HammerDB

OCTOBER 18, 2019

Nevertheless in this blog sometimes we do publish performance data to highlight best practices or potential configuration pitfalls and although we’ve mentioned this one before it is worth dedicating an entire post to it as this issue seems to appear numerous times running database workloads on Linux. hardware limits: 1000 MHz - 4.00

Benchmarking 63

Benchmarking Performance Hardware C++ 63

The Netflix TechBlog

JUNE 4, 2019

However, the key insight here is that these caches are partially shared among the CPUs, which means that perfect performance isolation of co-hosted containers is not possible. Traditionally it has been the responsibility of the operating system’s task scheduler to mitigate this performance isolation problem. Linux to the rescue?

Cache 251

Cache Latency Airlines Logistics 251

Adrian Cockcroft

FEBRUARY 9, 2023

The layers of platforms start at the bottom with hardware choices such as which CPU architectures and vendors you want to use. The third principle is that the interface to a platform should be driven by the users of the platform. The next layer is operating system platforms, what flavor of Linux, what version of Windows etc.

Engineering 137

Engineering Serverless Lambda AWS 137

Percona

JUNE 20, 2023

In order to understand “segmentation fault,” it is a must to know the basic idea of segmentation and its implementation in C programming. The following are possible causes for segmentation fault: Operating system issues Buggy OS kernel Faulty hardware(specifically memory) Bug in a product (e.g., 0ubuntu1~20.04.1)

Programming 85

Programming C++ Database Virtualization 85

HammerDB

OCTOBER 12, 2018

This post complements the previous best practice guides this time with the focus on MySQL and MariaDB and achieving top levels of performance with the HammerDB MySQL TPC-C test. As is exactly the same with PostgreSQL for system choice a 2 socket system is optimal for MySQL OLTP performance. order by c.

Best Practices 40

Best Practices Scalability Performance C++ 40

Smashing Magazine

JANUARY 11, 2021

Front-End Performance Checklist 2021. Front-End Performance Checklist 2021. This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. Web performance is a tricky beast, isn’t it?

Performance 145

Performance Cache Media Metrics 145

Testsigma

FEBRUARY 3, 2021

Mobiles have different models, screen resolutions, operating systems, network types, hardware configurations, etc. Also, how to test the hardware of the mobile phone itself, is it supporting all the software as it should? Let us have a look at the most popular types of mobile testing for applications and hardware.

Mobile 82

Mobile Testing Hardware C++ 82

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 126

Speed Java AWS Virtualization 126

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. We had specializations in hardware, operating systems, databases, graphics, etc.

Tuning 52

Tuning Benchmarking Engineering C++ 52

The Morning Paper

DECEMBER 8, 2019

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. On the last morning of the conference Daniel Bittman presented some of the work being done in the context of the Twizzler OS project to explore new programming models for NVM. Early performance results.

Hardware 56

Hardware Programming Media Storage 56

Nick Desaulniers

APRIL 6, 2020

May I present to you episode I; “ Off by Two.” halt (); Some sort of very early exception handler; better to sit busy in an infinite loop than run off and destroy hardware or corrupt data, I suppose. Recent work. has given me much fulfilment and a long list of truly awful bugs to recount. halt_loop: while ( true ).

C++ 67

C++ Hardware Code Virtualization 67

Smashing Magazine

JANUARY 6, 2020

Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 103

Performance Cache Metrics Network 103

HammerDB

JANUARY 5, 2019

For example the following chart (with the actual data removed for the reasons described further in this post) shows the HammerDB TPC-C workload run against the same database on different processing architectures (grouped by colour) and speed with the most recent at the top. In all cases this is random data so presents no security challenges.

Benchmarking 40

Benchmarking Database Social Media Scalability 40

Smashing Magazine

NOVEMBER 16, 2021

Touch Design for Mobile Interfaces presents and shares real information on hardware, people, interactions, and environments. To understand touchscreen performance, Steven undertook several studies and found that popular notions of touch accuracy and preferred touch regions are wrong. menus, lists, floating bars, tabs).

Mobile 87

Mobile Design Best Practices Website 87

Sutter's Mill

APRIL 6, 2011

We know that getting full computational performance out of most machines—nearly all desktops and laptops, most game consoles, and the newest smartphones—already means harnessing local parallel hardware, mainly in the form of multicore CPU processing. This is the commoditization of the supercomputer.

Development 40

Development Hardware C++ Games 40

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you time time?

Speed 52

Speed Java AWS Virtualization 52

The Morning Paper

DECEMBER 1, 2019

Moreover, for better performance, the processor may change the order in which writes reach the NVRAM, making it difficult for the NVRAM to even reflect a consistent prefix of the computation. Plus ça change, plus c’est la même chose. Performance evaluation. Instead the authors use the Epoch Based Reclamation scheme (EBR).

Efficiency 60

Efficiency Cache C++ Performance 60

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 40

Speed Java AWS Virtualization 40

John McCalpin

JANUARY 22, 2018

Dr. Damon McDougall gave a short presentation on this study at the IXPUG 2018 Fall Conference ( pdf ) — I originally wrote these notes to help organize my thoughts as we were preparing the IXPUG presentation, and later decided that the extra details contained here are interesting enough for me to post it.

Latency 40

Latency Hardware Code Testing 40

The Morning Paper

JANUARY 19, 2020

Take a trivial example with three components A, B, and C. Now you might say that the system is designed such that A only talks to B, and B only talks to C. But do A and C share the same storage, compute, or network resources for example? In a fast changing world, the effort needed to keep up to date can be daunting.

C++ 50

C++ Systems Software Software 50

Testsigma

JUNE 19, 2020

It supports multi programming languages like Python, Java, C# etc. Selenium consume less hardware support for test cases execution 7. We are using Selenium + JUnit to perform the test case creation and execution. Group testing can’t be perform using JUnit 5. Selenium supports parallel test cases execution 6.

Testing Tools 60

Testing Tools Testing Open Source Java 60

Alex Russell

JUNE 20, 2020

3] Oh, and it should be imperatively programmed with Lisp-in-C's-clothing. Absent compelling content and attentive security and performance focus, it soon retreated to the server. [6]. Meta-platforms enter this calculus with a deficit to maximum capability and performance but (hopefully) gains to reach. high-color image raster.

Hardware 55

Hardware Games Java Media 55

SQL Server According to Bob

DECEMBER 18, 2018

Be sure to deploy SQL Server 2017 CU6 or newer for best data durability and performance results. “. The “forced flush” changes in SQL Server avoid flushes, when possible, in order to improve performance on non-optimized Fua file systems. Performance points of reference: The following charts highlight the increase in performance.

Servers 90

Servers Media Cache Storage 90

The Morning Paper

SEPTEMBER 12, 2019

SQL provides a declarative programming interface, below which the system itself can figure out the most effective execution plans based on data size and statistics, layout, compute hardware etc. Clearly the chosen decomposition can have a big impact on the resulting query performance. Be careful what you ask for (materialize).

Network 44

Network Database Programming Hardware 44

Brendan Gregg

SEPTEMBER 5, 2017

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 | | [.]. As a performance engineer who does kernel tracing, I find the lack of an ID I can trace in the kernel to be pretty annoying.

Virtualization 76

Virtualization AWS Engineering Hardware 76

SQL Server According to Bob

JANUARY 11, 2020

​​ Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information presented after the date of publication. This White Paper is for informational purposes only.

Servers 40

Servers Cache Database Media 40

Smashing Magazine

AUGUST 22, 2021

HTTP/3: Performance Improvements (Part 2). HTTP/3: Performance Improvements (Part 2). In this second part, we will zoom in on the performance improvements that QUIC and HTTP/3 bring to the table for web-page loading. HTTP/3 performance features ( current article ). Robin Marx. 2021-08-23T06:20:00+00:00.

Performance 105

Performance Network Latency Servers 105

O'Reilly

SEPTEMBER 19, 2023

Doubly so as hardware improved, eating away at the lower end of Hadoop-worthy work. And that brings our story to the present day: Stage 3: Neural networks High-end video games required high-end video cards. Google goes a step further in offering compute instances with its specialized TPU hardware.

Hardware 99

Hardware Storage Big Data Blockchain 99