Brendan Gregg

DECEMBER 21, 2019

Embedded C. # # Tone generation from: [link] # # 29-Apr-2019 Brendan Gregg Created this. This is the culmination of five years of work: the BPF kernel runtime, C support, LLVM and Clang support, the BCC front-end, and finally the bpftrace language. This is not my best code, since I hacked it in a hurry, but here it is: #!/usr/bin/python

C++ 52

C++ Education Java AWS 52

Brendan Gregg

DECEMBER 21, 2019

Embedded C. # # Tone generation from: [link] # # 29-Apr-2019 Brendan Gregg Created this. This is the culmination of five years of work: the BPF kernel runtime, C support, LLVM and Clang support, the BCC front-end, and finally the bpftrace language. This is not my best code, since I hacked it in a hurry, but here it is: #!/usr/bin/python

C++ 52

C++ Education Java AWS 52

Rigor

JANUARY 13, 2020

These are the bestsellers in the web performance field, including the good old Speed Up Your Site (2003) by Andy King; Steve Souders’ Even Faster Web Sites (2009) ; Ilya Grigorik’s High Performance Browser Networking (2013) ; Tammy Everts’ Time is Money (2016) ; and a handful of more recent publications.

Performance 75

Performance Social Media Website Website Performance 75

Brendan Gregg

SEPTEMBER 5, 2017

LTS (April 2016). I wrote about it in a previous post, [DTrace for Linux 2016]. Hit Ctrl-C to end. ^C C operation = 'read' usecs : count distribution 0 -> 1 : 0 | | 2 -> 3 : 0 | | 4 -> 7 : 4479 | *| 8 -> 15 : 1028 | | 16 -> 31 : 14 | | 32 -> 63 : 1 | | [.]. The hardest part on Linux is now done: kernel support.

Virtualization 75

Virtualization AWS Engineering Hardware 75

Adrian Cockcroft

JANUARY 29, 2023

I presented this analysis of response time distributions talk in 2016 — at Microxchg in Berlin ( video ). > system.time(wait1 <- normalmixEM(waiting, mu=c(50,80), lambda=.5, I’ve been thinking about this for a long time. That’s why an algorithm is needed to take out the guesswork.

Lambda 98

Lambda Latency Cache C++ 98

Alex Russell

SEPTEMBER 12, 2016

Instead, this article focuses on the strictest common criteria to ensure broad installability as of late 2016. Apps on the homescreen: Should load instantly, regardless of network state. This isn’t to say that they need to function fully offline, but they must put their own UI on screen without requiring a network round trip.

Mobile 54

Mobile Network Education Design 54

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. Things To Consider When Choosing A Headless CMS. Microservices architecture. Omnichannel. For content authors.

Cache 145

Cache Website Mobile Google 145

Brendan Gregg

OCTOBER 7, 2018

C @ns: [256, 512) 10900 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | [512, 1k) 18291 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@| [1k, 2k) 4998 |@@@@@@@@@@@@@@ | [2k, 4k) 57 | | [4k, 8k) 117 | | [8k, 16k) 48 | | [16k, 32k) 109 | | [32k, 64k) 3 | |. ply is also C, whereas bpftrace is C++. # Attaching 2 probes. ^C eBPF does more.

C++ 40

C++ Virtualization Programming Latency 40

Alex Russell

MAY 9, 2022

Reduced network and device capacity correlate with other access challenges. This blindspot usually extends up to the C-suite. Folks with powerful laptops, new iPhones, and low-latency networks are noticing, which is a very bad sign. Do they have a device-class or network condition target ? sales, marketing, etc.)?

Performance 99

Performance Latency Metrics Engineering 99

SQL Performance

SEPTEMBER 2, 2021

SQL Server 2016 brought us STRING_SPLIT , a native function that eliminates the need for many of the custom solutions we’ve needed before. STRING_SPLIT() in SQL Server 2016 : Follow-Up #1. STRING_SPLIT() in SQL Server 2016 : Follow-Up #2. all_columns AS c WHERE EXISTS. ( WHERE Item = c. ) ORDER BY c. [

C++ 46

C++ Servers Testing Performance 46

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. Notes on notation: C[i][j] is invariant in the innermost loop, so I refer to the values in the accumulator as elements of the C array.

Cache 40

Cache C++ Latency Hardware 40

SQL Server According to Bob

FEBRUARY 10, 2019

Network Trace. Looking at network traces helps build our understanding of the problem. Network Layer Overloaded. In contrast to the failing SQL Server login, this is what a network trace looks like when the network layer becomes overloaded and is not completing requests to the SQL Server.

Servers 40

Servers Network Database Systems 40

Smashing Magazine

OCTOBER 26, 2018

When it comes down to how WordPress is programmed, one thing is certain: it doesn’t follow the M odel- V iew- C ontroller (MVC) design pattern that many developers are familiar with. on December 6th, 2016. Improving performance with the decoupled JSON approach. Security concerns. So, What Exactly Is A Decoupled WordPress?

Cache 88

Cache Website Speed Testing 88

Percona

JANUARY 14, 2019

Public API as -a-service has become a good business model: examples include social networks like Facebook/Twitter, messaging as a service like Twilio, and even credit card authorization platforms like Marqeta. So can we use it as our main datastore? Let’s imagine we are running a webservice and provide a public API. voting','maven'] ?

Database 48

Database Analytics Blockchain Healthcare 48