Brendan Gregg

SEPTEMBER 25, 2021

Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? What about short-lived processes, like a service restarting in a loop? I also shared setting the clocksource in my talks and in my 2015 [Linux tunables] post. top(1) showed that only the Cassandra database was consuming CPU.

Speed 126

Speed Java AWS Virtualization 126

Brendan Gregg

JULY 2, 2021

E.g., to see process execution with timestamps using execsnoop(8): # execsnoop-bpfcc -T. Low frequency events such as process execution should be negligible to capture. execsnoop New processes (via exec(2)) table. I see people think like a programmer instead and feel they must start by learning bcc and BPF programming in depth.

Latency 145

Latency Cache Energy Systems 145

Brendan Gregg

FEBRUARY 28, 2023

I'm now program co-chair for SREcon 2023 APAC, and our 2023 conference is June 14-16 in Singapore. And now, helping bring USENIX conferences to Australia by giving the first keynote: I could not have scripted or expected it. The call for participation ends on March 2nd 23:59 SGT!

Performance 110

Performance Latency Cache Virtualization 110

Testsigma

FEBRUARY 19, 2021

To make this work efficiently, you would need to have good programming skills and deep knowledge of how Android works. XCUITest is a UI testing framework for iOS apps that was launched by Apple in 2015. It helps the developers and QAs to test the UI of native iOS applications by leveraging Swift or Objective C programming language.

Testing Tools 57

Testing Tools Mobile Testing Java 57

Randon ASCII

AUGUST 16, 2018

And after a lot of false starts and some hard work I figured out how Chrome, gmail, Windows, and our IT department were working together to prevent me from typing an email, and in the process I found a way to save a significant amount of memory for some web pages in Chrome. But apparently Chrome kept on pumping messages. During the 2.81

Programming 75

Programming Virtualization Code Processing 75

Percona

JUNE 4, 2023

Introduction: MariaDB vs. MySQL The goal of this blog post is to evaluate, at a higher level, MariaDB vs. MySQL vs. Percona Server for MySQL side-by-side to better inform the decision making process. Efficient data processing and indexing, making it optimal for executing queries and handling large datasets.

Open Source 52

Open Source Servers Storage Scalability 52

Randon ASCII

FEBRUARY 25, 2018

The next step was a custom C++ program that opened the just-linked exe and called FlushFileBuffers on it. 1) Building Chrome very quickly causes CcmExec.exe to leak process handles. Each build can leak up to 1,600 process handles and about 100 MB. failure rate. 7-second sleep after linking exes: 2% failure rate.

Programming 79

Programming Hardware Cache Code 79

The Morning Paper

OCTOBER 22, 2019

The only caveat to the results is that the interviews were conducted in 2015, and this is a fast-moving space. The authors place it within the overall analysis process like this: That looks a lot more waterfall-like than my experience of reality though. What is EDA? It comes after data ingestion, wrangling and profiling (i.e.,

Programming 40

Programming Software Engineering Database Analytics 40

Percona

JANUARY 14, 2019

Processed 4.15 Processed 4.15 Processed 8.19 Processed 8.19 Processed 4.15 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()?? Processed 3.05

Database 40

Database Analytics Blockchain Healthcare 40

Enprowess

NOVEMBER 2, 2021

Flutter is a cross-platform, open-source framework that functions with a programming language called Dart, developed by Google in 2011. Performance : multi-processing and parallel threading is not supported, which leads to slow performance. Additionally, its deployment process is well documented. What is Flutter? – An overview.

Development 52

Development Social Media Mobile Code 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 One particular early use case for AWS GovCloud (US) will be massive data processing and analytics.

AWS 111

AWS Government Big Data Cloud 111

Brendan Gregg

FEBRUARY 28, 2023

I'm now program co-chair for SREcon 2023 APAC, and our 2023 conference is June 14-16 in Singapore. And now, helping bring USENIX conferences to Australia by giving the first keynote: I could not have scripted or expected it. It was a great privilege. The call for participation ends on March 2nd 23:59 SGT!

Performance 52

Performance Latency Cache Virtualization 52

Testsigma

JUNE 5, 2021

In 2015, 35% of the internet traffic came from mobile devices, 6 years later, the number is 54.8%. Testsigma will give you an added advantage over other automation tools as with Testsigma you can write the automated test in plain English without learning any programming languages. Hence, automation is easier, and quality is better.

Mobile 52

Mobile Testing Website Testing Tools 52

Enprowess

MAY 24, 2022

The primary purpose of React is to simplify the process of web development that is fast, scalable, and simple. This functionality gives an edge to Reactjs by increasing performance and decreasing programming time compared to another mobile app development platform. Famous Applications Supported by ReactJS. Key features of ReactJS.

Mobile 52

Mobile Open Source Virtualization Speed 52

Jos

JUNE 2, 2018

I remember when I learned about dynamic programming, greedy or divide and conquer algorithms. It’s better to learn the fundamentals than the library There are still lots of job descriptions and interview processes that focus on libraries and not the underlying technology. Get involved in the interview process.

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? What about short-lived processes, like a service restarting in a loop? I also shared setting the clocksource in my talks and in my 2015 [Linux tunables] post. top(1) showed that only the Cassandra database was consuming CPU.

Speed 40

Speed Java AWS Virtualization 40

Smashing Magazine

SEPTEMBER 16, 2021

” Quality assurance (QA) is defined as: “A program for the systematic monitoring and evaluation of the various aspects of a project, service, or facility to ensure that standards of quality are being met.” — “ Quality assurance ,” Merriam-Webster. To go further, we need to look at the major risks of the web project.

Automotive 139

Automotive Website Social Media Design 139

Alex Russell

JANUARY 30, 2024

JavaScript-Heavy # Since at least 2015, building JavaScript-first websites has been a predictably terrible idea, yet most of the sites I trace on a daily basis remain mired in script. [1] Fleet device composition has big effects, owing to differences in signal-processing compute availability and spectrum compatibility.

Performance 90

Performance Network Mobile Speed 90

Brendan Gregg

JULY 2, 2021

While basic, I've solved many perf issues with this tool alone, including for misconfigured systems where a shell script is launching failing processes in a loop, and when some minor application is crashing and is restarting every few minutes but has not yet been noticed. ## 2. execsnoop New processes (via exec(2)) table 2. acpid [.]

Open Source 40

Open Source Latency Cache Energy 40

Brendan Gregg

SEPTEMBER 25, 2021

Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? What about short-lived processes, like a service restarting in a loop? I also shared setting the clocksource in my talks and in my 2015 Linux tunables post. top(1) showed that only the Cassandra database was consuming CPU.

Speed 52

Speed Java AWS Virtualization 52

The Netflix TechBlog

NOVEMBER 22, 2019

This entertaining romp through the tech stack serves as an introduction to how we think about and design systems, the Netflix approach to operational challenges, and how other organizations can apply our thought processes and technologies. We share everything attendees need to implement CloudTrail in their own organizations.

AWS 37

AWS Entertainment Open Source Benchmarking 37

Smashing Magazine

AUGUST 9, 2021

We would have been able to stop bundling resources, stop sharding our resources across multiple servers, and heavily streamline the page-loading process. One question I’ve often encountered is, “Why do we need HTTP/3 so soon after HTTP/2, which was only standardized in 2015?” Why Do We Need HTTP/3? What Is QUIC? For HTTP/1.1,

Transportation 145

Transportation Internet Internet Network 145

Rigor

SEPTEMBER 11, 2019

Reading time 16 min Whether you’re a web performance expert, an evangelist for the culture of performance, a web engineer incorporating performance into your process, or someone new to the web performance entirely, you probably identify as curious, excited about new ideas, and always learning. Maximiliano Firtman. Maximiliano Firtman.

Performance 89

Performance Education Google Website 89

Jos

JUNE 2, 2018

I remember when I learned about dynamic programming, greedy or divide and conquer algorithms. It’s better to learn the fundamentals than the library There are still lots of job descriptions and interview processes that focus on libraries and not the underlying technology. Get involved in the interview process.

Performance 130

Performance Speed Google Media 130

Brendan Gregg

AUGUST 8, 2017

This measures demand, which can be greater than what the system is currently processing. 42/3411 43603. . ## History The original load averages show only CPU demand: the number of processes running plus those waiting to run. The load average is an average of the number of runnable processes over a given time period.

Latency 111

Latency Metrics C++ Systems 111

Nick Desaulniers

JANUARY 25, 2015

to be published by CRC Press in time for SIGGRAPH 2015. It’s interesting to see that a lot of graphics programming books seem to follow the format of one author per chapter or at least multiple authors. for our additional code and figures, a mailing list, and sent us a chapter template document detailing the process.

C++ 43

C++ Google Games Open Source 43

Tasktop

DECEMBER 5, 2019

I discovered the best immigration program for our profile was in Quebec. My wife and I applied in July 2015 and started to learn French — a mandatory requirement to move to the province. The interview process was awesome. And for a brief time our emigration plans were put on hold.

Software Engineering 8

Software Engineering Engineering Programming Java 8