Brendan Gregg

JULY 15, 2019

At over 700 pages, it covers CPUs, memory, disks, file systems, networking, multiple languages, applications, containers, hypervisors, security analysis, and the Linux kernel. - I've been helping lead BPF observability since 2014, and I'm a major contributor and maintainer for the front-ends. . -

Systems 111

Systems Performance Education Technology 111

SQL Server According to Bob

SEPTEMBER 26, 2016

Performance issues surrounding Availability Groups typically were related to disk I/O or network speeds. As we moved towards SQL Server 2014, the pace of hardware accelerated. We needed to start thinking about how fast can we replicate to a synchronous secondary replica in terms of % of the speed of a standalone workload.

Availability 40

Availability Servers Hardware Benchmarking 40

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. Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

Abhishek Tiwari

NOVEMBER 3, 2018

Case-in-point, most enterprise CMS vendors lack robust full-site content delivery network (CDN) integration. A few months back, I was pulled into a scenario where a business has been working with a leading CMS vendor to roll-out a network of multi-regional websites.

Systems 63

Systems Cache Website Network 63

Smashing Magazine

DECEMBER 2, 2021

Good ol’ PerfPlanet is back for another season with all things speed and web performance. Lean UXMas has been publishing each advent since 2014 and is a collection of the most popular articles from this year’s Agile and Lean UX latest news. Jump to table of contents ?. PerfPlanet Calendar. id24conf on Twitter. Lean UXMas.

Design 120

Design Development Programming Website 120

Alex Russell

JUNE 22, 2022

World-class experts in graphics, networking, cryptography, databases, language design, VM implementation, security, usability (particularly usable security), power management, compilers, fonts, high-performance layout, codecs, real-time media, audio and video pipelines, and per- OS specialisation are required.

Engineering 124

Engineering Traffic Government Google 124

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 Google 52

Brendan Gregg

AUGUST 8, 2017

And here's an excerpt from [Linux] today (include/linux/sched/loadavg.h): #define EXP_1 1884 /* 1/exp(5sec/1min) as fixed-point */ #define EXP_5 2014 /* 1/exp(5sec/5min) */ #define EXP_15 2037 /* 1/exp(5sec/15min) */. Anyway, the following patch seems to make the load average much more consistent WRT the subjective speed of the system.

Latency 111

Latency Metrics C++ Systems 111

Enprowess

JANUARY 11, 2022

Thus, the entire website development methodology benefits from the boosted speed and saves times by using these top front end frameworks. PWAs can save the time and efforts required to develop an entire native application for multiple platforms from scratch, hence speeding up the time to market and enhancing audience reach.

Virtualization 64

Virtualization Website Speed Mobile 64

Brendan Gregg

SEPTEMBER 5, 2017

Both Xen and KVM have had many performance and security improvements, and workloads can now be tuned to run at almost bare metal speeds (say, a 3% loss or less). At my employer we sometimes use SR-IOV for direct network interface access, and NVMe for direct disk access. Outside of EC2, many other providers are deploying on KVM.

Virtualization 75

Virtualization AWS Engineering Hardware 75

Speed Curve

JUNE 10, 2015

Companies looking to these regions for their next billion users need to keep in mind that these users are on underpowered phones over slow networks with high data costs. Here’s Kadlec’s related talk from Velocity 2014 in New York: The path to performance. Reaching everyone. So, how do you get your entire team excited by it?

Metrics 40

Metrics Design DevOps Website 40

Brendan Gregg

JULY 14, 2019

At over 700 pages, it covers CPUs, memory, disks, file systems, networking, multiple languages, applications, containers, hypervisors, security analysis, and the Linux kernel. - I've been helping lead BPF observability since 2014, and I'm a major contributor and maintainer for the front-ends. . -

Systems 40

Systems Performance Education Technology 40

CSS Wizardry

MARCH 3, 2019

The best request is the one that never happens: in the fight for fast websites, avoiding the network is far better than hitting the network at all. Any asset that carries the no-store directive will always hit the network, no matter what. How is your knowledge of caching and Cache-Control headers? Now we’d use no-store.

Cache 270

Cache Latency Strategy Servers 270

Brendan Gregg

NOVEMBER 29, 2017

Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. In this configuration, the AMI and boot is paravirt (PV), the kernel is making hypercalls instead of privileged instructions, and the system is using paravirt network and storage drivers. AWS called this [enhanced networking]. Impressive!

Virtualization 110

Virtualization AWS Hardware Storage 110

Brendan Gregg

NOVEMBER 28, 2017

Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. In this configuration, the AMI and boot is paravirt (PV), the kernel is making hypercalls instead of privileged instructions, and the system is using paravirt network and storage drivers. AWS called this [enhanced networking]. Impressive!

Virtualization 40

Virtualization AWS Hardware Storage 40

Speed Curve

JUNE 14, 2021

To overcome some of these challenges, we built our own Java-based player, complete with caching, content compression, and even bandwidth detection so it could switch between video, audio, and text versions of a course depending on network speed. Ultimately the business didn’t survive the dotcom bust, but it lit a spark.

Retail 52

Retail Internet Internet Education 52

Rigor

SEPTEMBER 11, 2019

list of those who are making a significant impact on speeding up the web today. Developers representing hundreds of companies work together at these meetups to become masters in performance metrics and the latest trends in measuring site speed.) We at Rigor respect many web performance leaders around the world. Rachel Andrew.

Performance 89

Performance Education Google Website 89