Brendan Gregg

JULY 4, 2021

AWS Graviton2); for memory with the arrival of DDR5 and High Bandwidth Memory (HBM) on-processor; for storage including new uses for 3D Xpoint as a 3D NAND accelerator; for networking with the rise of QUIC and eXpress Data Path (XDP); and so on. I also wrote about these topics in detail for my recent [Systems Performance 2nd Edition] book.

Performance 140

Performance Latency Hardware Storage 140

Percona

AUGUST 30, 2023

In general terms, here are potential trouble spots: Hardware failure: Manufacturing defects, wear and tear, physical damage, and other factors can cause hardware to fail. heat) can damage hardware components and prompt data loss. Human mistakes: Incorrect configuration is an all-too-common cause of hardware and software failure.

Database 91

Database Hardware Open Source Strategy 91

ACM Sigarch

APRIL 26, 2018

BPU: Brain Processing Unit is the design of the AI chips by Horizon Robotics. With its modular architecture, DLA is scalable, highly configurable, and designed to simplify integration and portability. HPU: Holographic Processing Unit (HPU) is the specific hardware of Microsoft’s Hololens.

Hardware 99

Hardware Artificial Intelligence Architecture Google 99

Scalegrid

JANUARY 8, 2024

Discover key insights and strategic advice in our article, designed to steer you toward the best cloud solution that fits your company’s priorities. Challenges of Multi-Cloud Although multi-cloud has its benefits, it also presents some obstacles. In this scenario, two notable models – multi-cloud and hybrid cloud have emerged.

Strategy 147

Strategy Cloud Scalability Artificial Intelligence 147

The Netflix TechBlog

AUGUST 30, 2021

Complementing the hardware is the software on the RAE and in the cloud, and bridging the software on both ends is a bi-directional control plane. When a new hardware device is connected, the Local Registry detects and collects a set of information about it, such as networking information and ESN.

Latency 213

Latency Traffic Transportation Hardware 213

Scalegrid

JANUARY 25, 2024

Understanding Redis Performance Indicators Redis is designed to handle high traffic and low latency with its in-memory data store and efficient data structures. It’s important to note that recommended throughput levels may vary depending on factors such as operating system type, network bandwidth availability, and hardware quality.

Metrics 130

Metrics Monitoring Latency Cache 130

Percona

JULY 7, 2023

Unfortunately, using certain open source database software as part of an HA architecture can present significant challenges. Despite all its upside, PostgreSQL software presents such challenges. Where a high availability design once worked well, it can no longer keep up with more complex requirements.

Availability 87

Availability Open Source Architecture Database 87

Percona

FEBRUARY 24, 2023

Let’s take a look at how to get the benefits you need while spending less, based on the recommendations presented by Dani Guzmán Burgos, our Percona Monitoring and Management (PMM) Tech Lead, on this webinar (now available on demand) hosted in November last year. Over-provisioned instances may lead to unnecessary infrastructure costs.

Cloud 122

Cloud Serverless AWS Storage 122

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. We are working on multiple fronts to extend the solution presented here.

Cache 251

Cache Latency Airlines Logistics 251

Percona

MAY 2, 2023

However, it’s important to note that the optimal value may vary depending on your specific workload and hardware configuration. Answer : No, ChatGPT is an AI language model developed by OpenAI and is not designed to replace a MySQL DBA job. 16) and monitoring the server’s performance. So, as for now, we are safe 😀

Social Media 124

Social Media Database Servers Cache 124

Percona

OCTOBER 18, 2023

Compatibility Open source databases are designed with interoperability at their core, adhering to industry standards and offering support for a wide range of data import and export formats. Evaluating your hardware requirements is another vital aspect of resource allocation. Should I be bringing in external experts to help out?

Open Source 95

Open Source Database Hardware Strategy 95

Brendan Gregg

FEBRUARY 28, 2023

DDR6: Here's What to Expect in RAM Modules,” [link] Nov 2020 - [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] Jul 2020 - [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 110

Performance Latency Cache Virtualization 110

Brendan Gregg

JULY 4, 2021

AWS Graviton2); for memory with the arrival of DDR5 and High Bandwidth Memory (HBM) on-processor; for storage including new uses for 3D Xpoint as a 3D NAND accelerator; for networking with the rise of QUIC and eXpress Data Path (XDP); and so on. I also wrote about these topics in detail for my recent [Systems Performance 2nd Edition] book.

Performance 52

Performance Latency Hardware Storage 52

The Morning Paper

MARCH 8, 2020

This paper describes the design decisions behind the Snowflake cloud-based data warehouse. This paper presents Snowflake design and implementation along with a discussion on how recent changes in cloud infrastructure (emerging hardware, fine-grained billing, etc.) From shared-nothing to disaggregation.

Storage 112

Storage Engineering Cache Serverless 112

Testsigma

JUNE 3, 2021

A few of the errors which can be faced due to a poorly designed UI are: i. These software errors are usually uncovered during functionality testing, mostly can be present as: Difficult/ confusing functionality: If the user is unable to understand or perform a function on the application, then it should change. Hardware error.

Software 82

Software Software Testing Hardware 82

Alex Russell

JANUARY 30, 2024

It's time once again to update our priors regarding the global device and network situation. HTML, CSS, images, and fonts can all be parsed and run at near wire speeds on low-end hardware, but JavaScript is at least three times more expensive, byte-for-byte. What's changed since last year? and 75KiB of JavaScript.

Performance 90

Performance Network Mobile Speed 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. Traditionally one of the major costs when moving data in and out of memory (be it to persistent media or over the network) is serialisation. What about security?

Hardware 56

Hardware Programming Media Storage 56

The Morning Paper

JUNE 13, 2019

HotOS’19 is presenting me with something of a problem as there are so many interesting looking papers in the proceedings this year it’s going to be hard to cover them all! Different hardware architectures (CPUs, GPUs, TPUs, FPGAs, ASICs, …) offer different performance and cost trade-offs. HotOS’19.

Hardware 58

Hardware Latency Serverless Energy 58

Alex Russell

APRIL 29, 2021

Real-time network protocols for enabling videoconferencing, desktop sharing, and game streaming applications. Modern, asynchronous network APIs that dramatically improve performance in some situations. Important for apps that present boarding passes and QR codes for scanning, as well as and presentation apps (e.g.

Media 145

Media Games Education Engineering 145

The Morning Paper

MAY 28, 2019

The goal is to produce a low-energy hardware classifier for embedded applications doing local processing of sensor data. Race logic has four primary operations that are easy to implement in hardware: MAX, MIN, ADD-CONSTANT, and INHIBIT. One efficient way of doing that in analog hardware is the use of current-starved inverters.

Energy 52

Energy Hardware Efficiency Architecture 52

ACM Sigarch

APRIL 8, 2019

Below we present some thoughts on the why and one solution to address the issue. This is arguably a fundamentally hard problem for computer architecture, but efforts towards open source hardware (eg. Her current work focuses on hardware/software co-design for extremely large-scale deep learning training. Why is that?

Architecture 74

Architecture Open Source Hardware Software Engineering 74

ACM Sigarch

OCTOBER 25, 2018

The phenomenon of plateauing ST performance is a consequence of design constraints – primarily power. The Thermal Design Power (TDP) of a SOC in a current Ultrabook design is constrained to 15W. In view of this it is perhaps worth pondering why ST performance growth has stalled and some options to revive the growth.

Architecture 67

Architecture Technology Technology Innovation 67

Adrian Cockcroft

JUNE 21, 2022

The early days at Sun Cambridge were special, I absorbed a lot about networking and the technical side of the role from my fellow systems engineer Martin Baines, and we were driving all over the region in cool company cars (I had a Citroen BX 16V) selling a really hot product.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Brendan Gregg

FEBRUARY 28, 2023

DDR6: Here's What to Expect in RAM Modules,” [link] , Nov 2020 [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] , Jul 2020 [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 52

Performance Latency Cache Virtualization 52

Alex Russell

JULY 14, 2021

The benefits to apps that adopt WebView-based IABs are numerous: WebViews are system components designed for use within other apps. On Android today and early iOS versions, WebViews allow embedders to observe and modify all network traffic (regardless of encryption). Hardware access APIs, notably: Geolocation. Web Bluetooth.

Google 121

Google Mobile Engineering Internet 121

Alex Russell

SEPTEMBER 20, 2020

Pre-publication gates were valuable when better answers weren't available, but commentators should update their priors to account for hardware and software progress of the past 13 years. Fast forward a decade, and both the software and hardware situations have changed dramatically. Don't like the consequences?

Hardware 64

Hardware Mobile Programming Java 64

Adrian Cockcroft

NOVEMBER 11, 2019

Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. This discussion focuses on hardware, software and operational failure modes. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. This discussion focuses on hardware, software and operational failure modes. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 53

Latency Engineering Systems Hardware 53

SQL Server According to Bob

JANUARY 11, 2020

​​ Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information presented after the date of publication. This White Paper is for informational purposes only.

Servers 40

Servers Cache Media Hardware 40

Smashing Magazine

JANUARY 11, 2021

Performance isn’t just a technical concern: it affects everything from accessibility to usability to search engine optimization, and when baking it into the workflow, design decisions have to be informed by their performance implications. Networking, HTTP/2, HTTP/3 OCSP stapling, EV/DV certificates, packaging, IPv6, QUIC, HTTP/3.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Performance isn’t just a technical concern: it affects everything from accessibility to usability to search engine optimization, and when baking it into the workflow, design decisions have to be informed by their performance implications. thanks, Guy Podjarny! ). 300ms RTT, 1.6 Mbps down, 0.8 Mbps up) with a throttled CPU (5× slowdown).

Performance 145

Performance Cache Network Metrics 145

ACM Sigarch

NOVEMBER 1, 2019

This blog post gives a glimpse of the computer systems research papers presented at the USENIX Annual Technical Conference (ATC) 2019, with an emphasis on systems that use new hardware architectures. The second work presented a novel scalable distributed capability mechanism for security and protection in such systems.

Architecture 12

Architecture Hardware Cache Storage 12

Dotcom-Montior

DECEMBER 8, 2021

ITSM defines how teams design, create, and deliver their services. Software services still require physical devices and hardware for them to function. This can also lead to identifying further opportunities where weaknesses may be present. It is much more than just IT support. Asset Management. Postmortems.

Social Media 90

Social Media Monitoring Latency DevOps 90

Alex Russell

JUNE 20, 2020

full TCP/IP & UDP networking, including local network discovery. Java arrived with a focus on structured programming (including threads), GUI controls , networking, device access, and graphics. In each quantum of time, hardware and OS vendors press ahead, adding features. high-color image raster. floppy/CD/DVD).

Hardware 55

Hardware Games Java Media 55

Smashing Magazine

JANUARY 7, 2019

Performance isn’t just a technical concern: it matters, and when baking it into the workflow, design decisions have to be informed by their performance implications. Without a strong alignment between dev/design and business/marketing teams, performance isn’t going to sustain long-term. 150ms RTT, 1.5 Mbps down, 0.7

Performance 103

Performance Cache Metrics Network 103

Sutter's Mill

MAY 28, 2012

There was so much interest that I formed four Study Groups and appointed chairs: the largest on concurrency and parallelism (SG1, Hans Boehm), and three others on modules (SG2, Doug Gregor), filesystem (SG3, Beman Dawes), and networking (SG4, Kyle Kloepper). This will be a broad and deep dive. At C++ and Beyond 2011, the attendees (audience!)

C++ 40

C++ Hardware Best Practices Tuning 40