Brendan Gregg

FEBRUARY 28, 2023

References I've reproduced the references from my SREcon22 keynote below, so you can click on links: [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] , Jul 2008 [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] , 2010 [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency?

Performance 52

Performance Latency Cache Virtualization 52

CSS - Tricks

APRIL 1, 2021

Speed is also something Google considers when ranking your website placement on mobile. With all of this in mind, I thought improving the speed of my own version of a slow site would be a fun exercise. Compressing, minifying and caching assets. On the flip side, Firefox made their webpages load 2.2 Text-based assets.

Cache 92

Cache Social Media Media Website 92

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

Alex Russell

DECEMBER 18, 2022

We're burning our inheritance and polluting the ecosystem on shockingly thin, perniciously marketed claims of "speed" and "agility" and "better UX" that have not panned out at all. That is, what was the average device in 2016? As this series has emphasised in years past, Average Selling Price ( ASP ) is destiny.

Performance 113

Performance Network Mobile Latency 113

KeyCDN

JANUARY 31, 2019

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. As of 2016, Bucharest alone had a population of over 1.83 According to Wikipedia , Romania ranked 5th place worldwide for the average connection speed of 38.60Mb/s.

Internet 48

Internet Internet Ecommerce Speed 48

KeyCDN

OCTOBER 24, 2018

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. As of 2016, there were just over 5.1 In terms of Internet speed, Finland ranks as one of the fastest countries in the world. penetration rate.

Internet 48

Internet Internet Speed Network 48

Smashing Magazine

OCTOBER 26, 2018

In addition to MVC separation, we can (for security reasons or speed improvements) place the JS App on a separate server like in the schema below: Decoupled WordPress diagram. on December 6th, 2016. Large preview ). Advantages Of Using The Decoupled Approach. Working With WordPress REST API. Setting Up A Project. post_slug || !

Cache 78

Cache Website Speed Database 78

SQL Performance

JUNE 21, 2019

While hardware such as intelligent SANs, Solid State Disk, and other advancements have helped speed things up, wasted space in index can translate to wasted space in the buffer pool as well as wasting more I/O. SQL Server Database Maintenance plans prior to SQL Server 2016 only allowed to rebuild or reorganize all indexes.

Servers 49

Servers Azure Hardware Database 49

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

SQL Performance

APRIL 8, 2019

This processor has a base clock speed of 2.0GHz, with an all-core boost speed of 2.55GHz, and a max boost clock speed of 3.0GHz. 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.

Azure 42

Azure Virtualization Storage Benchmarking 42

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 ). Here I assumed a particular analytical function for the amount of memory traffic as a function of cache size to scale the bandwidth time.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

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. The core does not have enough load bandwidth to perform all of these extra load operations at full speed.

Cache 40

Cache C++ Latency Hardware 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. Up to this point I had been hitting this bug randomly.

Programming 79

Programming Hardware Cache Code 79

Rigor

JULY 2, 2019

Because HTTP redirection is handled server-side, it is typically faster than client-side redirection, especially if the browser can cache the new location of the requested file. Originally published September 2016, updated July 2019. Using JavaScript Redirection. REQUEST A FREE TRIAL OF RIGOR.

Mobile 60

Mobile Traffic Google Latency 60

Alex Russell

OCTOBER 22, 2017

JavaScript is the single most expensive part of any page in ways that are a function of both network capacity and device speed. Add onto that the yawning chasm between low-end and high-end device performance thanks to chip design factors like cache sizes, and it can be difficult to know where to set a device baseline.

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 21, 2019

Let’s analyze how these three methods compare to each other, in terms of speed and the amount of data retrieved. Hence, the jump from REST to GraphQL represents a great deal for speed, because we are able to render a component with only one request. Native Client-Side Cache/Data Store. Extensibility And Re-purposing.

Social Media 64

Social Media Database Media Website 64

Smashing Magazine

JULY 6, 2021

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. From a developer perspective, not only static assets need to be cached on a CDN. Look out for: Caching of images and content via CDN.

Cache 143

Cache Website Mobile Google 143