Percona

OCTOBER 12, 2023

An example of a flame graph can be found below: Each box is a function in the stack, and wider boxes mean more time the system was busy on CPU on these functions. Kubernetes limitations In Linux, by default, performance system events can’t be collected by unprivileged users.

Code 109

Code Tuning C++ Benchmarking 109

Adrian Cockcroft

JUNE 21, 2022

Photo by Adrian I spent six years at Cambridge Consultants, building some interesting systems, managing our Sun workstations and learning a lot, but by then Sun had opened a sales office across the street, and I wanted to find out what they were going to release next, before everyone else.

Tuning 52

Tuning Benchmarking Engineering C++ 52

The Morning Paper

MAY 27, 2019

And this all has to work for whole-system executions, not just the C-language portion of user processes. In the table below, the numbers in each column represent the number of test programs , not the number of individual tests. The MIPS rows show the test suite results on a standard mips64 system. faster for system calls).

C++ 61

C++ Hardware Virtualization Benchmarking 61

Percona

APRIL 12, 2023

Instead of relational (SQL) databases defined primarily through a hierarchy of related sets via tables and columns, their non-relational structure used a system of collections and documents. Though still not “profitable” by many benchmarks, it’s a lot closer to being so, perhaps in a big way.)

Open Source 81

Open Source Programming Database Servers 81

The Morning Paper

JANUARY 16, 2020

The Programmatically Interpretable Reinforcement Learning paper that we looked at last time out contained this passing comment coupled with a link to today’s paper choice: It is known from prior work that such [functional] languages offer natural advantages in program synthesis. That certainly caught my interest.

Programming 56

Programming Benchmarking Testing Systems 56

O'Reilly

JULY 25, 2023

The inspiration (and title) for it comes from Mike Loukides’ Radar article on Real World Programming with ChatGPT , which shares a similar spirit of digging into the potential and limits of AI tools for more realistic end-to-end programming tasks. Setting the Stage: Who Am I and What Am I Trying to Build?

Programming 98

Programming Code Design Benchmarking 98

The Morning Paper

MAY 23, 2019

These techniques work well for scientific programs that are dominated by arrays. However, they are ineffective on object-based programs because objects do not fall neatly into fixed-size blocks and have a more irregular layout. Consider a B-Tree node from the B-tree Java benchmark: Uncompressed, it’s memory layout looks like (a) below.

Cache 61

Cache Benchmarking Hardware Java 61

HammerDB

APRIL 27, 2021

This will show the benchmark options dialog. Benchmark Options. and benchmark set with the bm argument. HammerDB ins multithreaded and the Virtual Users run independently as operating system threads. We recommend the following book as a comprehensive reference to TCL : TCL Programming Language by Ashok P.

Virtualization 73

Virtualization Benchmarking Database Operating System 73

HammerDB

MARCH 25, 2023

Note that by default the build script will query the number of CPUs on the system that HammerDB is running and configure 5X this number for the number of warehouses to build. If HammerDB is running on a separate system from the database under test then you should modify this value accordingly. scripts/tcl/maria/tprocc/maria_tprocc.sh

C++ 83

C++ Virtualization Benchmarking Database 83

The Netflix TechBlog

MAY 21, 2019

Netflix engineers run a series of tests and benchmarks to validate the device across multiple dimensions including compatibility of the device with the Netflix SDK, device performance, audio-video playback quality, license handling, encryption and security. Detect a regression in a test case. We also provide an API client in Python.

Testing 163

Testing AWS Lambda Network 163

The Netflix TechBlog

NOVEMBER 22, 2019

4:45pm-5:45pm NFX 202 A day in the life of a Netflix Engineer Dave Hahn , SRE Engineering Manager Abstract : Netflix is a large, ever-changing ecosystem serving millions of customers across the globe through cloud-based systems and a globally distributed CDN. We explore all the systems necessary to make and stream content from Netflix.

AWS 37

AWS Entertainment Open Source Benchmarking 37

HammerDB

FEBRUARY 25, 2021

HammerDB is a load testing and benchmarking application for relational databases. On high-performance multi-core systems all the supported databases can return performance in the many millions of transactions per minute. This is why the choice of programming language is so important from the outset. Basic Benchmarking Concepts.

Programming 67

Programming Benchmarking Virtualization C++ 67

Dynatrace

NOVEMBER 22, 2022

The nirvana state of system uptime at peak loads is known as “five-nines availability.” In its pursuit, IT teams hover over system performance dashboards hoping their preparations will deliver five nines—or even four nines—availability. How can IT teams deliver system availability under peak loads that will satisfy customers?

Infrastructure 176

Infrastructure Availability Systems Retail 176

Tasktop

JULY 22, 2021

A Flow-Based System. Are they meeting their benchmarks for adoption, are their outcomes improving, are the KPIs different? As SAFe is a flow-based system, each of these metrics is directly applicable and are now incorporated into the SAFe body of knowledge.”. They want to know how they’re doing,” said Dean. Mik Kersten.

Metrics 98

Metrics DevOps Efficiency Benchmarking 98

DZone

FEBRUARY 27, 2021

This begins not only in designing the algorithm or coming out with efficient and robust architecture but right onto the choice of programming language. Recently, I spent some time checking on the Performance (not a very detailed study) of the various programming languages. In Byteland they have a very strange monetary system.

Java 207

Java C++ Benchmarking Programming 207

HammerDB

JULY 5, 2022

Python is a popular programming language, especially for beginners, and consequently we see it occurring in places where it just shouldn’t be used, such as database benchmarking. What programming languages does HammerDB use and why does it matter? Surely any language will do? Background and Concepts.

Benchmarking 98

Benchmarking Database C++ Virtualization 98

Percona

DECEMBER 26, 2023

Querying the data While it is reasonable to create panels showing real-time load in order to explore better the types of queries that can be run against pg_stat_monitor, it is more practical to copy and query the data into tables after the benchmarking has completed its run. A script executing a benchmarking run: #!/bin/bash

Benchmarking 121

Benchmarking Metrics C++ Database 121

The Morning Paper

JUNE 27, 2019

Machine learning systems are stuck in a rut Barham & Isard, HotOS’19. In this paper we argue that systems for numerical computing are stuck in a local basin of performance and programmability. Challenges optimising whole programs. “ Challenges evolving programming languages.

Systems 87

Systems Tuning Programming Innovation 87

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., Systems built with lots of microservices have different operational characteristics to those built from a small number of monoliths, we’d like to study and better understand those differences.

Open Source 61

Open Source Hardware Benchmarking Systems 61

KeyCDN

OCTOBER 2, 2018

It’s awesome for discovering how grid systems, CSS animation, Big Data, etc all play roles in real-world web design. Whether you want a primer on machine learning, benchmarking, functional programming, developing for the cloud or agile practices, there are articles from reputable contributors that can help you get learning.

Development 75

Development Website Design Code 75

HammerDB

JUNE 27, 2022

HammerDB is a software application for database benchmarking. HammerDB has graphical and command line interfaces for the Windows and Linux operating systems. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking. Why HammerDB was developed. Adoption by the TPC.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Scalegrid

MARCH 28, 2024

Benchmarking Cache Speed Memcached is optimized for high read and write loads, making it highly efficient for rapid data access in a basic key-value store. Register now for free and experience the seamless operation of your databases across multi-cloud and hybrid-cloud systems. High data availability is achieved. </p>

Cache 130

Cache Storage Scalability Architecture 130

Rigor

SEPTEMBER 11, 2019

Rachel is also one of the people behind Perch , a PHP content management system (CMS). She works directly with organizations to build clear and coherent products and design systems. Philip Walton is a senior developer programs engineer at Google working on Chrome and the Web Platform. Rick Viscomi. Rick Viscomi. Phil Walton.

Performance 89

Performance Education Google Website 89

The Morning Paper

SEPTEMBER 27, 2020

The study is conducted using a suite of 7 real-world popular scientific applications, and two well-established benchmark suites: Miniaero solves the compressible Navier-Stokes equation. PARSEC is a set of benchmarks for multi-threaded programs. is a set of benchmarks for parallel computing developed by NASA.

Benchmarking 101

Benchmarking Hardware Programming Code 101

Brendan Gregg

MARCH 16, 2024

The problem is that this system has a default libc that has been compiled without frame pointers, so any stack walking stops at the libc layer, producing a partial stack that's missing the application frames. This is pretty common and usually goes unnoticed as the flame graph looks ok at first glance.

Java 145

Java Cache Google Hardware 145

ACM Sigarch

OCTOBER 12, 2020

In fact, according to Stack Overflow’s annual developer survey , JavaScript and Python are now the #1 and #2 most used programming languages, respectively (excluding HTML/CSS and SQL as “programming languages”). There’s some work on hardware proposals for these systems, like Zhu et al.,

C++ 108

C++ Benchmarking Hardware Architecture 108

Scalegrid

JANUARY 12, 2024

Simply put, it’s the set of computational tasks that cloud systems perform, such as hosting databases, enabling collaboration tools, or running compute-intensive algorithms. Such demanding use cases place a great value on systems capable of fast and reliable execution, a need that spans across various industry segments.

Cloud 130

Cloud Virtualization Storage Efficiency 130

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? Microbenchmark os::javaTimeMillis() on both systems. Running this on the two systems saw similar results. Try changing the kernel clocksource.

Speed 126

Speed Java AWS Virtualization 126

Scalegrid

DECEMBER 6, 2023

Understanding this DBaaS system might take some adjusting too similar just how traveling on cruises has its tempo which requires us to get used to optimally benefit from what it provides. The great thing about this is that it provides companies with an unprecedented level of freedom when configuring their system.

Database 130

Database Cloud Hardware Storage 130

Adrian Cockcroft

JANUARY 20, 2023

on Myths and Legends of High Performance Computing  — it’s a somewhat light-hearted look at some of the same issues by the leader of the team that built the Fugaku system I mention below. HPCG is led by Japan’s RIKEN Fugaku system at 16 petaflops, which is 3% of it’s peak capacity. Next generation architectures will use CXL3.0

Architecture 52

Architecture Latency Benchmarking AWS 52

Alex Russell

APRIL 29, 2021

As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. With each team, benchmarks lost are understood as bugs. Provides support for "unread counts", e.g. for email and chat programs.

Media 145

Media Games Education Engineering 145

HammerDB

MAY 26, 2022

If you are not already familiar with the programming languages that HammerDB uses, then this earlier post serves as an ideal introduction to what makes up the highest performing GIL free database benchmarking application. What programming languages does HammerDB use and why does it matter? WHY build from source?

C++ 113

C++ Database Open Source Servers 113

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? Microbenchmark os::javaTimeMillis() on both systems. Running this on the two systems saw similar results. Try changing the kernel clocksource.

Speed 52

Speed Java AWS Virtualization 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? Microbenchmark os::javaTimeMillis() on both systems. Running this on the two systems saw similar results. Try changing the kernel clocksource.

Speed 40

Speed Java AWS Virtualization 40

Percona

SEPTEMBER 1, 2023

It is essentially a set of instructions or a program that is executed automatically in response to specific events or actions occurring within the database. This can affect the overall performance of your database system, potentially leading to slower response times. What is a Trigger in MySQL? KiB in the table cache, 611.12

Cache 60

Cache Database Games Healthcare 60

HammerDB

NOVEMBER 30, 2018

Programming Languages. When you download the source code for HammerDB you can see that the programming language it is written in is called TCL. The agent directory contains the agent code to be run on the system under test to gather the CPU utilisation information. Virtual Users within HammerDB are operating system threads.

Architecture 40

Architecture Virtualization Open Source C++ 40

Smashing Magazine

JANUARY 5, 2022

That’s right; I’ve parked day-to-day design work in favor of becoming someone very active in the design community, focusing on best practice design advice and scalable systems. A Design System Is Not A Sticker Sheet ,” by Corey Roth. I now find myself working as a Designer Advocate at Figma. We’re All Faking It.

Design 126

Design Social Media Website Best Practices 126