High Scalability

APRIL 7, 2021

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Education 100

Education DevOps Scalability Infrastructure 100

Randon ASCII

OCTOBER 1, 2023

47.418 MB is a pretty tiny amount and should take less than 10 ms to fault in (see Hidden Costs of Memory Allocation for details), and there were no new allocations during the trace, so the KiPageFault overhead was definitely excessive. I then looked in the “Virtual Memory Snapshots” table at the Working Set column. That’s crazy.

Processing 98

Processing Efficiency Programming Systems 98

Percona

APRIL 12, 2023

Co-founder Eliot Horowitz recounts ( {coding}bootcamps.io ): “MongoDB was born out of our frustration using tabular databases in large, complex production deployments. The SSPL requires a company that offers MongoDB as a service to publicly release code for all the software used to deliver that service (or have a license from MongoDB).

Open Source 84

Open Source Programming Database Servers 84

Brendan Gregg

APRIL 8, 2022

In this case there's an orange tower (kernel code) that's unusual. of CPU, so it definitely was, and madvise() was calling zap_page_range() that was calling the faults. Premature Optimization I read the kernel code related to madvise() and zap_page_range() from mm/advise.c. The cause I've highlighted here.

Performance 52

Performance Virtualization Code Servers 52

Adrian Cockcroft

FEBRUARY 9, 2023

The third is that the Team Topologies book defined how to create and manage Platform Teams so there’s interest in the terminology and definition. The virtualization and networking platform could be datacenter based, with something like VMware, or cloud based using one of the cloud providers such as AWS EC2.

Engineering 137

Engineering Serverless Lambda AWS 137

VoltDB

MARCH 13, 2024

People generally use the ‘nines’ system to describe availability, with the two most common scenarios being ‘three nines’ and ‘five nines’: With this definition set, let’s now take a quick look at how many companies mess up high availability before they’ve even started trying to achieve it. Get executive “buy-in” This is rule one for a reason.

Availability 52

Availability Latency DevOps Systems 52

ACM Sigarch

OCTOBER 25, 2019

Most existing security features on the timeline fall into one of four categories: • Virtualization—Giving code the illusion that it is in an environment other than the one it is actually being executed on. The data in the above definition could also include instructions. hardware support for malware detection/prevention).

Hardware 98

Hardware Virtualization Architecture Games 98

The Netflix TechBlog

SEPTEMBER 4, 2020

In this article we talk about one such functional area, High Definition Multimedia Interface ( HDMI ), the challenges it brings in relation to Netflix certification on STBs, and our in-house developed automated and objective testing workflows that help us simplify this process. Why test High Definition Multimedia Interface (HDMI) ?

Media 165

Media Testing Entertainment Virtualization 165

Alex Podelko

OCTOBER 28, 2016

While protocol-level recording/playback was (and still is) the mainstream approach to testing applications, it is definitely just one type of load testing using only one type of load generation; such equivalency is a serious conceptual mistake, dwarfing load testing and undermining performance engineering in general.

Performance Testing 100

Performance Testing Technology Technology Testing 100

Sutter's Mill

MARCH 11, 2024

Many of the most damaging recent security breaches happened to code written in MSLs (e.g., recommend using instead of C++ ( example ), so by definition addressing these four would address the immediate NIST/NSA/CISA/etc. We can and do write “good” code and secure applications in C++. issues with C++.

C++ 140

C++ Programming Code Java 140

Particular Software

AUGUST 18, 2020

Microsoft Azure Functions provide a simple way to run your code in the Azure Cloud. They are easy to deploy, scale automatically, and provide many out-of-the-box ways to trigger your code. Rather than pay for an entire virtual machine, you only pay for compute while your code is being executed.

Azure 52

Azure Serverless Programming Transportation 52

Apica

NOVEMBER 15, 2019

To keep up with the testing demand there are a number of feature requirements needed in order to be called a modern performance testing platform: Mega-scale load testing — load testing should scale up to millions of users within seconds to emulate the speed and scale of virtually any high-profile event worldwide.

Performance Testing 40

Performance Testing Testing Performance Games 40

Nick Desaulniers

OCTOBER 24, 2018

Before booting a compiled Linux kernel image on actual hardware, it can save us time and potential headache to do a quick boot in a virtual machine like QEMU. Also, QEMU has more flags than virtually any other binary I’ve ever seen (other than a google3 binary; shots fired), and simply getting it to print to the terminal is ¾ the battle.

C++ 56

C++ Hardware Virtualization Systems 56

Testsigma

DECEMBER 12, 2020

Maybe just changing the code according to browsers and operating systems. Installing dedicated systems or going for virtual environments is a hectic job and will dig deep into your pockets. Manual processes include setting your own lab or virtual systems etc. Challenges In Cross-Browser Testing. Now comes the testing part.

Testing 53

Testing Operating System Website Latency 53

SQL Performance

AUGUST 2, 2019

There are a few additional coding recommendations that Pam Lahoud discusses in her very informative post, TEMPDB – Files and Trace Flags and Updates, Oh My! installed on my virtual machine, which has 8GB of memory (max server memory set to 6 GB) and 4 vCPUs. Now that 2019 CTP 3.2 I have SQL Server 2019 CTP 3.2

Servers 95

Servers C++ Testing Systems 95

Dynatrace

MAY 27, 2021

To implement this option, you specify the OneAgent code module for a specific Dynatrace environment within your Dockerfile , as shown in the images below, and then build and push the image to your registry store such as Amazon Elastic Container Registry ( ECR ). Customer Data Center – Hosts and Virtual Machines. AWS System Manager.

AWS 131

AWS IoT Virtualization Monitoring 131

The Symphonia

DECEMBER 7, 2018

This is definitely an interesting new path, and allows, obviously, for use of languages in Lambda beyond those supported by AWS. These artifacts are shared across functions, and so allow for code and data sharing. lightweight virtualization for Serverless Computing”. Along with Custom Runtimes comes Lambda Layers?—?artifacts

Lambda 40

Lambda Serverless AWS Blockchain 40

The Agile Manager

FEBRUARY 29, 2016

A few short years ago we were content to have an automated build execute every few minutes; today we want every check-in to trigger a build that is promoted through progressively more complex tests in virtual environments managed, instantiated and torn down by scripts.

Government 40

Government Games C++ Virtualization 40

Dynatrace

DECEMBER 2, 2021

Sometimes the Python virtual machine crashes. Impact : This issue affects only those extensions that use native libraries called from Python code distributed with the extension. On the Service-level objectives page, the Actions > Edit SLO entry has been renamed SLO definition. Extension-specific advisory. APM-341209).

Lambda 188

Lambda Azure Metrics Monitoring 188

Sutter's Mill

MAY 1, 2023

The most general form of operator= is operator=: (out this, that) which works as a unified general {copy, move} x { constructor, assignment } operator, and generates all of four of those in the lowered Cpp1 code if you didn’t write a more specific one yourself (see Design Note linked above for details).

C++ 94

C++ Virtualization Lambda Code 94

Alex Podelko

SEPTEMBER 8, 2020

While Federico definitely has good points there, there is some truth in these myths too. The open source load testing tools definitely advanced a lot in both maturity and functionality – but there are many areas where they are behind best commercial tools (and if it matters for a specific user is another subject – for some it may not).

Open Source 223

Open Source Performance Testing Testing Performance 223

Percona

SEPTEMBER 6, 2023

Definitions The examples below use MySQL, but it is helpful to check their competition’s documentation to help explain what a functional index is. MySQL’s definition is a little more convoluted, stating that in MySQL versions 8.0.13 You may also hear this type of index being called Index on expression.

Speed 84

Speed Virtualization Storage Open Source 84

Dynatrace

DECEMBER 6, 2022

What these steps have in common is that monitoring tools are not in sync with new changes in code or topology and this observability data is often siloed within different tools and teams. This approach was presented virtually in the on-demand observability clinic, Getting Started with Observability-Driven DevOps and SRE Automation.

DevOps 213

DevOps Metrics Engineering Speed 213

Smashing Magazine

NOVEMBER 8, 2018

One such plugin is WP Media Offload (the lite version is available here ), which provides a great feature: it seamlessly transfers files uploaded to the Media Library to an S3 bucket, which allows to decouple the contents of the site (such as everything under /wp-content/uploads) from the application code. Large preview ).

AWS 45

AWS Servers Storage Cloud 45

Nick Desaulniers

MAY 25, 2015

Taking the time to do translation to native machine code ahead of time can result in better performance at runtime, but an interpreter can get to work right away without spending any time translating. While interpreting, compiling, and JIT’ing code might sound radically different, they’re actually strikingly similar.

C++ 73

C++ Programming Code Architecture 73

Dynatrace

JULY 10, 2019

Just a single OneAgent per host is required to collect all relevant monitoring data, all the way down to specific lines of code. Virtualization can be a key player in your process’ performance, and Dynatrace has built-in integrations to bring metrics about the Cloud Infrastructure into your Dynatrace environment.

Java 135

Java Best Practices Metrics Azure 135

Alex Podelko

SEPTEMBER 4, 2018

It is designed to run in specific environments, like Java Virtual Machine for instance. The Size and Quality of the Code. If you decide to use Java to write your programs with, be prepared to write longer lines of code to accomplish even the smallest tasks. The Overall Complexity of the Code. Source- Pixabay.

Java 100

Java Performance Programming Virtualization 100

SQL Server According to Bob

APRIL 25, 2017

Another possibility here is a large number of Virtual Log Files but I thought we made advances here in our latest releases. But when I went back and looked at my database definition I was using a 5Gb transaction log. That is a number in decimal which is the actual function pointer to the code to run the task.

Servers 40

Servers Database Processing Virtualization 40

SQL Server According to Bob

APRIL 21, 2017

Another possibility here is a large number of Virtual Log Files but I thought we made advances here in our latest releases. But when I went back and looked at my database definition I was using a 5Gb transaction log. That is a number in decimal which is the actual function pointer to the code to run the task.

Servers 40

Servers Database Processing Virtualization 40

Tim Kadlec

JUNE 17, 2008

Lately I’ve been working quite a bit with some PHP code that made heavy use of global variables. It made the code quite rigid to work with…when changes were made in one function it had a ripple effect on many other key functions and more than once, made me curse global scope. Debugging code also becomes difficult.

Cache 40

Cache Code Virtualization Testing 40

SQL Performance

APRIL 10, 2019

The input is a table or table expression, and the output is a virtual table. Use the following code to create the table, populate it with some sample data, and query it: SET NOCOUNT ON ; USE tempdb ; DROP TABLE IF EXISTS dbo. . ( Ticker ; This code generates the following output: symbol tradedate price -.

C++ 73

C++ Servers Virtualization Code 73

Percona

MAY 15, 2023

In both cases, when using virtually-synchronous replication, the process will require certification from each node and local (by node) write; as such, the number of writes is NOT distributed across multiple nodes but duplicated. Because the solutions still rely on writing in one single node that works as Primary. That is all we need.

Traffic 126

Traffic Scalability Database Servers 126

HammerDB

FEBRUARY 25, 2021

To benchmark a database we introduce the concept of a Virtual User. We could use processes, however given we may want to create hundreds or thousands of virtual users multithreading is the best approach to implement a Virtual User. Basic Benchmarking Concepts. The Python GIL. Tcl Multithreading in parallel.

Programming 67

Programming Benchmarking Virtualization C++ 67

Nick Desaulniers

APRIL 6, 2020

That doesn’t happen in kernel code; the CPU does that on its own. This is also documented in a comment at the start of early_idt_handler_common (“hardware frame” and “error code” together are the exception frame): /* * The stack is the hardware frame, an error code or zero, and the * vector number. */.

C++ 67

C++ Hardware Code Virtualization 67

CSS - Tricks

DECEMBER 23, 2020

Wouldn‘t it be great if we could integrate Lighthouse testing in the continuous integration process so that the impact of our code changes can be displayed inline with each pull request, and so that we can fail the builds if certain performance thresholds are not net? Well, that’s exactly why Lighthouse CI exists! x lhci autorun.

Performance 79

Performance Storage Servers Virtualization 79

The Morning Paper

SEPTEMBER 24, 2020

Being static , it has the advantage that analysis results can be produced solely from source code without the need to execute the program. This means for example that it can be applied to analyse source code repositories and pull requests, be used as an additional test in CI pipelines, and even give assistance in your IDE if it’s fast enough.

Java 80

Java Cache Benchmarking Programming 80

O'Reilly

NOVEMBER 28, 2023

AI users are definitely facing these problems: 7% report that data quality has hindered further adoption, and 4% cite the difficulty of training a model on their data. From a programmer’s perspective, code generation is just another labor-saving tool that keeps them productive in a job that is constantly becoming more complex.

Open Source 111

Open Source Google Artificial Intelligence Infrastructure 111