Brendan Gregg

FEBRUARY 28, 2023

This talk originated from my updates to Systems Performance 2nd Edition , and this was the first time I've given this talk in person! CXL in a way allows a custom memory controller to be added to a system, to increase memory capacity, bandwidth, and overall performance. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Alex Russell

MARCH 6, 2021

Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones. A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage.

Performance 124

Performance Network Cache Metrics 124

Adrian Cockcroft

JANUARY 29, 2023

There is no way to model how much more traffic you can send to that system before it exceeds it’s SLA. This is unfortunate, because we’d really like to be able to build systems that have an SLA that we can share with the consumers of our interfaces, and be able to measure how well we are doing.

Lambda 98

Lambda Latency Cache C++ 98

SQL Performance

SEPTEMBER 25, 2019

The general idea is to cache and replay results, saving repeated executions of inner-side operators wherever possible. When a spool is able to replay cached results, this is known as a rewind. You may find it helpful to think of a spool rebind as a cache miss, and a rewind as a cache hit. Lazy Table Spool.

Performance 104

Performance Cache Servers Education 104

SQL Performance

JUNE 21, 2019

I always check backups first when looking at a new system. Prior to SQL Server 2012, the maximum server memory value only applied to the bufferpool, so customers needed to limit the amount of memory the bufferpool could use to save memory for the operating system and other processes. SQL Server 2016 introduced soft-NUMA nodes.

Servers 49

Servers Azure Hardware Database 49

All Things Distributed

JUNE 20, 2017

Since then, AWS has added two more PoPs in Hong Kong, the latest in 2016. Beyond running their web properties and applications, Next Digital also uses Amazon RDS (database), Amazon ElastiCache (caching), and Amazon Redshift (data warehousing). In 2013, AWS opened an office in Hong Kong.

AWS 149

AWS Logistics Cloud Social Media 149

John McCalpin

APRIL 2, 2020

This was a keynote presentation at the “2nd International Workshop on Performance Modeling: Methods and Applications” (PMMA16), June 23, 2016, Frankfurt, Germany (in conjunction with ISC16 ). This includes all architectures, all compilers, all operating systems, and all system configurations.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

SQL Server According to Bob

DECEMBER 18, 2018

Durability: “In database systems , durability is the ACID property which guarantees transactions that have committed will survive permanently. For example, if a flight booking reports that a seat has successfully been booked, then the seat will remain booked even if the system crashes.” – [link]. The Back Story.

Servers 90

Servers Media Cache Storage 90

Smashing Magazine

OCTOBER 26, 2018

WordPress core developers used a system of hooks which allowed other developers to modify or extend certain functionalities. It’s an all-in-one system that is equipped with a working admin interface; it manages database connection, and has a bunch of useful APIs exposed that handle user authentication, routing, and more. post_slug ||

Cache 78

Cache Website Speed Database 78

SQL Performance

JULY 16, 2019

From 2007 until 2016, Intel was able to successfully execute their Tick-Tock release strategy, where they would introduce a new processor microarchitecture roughly every two years (a Tock release). Intel has been stuck at 14nm in the server space since the Broadwell release in Q4 of 2016. So, what has changed my mind?

Servers 46

Servers Hardware Architecture Retail 46

Rigor

SEPTEMBER 3, 2019

To decrease your chances of an attack, start with the following five steps: Ensure you are running the latest versions of software on all systems that deliver your application. Prior to any peak event, take the time to review your CDN’s cache design and offload metrics to determine what improvements can be made.

Website 74

Website Cache Ecommerce Traffic 74

SQL Performance

APRIL 8, 2019

The L3 cache size is 64MB. The slightly newer Intel Xeon E5-26xx v4 (Broadwell) series which was introduced in Q1 of 2016, increased that to 2400MHz. The L3 cache size is 64MB. This 14nm first-generation AMD EPYC 7551 processor has 32 cores and 64 threads, and it works in one or two-socket servers. lanes for I/O connectivity.

Azure 42

Azure Virtualization Storage Benchmarking 42

Alex Russell

APRIL 29, 2021

After 20 years of neck-in-neck competition, often starting from common code lineages, there just isn't that much left to wring out of the system. Consistent improvement is the name of the game, and it can still have positive impacts, particularly as users lean on the system more heavily over time. Some relatively minor additions (e.g.

Media 145

Media Games Education Engineering 145

Percona

JUNE 4, 2023

Before we dive into the differences between MariaDB and MySQL, we will provide a thorough examination of each relational database management system (RDBMS). While originally designed to be a drop-in replacement for MySQL, it evolved into its own distinct database management system and is now maintained and supported by the MariaDB Foundation.

Open Source 52

Open Source Servers Storage Scalability 52

Smashing Magazine

JUNE 26, 2019

Let the web developer handle all of the necessary speed optimizations like caching and file minification while you take on the following design tips and strategies: 1. Before we move on, I’ll just say that this is one way to solve the slow-loading font dilemma: rather than use externally hosted fonts, use your system ones.

Website 110

Website Speed Mobile Design 110

Alex Russell

OCTOBER 22, 2017

Tools and CI systems help them monitor progress & prevent regressions. Some systems show median RTTs near ~100ms for 3G users. Given the conflicted data we see across our other systems, this seems about right as a baseline. The true median device from 2016 sold at about ~$200 unlocked.

Performance 68

Performance Benchmarking Network Mobile 68

SQL Server According to Bob

JANUARY 26, 2017

And we state in the documentation the following regarding tempdb: Transparent Data Encryption and the tempdb System Database. The tempdb system database will be encrypted if any other database on the instance of SQL Server is encrypted by using TDE. For more information about the tempdb system database, see tempdb Database.

Servers 40

Servers Database Azure Cache 40

Randon ASCII

FEBRUARY 25, 2018

In September of 2016 we started noticing random failures when building Chrome – 3 out of 200 builds of Chrome failed when protoc.exe, one of the executables that is part of the build, crashed with an access violation. This was starting to look like a Windows file cache bug.

Programming 79

Programming Hardware Cache Code 79

Smashing Magazine

JANUARY 15, 2019

For the more adventurous/technical, the top (table of processes) command provides similar metrics on most Unix-like operating systems such as macOS and Ubuntu. In 2016, O’Reilly published “ Designing For Sustainability ” by Tim Frick. A particular favorite in the WordPress space is WP Super Cache.

Website Performance 73

Website Performance Website Energy Performance 73

Smashing Magazine

JANUARY 21, 2019

Note : Brad Frost’s “ Atomic Design ” is a great methodology for identifying these common patterns and building a reusable design system. Brad Frost identifies five distinct levels in atomic design for creating design systems. Native Client-Side Cache/Data Store. Large preview ).

Social Media 64

Social Media Database Media Website 64

Nick Desaulniers

NOVEMBER 20, 2016

6 15828: search cache = /etc/ld.so.cache 15828: trying file = /lib/x86_64-linux-gnu/libc.so.6 bin # system installed binaries like nm, gcc. ??? include # system installed headers like stdio.h. ??? lib # system installed libraries, both static and dynamic. ??? Copyright ( C ) 2016 Free Software Foundation, Inc.

C++ 48

C++ Programming Code Virtualization 48

Smashing Magazine

JULY 6, 2021

This data would be collated and authored in a Web Content Management System (WCMS) by a content editor. With Luminary’s 21 years of experience in the digital space, my experience of 17 years in the CMS space as well as our focus on Headless since 2016, here are my two cents on what you should look out for. Microservices architecture.

Cache 143

Cache Website Mobile Google 143