Sutter's Mill

NOVEMBER 11, 2023

Today, the ISO C++ committee completed its second meeting of C++26, held in Kona, HI, USA. Our hosts, Standard C++ Foundation and WorldQuant, arranged for high-quality facilities for our six-day meeting from Monday through Saturday. This time, the committee adopted the next set of features for C++26. This is that library.

C++ 130

C++ Lambda Network Programming 130

The Netflix TechBlog

JUNE 4, 2019

The idea CFS operates by very frequently (every few microseconds) applying a set of heuristics which encapsulate a general concept of best practices around CPU hardware use. We formulate the problem as a Mixed Integer Program (MIP). Conclusion If any of this piques your interest, reach out to us!

Cache 258

Cache Latency Airlines Logistics 258

Randon ASCII

OCTOBER 4, 2020

It is desirable for a program to be able to go to sleep and then wake up a little while later. The answer is hardware interrupts. The OS programs a timer chip that then triggers an interrupt that wakes up the CPU and the OS can then schedule your thread. Timer interrupts and their raison d’être. Decades of madness.

Programming 145

Programming Games Hardware Operating System 145

ACM Sigarch

OCTOBER 12, 2020

These, let’s call them metal languages , include FORTRAN (introduced in 1957), C (1972), and C++ (1985). Programmers continue to write applications in them, and they continue to evolve: the just approved C++20 standard is the latest example. Despite their age, these languages are far from dead! As Leiserson et al.

C++ 108

C++ Benchmarking Hardware Architecture 108

All Things Distributed

NOVEMBER 15, 2010

We believe that making these GPU resources available for everyone to use at low cost will drive new innovation in the application of highly parallel programming models. The early GPU systems were very vendor specific and mostly consisted of graphic operators implemented in hardware being able to operate on data streams in parallel.Â

AWS 125

AWS Programming Latency Architecture 125

The Morning Paper

MAY 27, 2019

CheriABI: enforcing valid pointer provenance and minimizing pointer privilege in the POSIX C run-time environment Davis et al., 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 ). ASPLOS’19. We answer this question affirmatively.

C++ 61

C++ Hardware Virtualization Benchmarking 61

HammerDB

FEBRUARY 25, 2021

This is why the choice of programming language is so important from the outset. For HammerDB both TPROC-C and TPROC-H run all of their workloads on the database being tested in SQL. The following is an example from TPROC-C from SQL Server. Database interfaces in C. and the following from TPROC-H. select top 100.

Programming 68

Programming Benchmarking C++ Virtualization 68

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. Only maintenance from now on, everything new will be in @rustlang.

Internet 124

Internet Internet Scalability Serverless 124

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 Programming AWS Social Media 145

Percona

JUNE 20, 2023

In order to understand “segmentation fault,” it is a must to know the basic idea of segmentation and its implementation in C programming. When we need to execute any program, it should be loaded into memory first. Here, memory is divided into equal sizes of partitions where the code of a program resides.

Programming 103

Programming C++ Database Virtualization 103

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., The paper examines the implications of microservices at the hardware, OS and networking stack, cluster management, and application framework levels, as well as the impact of tail latency. ASPLOS’19.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Sutter's Mill

FEBRUARY 13, 2017

I don’t get to Europe very often apart from ISO C++ standards meetings, but this spring I’ve been able to accept invitations for two English-language European events in the last week of April. Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm).

Latency 48

Latency C++ Hardware Performance 48

Sutter's Mill

JUNE 16, 2011

Yesterday I had the privilege of talking about some of the work we’ve been doing to support massive parallelism on GPUs in the next version of Visual C++. The video of my talk announcing C++ AMP is now available on Channel 9. If they are, then one programming model should be able to address them all. More to come…

C++ 40

C++ Hardware Programming Cloud 40

The Netflix TechBlog

APRIL 17, 2019

264/AVC, currently, the most ubiquitous video compression standard supported by modern devices, often in hardware. However, rav1e is written in Rust programming language, whereas an encoder written in C has a much broader base of potential developers. The success was repeated by H.264/AVC,

Open Source 167

Open Source Scalability Speed Efficiency 167

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. Both mobile and web front ends call an Application Program Interface (API) that is managed by an API proxy. The next layer is operating system platforms, what flavor of Linux, what version of Windows etc.

Engineering 136

Engineering Serverless Lambda AWS 136

Sutter's Mill

APRIL 14, 2011

Scott Meyers, Andrei Alexandrescu and I are continuing to craft and announce the technical program for C++ and Beyond (C&B) 2011 , and two more sessions are now posted. All talks are brand-new material created specifically for C&B 2011. Here are short blurbs; follow the links for longer descriptions.

C++ 40

C++ Programming Strategy Code 40

The Morning Paper

MAY 23, 2019

These techniques work well for scientific programs that are dominated by arrays. However, they are ineffective on object-based programs because objects do not fall neatly into fixed-size blocks and have a more irregular layout. If we compress objects instead of cache lines though, we can get to a 56% compression ratio (c).

Cache 61

Cache Benchmarking Hardware Java 61

Percona

AUGUST 18, 2023

The original motivation for FB was due to different hardware generations, especially between regions/data centers. for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., AFAIK Facebook does this.

Programming 98

Programming Servers Database Systems 98

The Morning Paper

JANUARY 28, 2020

If you want a lightweight, fast-starting, easy to program for, embeddable application runtime that also offers isolation, then a natural choice is V8 isolates. Entry/exit in/out of V8 contexts is less expensive than hardware-based isolation mechanisms, keeping request processing latency low and throughput high. High performance.

Serverless 99

Serverless Storage Latency Cloud 99

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 63

Benchmarking Open Source C++ Cache 63

Nick Desaulniers

MAY 30, 2016

Three C/C++ programmers walk into a bar. Simultaneously, they’re all right, but they’re also all wrong (and need a lesson about portable C code). 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. What the hell is going on?

C++ 59

C++ Programming Code Hardware 59

Randon ASCII

FEBRUARY 25, 2018

In this particular investigation, which spanned twenty months, we suspected hardware failure, compiler bugs, linker bugs, and other possibilities. Jumping too quickly to blaming hardware or build tools is a classic mistake, but in this case the mistake was that we weren’t thinking big enough. failure rate.

Programming 79

Programming Hardware Cache Code 79

Brendan Gregg

AUGUST 18, 2019

C @ns: [256, 512) 10900 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | [512, 1k) 18291 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@| [1k, 2k) 4998 |@@@@@@@@@@@@@@ | [2k, 4k) 57 | | [4k, 8k) 117 | | [8k, 16k) 48 | | [16k, 32k) 109 | | [32k, 64k) 3 | |. The probe is BEGIN , a special probe that runs at the beginning of the program (like awk).

Latency 57

Latency C++ Cache Programming 57

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. It will seem that there’s no output, and QEMU isn’t responding to ctrl+c. enable-kvm.

C++ 56

C++ Hardware Virtualization Systems 56

Brendan Gregg

SEPTEMBER 25, 2021

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. As (C) looked like a kernel rebuild, I started with (D) and (E). ## 5. us on Centos and 0.68

Speed 103

Speed Java AWS Virtualization 103

Abhishek Tiwari

SEPTEMBER 15, 2024

million lines of C code. The choice of C as the programming language is telling. They use techniques like hardware-in-the-loop testing, where the software is run on the actual hardware it will use in space, simulating real-world conditions as closely as possible.

Engineering 52

Engineering Social Media Hardware C++ 52

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 ). Welcome to hell, kids.

C++ 67

C++ Hardware Code Virtualization 67

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

Tech News Gather

AUGUST 25, 2022

The platform is based on a purpose-oriented programming language that is simple to learn. Unlike other programs, it is compatible with both iOS and Android. Because the development is built on a single codebase, it saves time when testing the program across many platforms. Hardware Costs. Dedicated Hiring Model.

Development 52

Development Mobile Hardware Open Source 52

Brendan Gregg

AUGUST 8, 2017

TABLE OF EXP(-T/C) FOR T = 5 SEC. EXPFF: EXP 0.920043902 ;C = 1 MIN EXP 0.983471344 ;C = 5 MIN EXP 0.994459811 ;C = 15 MIN. 90491 N|rnberg (Germany) Consulting+Networking+Programming+etc'ing 42. kernel/sched.c.orig Fri Oct 29 10:31:11 1993 kernel/sched.c Yes, I'd say so. They aren't idle.

Latency 111

Latency Metrics C++ Systems 111

Official Blog - World Web Technology

APRIL 29, 2024

React Native Being an open-source programming language introduced by Facebook, Reactjs is the most viable language for web app developers to go to when they come across to build various web solutions for various platforms. A perfect substitute for native or hybrid app development platform, apps aren’t hardware-sensitive or budget effective.

Social Media 52

Social Media Mobile Open Source Hardware 52

Official Blog - World Web Technology

APRIL 29, 2024

React Native Being an open-source programming language introduced by Facebook, Reactjs is the most viable language for web app developers to go to when they come across to build various web solutions for various platforms. A perfect substitute for native or hybrid app development platform, apps aren’t hardware-sensitive or budget effective.

Social Media 52

Social Media Mobile Open Source Hardware 52

Testsigma

JUNE 19, 2020

testing and is integratable with multiple programming languages (i.e. There are various disadvantages of using Selenium(we will discuss it later), one of them is that it requires strong technical knowledge about programming language because it’s script can only be written with the help of programming languages like Java, Python etc.

Testing Tools 60

Testing Tools Testing Open Source Java 60

Alex Russell

JUNE 20, 2020

3] Oh, and it should be imperatively programmed with Lisp-in-C's-clothing. Recall that browsers arose atop platforms that universally provided a host of services by the late 90's: system fonts (to support layout programs, including WYSIWYG editing). multi-tasking & concurrent programming. high-color image raster.

Games 64

Games Hardware Java Mobile 64

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. Implementation.

Software 40

Software Software Programming Hardware 40

John McCalpin

NOVEMBER 5, 2016

In the latest (October 2016) revision of Intel’s Instruction Extensions Programming Reference , Intel has disclosed a fairly dramatic departure from these “traditional” approaches. Notes on notation: C[i][j] is invariant in the innermost loop, so I refer to the values in the accumulator as elements of the C array.

Cache 40

Cache C++ Latency Hardware 40

Brendan Gregg

SEPTEMBER 25, 2021

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. As (C) looked like a kernel rebuild, I started with (D) and (E). Ubuntu is 5x slower.

Speed 52

Speed Java AWS Virtualization 52