Brendan Gregg

SEPTEMBER 25, 2021

Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? This server is spending about a third of its CPU cycles just checking the time! I also shared setting the clocksource in my talks and in my 2015 [Linux tunables] post. 30.14% in the middle of the flame graph.

Speed 126

Speed Java AWS Virtualization 126

Rigor

JANUARY 13, 2020

Podjarny presents a series of increasingly larger-scope solutions to each issue, including client-side techniques and RESS (Responsive + Server Side). Javascript: The Ultimate Beginner’s Guide to Learn JavaScript Programming Step by Step. You only have a few seconds to get compelling content onto the screen. Javascript by Ryan Turner.

Performance 75

Performance Social Media Website Website Performance 75

Brendan Gregg

JULY 2, 2021

The architecture is: While the bpftrace binary is installed on all the target systems, the bpftrace tools (text files) live on a web server and are pushed out when needed. I see people think like a programmer instead and feel they must start by learning bcc and BPF programming in depth. That will be a quick and useful version 1.

Latency 145

Latency Cache Energy Systems 145

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. It was a great privilege. That's about 24 hours from now!

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

MARCH 16, 2024

2015-2020: Overhead As part of production rollout I did many performance overhead tests, which I've described publicly before: The overhead of adding frame pointers to everything (libc and Java) was usually less than 1%, with one exception of 10%. Back-end servers. Adding anything will cause the same effect.

Java 145

Java Cache Google Hardware 145

Smashing Magazine

AUGUST 9, 2021

It was heralded as an amazing performance revolution, with exciting new features such as server push, parallel streams, and prioritization. We would have been able to stop bundling resources, stop sharding our resources across multiple servers, and heavily streamline the page-loading process. Why Do We Need HTTP/3?

Transportation 145

Transportation Internet Internet Network 145

Randon ASCII

FEBRUARY 25, 2018

The next step was a custom C++ program that opened the just-linked exe and called FlushFileBuffers on it. 2) Most Windows developers have seen 0xC0000005 enough times to remember that it means Access Violation – it means that your program dereferenced memory that it should not have, or in a way that it should not have. failure rate.

Programming 79

Programming Hardware Cache Code 79

Enprowess

MAY 24, 2022

This functionality gives an edge to Reactjs by increasing performance and decreasing programming time compared to another mobile app development platform. Reactjs has the capability of server-side rendering, which offers a power boost to the SEO of a web page or an application and helps in fetching more organic traffic. React Native.

Mobile 52

Mobile Open Source Virtualization Speed 52

Testsigma

JUNE 5, 2021

In 2015, 35% of the internet traffic came from mobile devices, 6 years later, the number is 54.8%. Their maintenance is easier and upgrading, updating, or discarding them from the server is a simple task. These are showcased to prove a single point — how important a mobile phone is! Emulators are extremely cheap. Source: Shopify.

Mobile 52

Mobile Testing Website Testing Tools 52

All Things Distributed

AUGUST 16, 2011

The move to the cloud is projected by 2015 see a reduction of 30% in IT infrastructure costs, which amounts to $7.2 The Cloud First strategy is most visible with new Federal IT programs, which are all designed to be â??Cloud No Server Required - Jekyll & Amazon S3. Cloud Readyâ??; Driving down the cost of Big-Data analytics.

AWS 111

AWS Government Big Data Cloud 111

Jos

JUNE 2, 2018

I remember when I learned about dynamic programming, greedy or divide and conquer algorithms. How would you architecture a non-trivial size web project (client, server, databases, caching layer)? How do you scale it through different servers? It’s about creating awareness amongst both developers and non-developers. Aim for that.

Performance 237

Performance Speed Google Media 237

Brendan Gregg

SEPTEMBER 25, 2021

Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? This server is spending about a third of its CPU cycles just checking the time! I also shared setting the clocksource in my talks and in my 2015 [Linux tunables] post. 30.14% in the middle of the flame graph.

Speed 40

Speed Java AWS Virtualization 40

Percona

JANUARY 14, 2019

As a temporary workaround we can do something like this: SELECT count() FROM rc WHERE (created_utc > ( ( SELECT max(created_utc) FROM rc ) - ((60 * 60) * 24))) AND (subreddit = 'programming') ??count()?? And the results are (here I’m grouping words for each year): For “programming” subreddit: ??year???words????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Database 40

Database Analytics Blockchain Healthcare 40

Smashing Magazine

APRIL 1, 2020

The API makes contents available through any channel and on any device using most favorite tools and programming languages plus it also provides a higher level of security and much better scalability. A lot of them have drag and drop, this makes it easy for a person without programming experience to work seamlessly with them.

Open Source 103

Open Source Website Mobile Code 103

Brendan Gregg

SEPTEMBER 25, 2021

Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? This server is spending about a third of its CPU cycles just checking the time! I also shared setting the clocksource in my talks and in my 2015 Linux tunables post. 30.14% in the middle of the flame graph.

Speed 52

Speed Java AWS Virtualization 52

Rigor

SEPTEMBER 11, 2019

Patrick is a London-based software developer who specializes in web performance and who describes himself as enjoying “working the entire stack, back-end to front-end, CDN to server.” The future of HTTP/2 server push. Philip Walton is a senior developer programs engineer at Google working on Chrome and the Web Platform.

Performance 89

Performance Education Google Website 89

Brendan Gregg

JULY 2, 2021

The architecture is: While the bpftrace binary is installed on all the target systems, the bpftrace tools (text files) live on a web server and are pushed out when needed. I see people think like a programmer instead and feel they must start by learning bcc and BPF programming in depth. That will be a quick and useful version 1.

Open Source 40

Open Source Latency Cache Energy 40

Jos

JUNE 2, 2018

I remember when I learned about dynamic programming, greedy or divide and conquer algorithms. How would you architecture a non-trivial size web project (client, server, databases, caching layer)? How do you scale it through different servers? It’s about creating awareness amongst both developers and non-developers. Aim for that.

Performance 130

Performance Speed Google Media 130

Brendan Gregg

AUGUST 8, 2017

Thankfully, I found some older linux-devel mailing list archives, rescued from server backups, often stored as tarballs of digests. 90491 N|rnberg (Germany) Consulting+Networking+Programming+etc'ing 42. It's time in some cgroup paths, but this server is not doing much disk I/O. My search was starting to feel cursed.

Latency 111

Latency Metrics C++ Systems 111