Daniel Lemire

FEBRUARY 8, 2019

The division by a power of two ( / (2 N )) can be implemented as a right shift if we are working with unsigned integers, which compiles to single instruction: that is possible because the underlying hardware uses a base 2. Thus if 2 N / d has been precomputed, you can compute the division n/d as a multiplication and a shift.

C++ 279

C++ Benchmarking Hardware Testing 279

The Netflix TechBlog

FEBRUARY 13, 2020

There is a potential benefit in reusing the hardware in place for video compression/decompression. Image decoding in hardware may not be a primary motivator, given the peculiarities of OS dependent UI composition, and architectural implications of moving uncompressed image pixels around.

Code 212

Code Metrics Efficiency Open Source 212

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

All Things Distributed

AUGUST 16, 2012

An apples to apples comparison of the costs associated with running various usage patterns on-premises and with AWS requires more than a simple comparison of hardware expense versus always-on utility pricing for compute and storage. Total Cost of Ownership and the Return on Agility. By Werner Vogels on 16 August 2012 10:00 AM.

AWS 118

AWS Hardware Traffic Best Practices 118

Percona

DECEMBER 27, 2022

Here is a comparison chart of the different levels of encryption available in various relational database management systems: Encryption Level. This key is usually stored in a secure location, such as a hardware security module (HSM). Here is an example architecture for the Transparent data encryption for PostgreSQL. PostgreSQL.

Database 93

Database Storage Servers Strategy 93

SQL Performance

AUGUST 27, 2019

This is the second generation EPYC server processor that uses the same Zen 2 architecture as the AMD Ryzen 3000 Series desktop processors. It will also use less power than a two-socket Intel server, with a lower hardware cost, and potentially lower licensing costs (for things like VMware). In this case, 6,716.88/64 64 equals 104.95

Servers 52

Servers Benchmarking Virtualization Architecture 52

Percona

JANUARY 19, 2023

sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> INSERT INTO employees_compressed SELECT * FROM employees; Size comparison: [user1] percona@db1: ~ $ sudo ls -lh /var/lib/mysql/employees/|grep employees -rw-r --. sec) mysql> ALTER TABLE employees_compressed ROW_FORMAT=COMPRESSED; Query OK, 0 rows affected (0.14

Open Source 88

Open Source Storage Database Big Data 88

Highly Scalable

APRIL 2, 2012

From the business logic point of view, this was a pretty typical eCommerce service for hierarchical and faceted navigation, although not without peculiarities, but high performance requirements led us to the quite advanced architecture and technical design. Deployment Schema and High-Level Architecture.

Ecommerce 100

Ecommerce Cache Storage Architecture 100

John McCalpin

JANUARY 22, 2018

Pointer arithmetic, loop index increments, loop trip count comparisons, and conditional branches are all essentially “free” on mainstream Xeon processors, but have to be considered very carefully on the Xeon Phi x200. A “best case” scenario: DGEMM. addl $1, %eax vfmadd213pd %zmm16, %zmm17, %zmm29. 8.056 0.056 75.0%

Latency 40

Latency Hardware Code Testing 40

The Morning Paper

JULY 18, 2019

The overall Neural Bloom Filter architecture looks like this: A controller network encodes the input (which might be a row in a table, but could equally be e.g. an image) into an embedding. More recently, the Kanerva Machine introduced a level of indirection with a learnable addressing matrix that learns where to write. they’re all 3s).

Network 86

Network Java Database Hardware 86

HammerDB

OCTOBER 12, 2018

As is also the case this limitation is at the database level (especially the storage engine) rather than the hardware level. Finally it is also important to note that this comparison is focused around OLTP based workloads, HammerDB also supports a TPC-H based workload for analytics with complex ad-hoc queries.

Best Practices 40

Best Practices Scalability Performance C++ 40

ScaleOut Software

APRIL 22, 2020

Since almost all large web sites use server farms to handle growing workloads, it’s no surprise that server farms can also offer a powerful and cost-effective hardware platform for hosting a site’s fast-changing data. Online web sites and services are now more vital than ever to keeping our daily activities moving forward.

Cache 52

Cache Storage Servers Database 52

ScaleOut Software

APRIL 22, 2020

Since almost all large web sites use server farms to handle growing workloads, it’s no surprise that server farms can also offer a powerful and cost-effective hardware platform for hosting a site’s fast-changing data. Online web sites and services are now more vital than ever to keeping our daily activities moving forward.

Cache 52

Cache Storage Servers Database 52

Smashing Magazine

JANUARY 11, 2021

Defining The Environment Choosing a framework, baseline performance cost, Webpack, dependencies, CDN, front-end architecture, CSR, SSR, CSR + SSR, static rendering, prerendering, PRPL pattern. Still, after all these years, keeping progressive enhancement as the guiding principle of your front-end architecture and deployment is a safe bet.

Performance 145

Performance Cache Media Metrics 145

Alex Russell

JULY 14, 2021

Hardware access APIs, notably: Geolocation. Beyond direct harms, interested parties should not consider browser choice as somehow orthogonal to other objectionable App Store policies; they are part and parcel of an architecture of control that tilts commerce into coercive, centralising App Stores. Web OTP (for easier/faster sign-in).

Google 121

Google Mobile Engineering Internet 121

Smashing Magazine

JANUARY 6, 2020

Alternatively, you can also use Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). Paddy Ganti’s script constructs two URLs (one normal and one blocking the ads), prompts the generation of a video comparison via WebPageTest and reports a delta.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik), Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). Baseline performance cost matters.

Performance 104

Performance Cache Network Metrics 104