, you scale out by having more servers processing messages.

Virtualization 69

Virtualization Scalability Servers Processing 69