Randon ASCII

OCTOBER 15, 2018

A long-standing correctness bug in the Windows file cache: Compiler bug? App Verifier causes your program to run more slowly, both because allocations are now more expensive and because the page-aligned allocations mean that your CPU’s cache is mostly neutered. Linker bug? Windows Kernel bug. You can’t make an O(N^2) algorithm be good.

Processing 57

Processing Cache Programming Virtualization 57

Brendan Gregg

MARCH 16, 2024

Only in extreme circumstances does the cost (in processor time and I-cache footprint) translate to a tangible benefit - circumstances which usually resort to hand-coded assembly anyway. It shouldn't be 10%, unless it's cache effects. AET (Archetectural Event Trace) : Another Intel thing. I haven't used it. (I

Java 145

Java Cache Google Hardware 145

Percona

SEPTEMBER 1, 2023

MySQL triggers are a powerful tool for database administrators and developers, enabling them to automate tasks, enforce data consistency, and respond to events within the database seamlessly. These events, known as trigger events, can include actions like inserting, updating, or deleting records in database tables.

Cache 62

Cache Database Games Healthcare 62

SQL Server According to Bob

DECEMBER 18, 2018

Device level flushing may have an impact on your I/O caching, read ahead or other behaviors of the storage system. FILE_FLAG_NO_BUFFERING is the Win32, CreateFile API flags and attributes setting to bypass file system cache. FILE_FLAG_NO_BUFFERING is the Win32, CreateFile API flags and attributes setting to bypass file system cache.

Servers 90

Servers Media Cache Storage 90

HammerDB

JUNE 27, 2022

An important concept was to simulate database users called Virtual Users in parallel (rather than concurrently) to accurately simulate a real database workload with multiple users running from separate systems. Cached vs Scaled Workloads. The workload also outputted the data from the Virtual Users by simulating individual terminals.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Dynatrace

APRIL 21, 2022

Getting precise root cause analysis when dealing with several layers of virtualization in a containerized world. Figure 1 – Individual Host pages show performance metrics, problem history, event history, and related processes for each host. Missing caching layers. Understanding resource utilization for cost management.

Azure 187

Azure Monitoring Virtualization Metrics 187

Smashing Magazine

JULY 8, 2021

This is the virtual node of Vue.js. Instead, use the getter function because it can be mapped into any vue component using the mapGetters behaving like a computed property with the getters result cached based on its dependencies. It accepts the following arguments: el. This is the element node we have attached the directive to.

Speed 133

Speed Processing Development Code 133

IO River

NOVEMBER 2, 2023

Given its unchanging nature, static content is ideal for caching. When streaming a live event on Netflix, such as a concert or a sports match, HLS ensures that viewers with varying internet speeds all get an optimal experience. By the time the player needs it, the content is already cached and ready to go.

Architecture 52

Architecture Performance Internet Internet 52

HammerDB

JULY 5, 2022

Vuser 1:1 Active Virtual Users configured Vuser 1:TEST RESULT : System achieved 1844256 NOPM from 4232155 PostgreSQL TPM Vuser 1:FINISHED SUCCESS ALL VIRTUAL USERS COMPLETE. buff/cache MiB Swap: 2048.0 buff/cache MiB Swap: 2048.0 Python GIL PostgreSQL wait events. /hammerdbcli auto pgtime.tcl HammerDB CLI v4.4

Benchmarking 98

Benchmarking Database C++ Virtualization 98

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Redundancy is also critical for disaster recovery.

Availability 109

Availability Database Open Source Hardware 109

IO River

NOVEMBER 2, 2023

When streaming a live event on Netflix, such as a concert or a sports match, HLS ensures that viewers with varying internet speeds all get an optimal experience. By the time the player needs it, the content is already cached and ready to go. This is especially true for live content, where immediacy is important.

Architecture 52

Architecture Performance Internet Internet 52

HammerDB

NOVEMBER 5, 2018

The following example takes a snapshot of Oracle metrics showing 3 spikes of activity on a consumer level PC running Oracle within a Virtual Box VM for illustration purposes.The database has been created with the default redo log configuration which is 2 redo logs of 200MB in size each. so what are your options? Why is this the case?

Benchmarking 40

Benchmarking Database C++ Virtualization 40

Alex Russell

APRIL 29, 2021

Pointer Events. Now in development in WebKit after years of radio silence, WebXR APIs provide Augmented Reality and Virtual Reality input and scene information to web applications. An extension to Service Workers that enables browsers to present users with cached content when offline. It was delayed by iOS for five years.

Media 145

Media Games Education Engineering 145

IO River

NOVEMBER 2, 2023

Consider an example where a company is running multiple virtual machines (VMs) on a cloud provider. ‍Businesses can adjust configurations to manage everything from basic distribution settings to intricate geo-targeted content caching and delivery strategies, all with the same ease.‍‍2. ‍For CDNs, redundancy is really important.

Open Source 52

Open Source DevOps AWS Azure 52

SQL Server According to Bob

DECEMBER 31, 2018

In my previous blog posts, I highlighted the importance of using Event Sequence as the sort key. Some of the feedback has been that sorting can be a cumbersome operation because: Using sys.fn_xe_file_target_read_file the XML has to be queried and indexed which can take time and space, followed by the order by event sequence query.

Efficiency 40

Efficiency Code Servers Cache 40

Enprowess

SEPTEMBER 7, 2021

uses an event-driven and non-blocking I/O model, so it is practical and lightweight. React is an open-source front-end library based on JavaScript, created and maintained by Facebook, and is well known for its virtual DOM feature. The performance of React improves because of the Virtual DOM algorithm. Faster virtual DOM.

Open Source 52

Open Source Virtualization Programming Servers 52

Smashing Magazine

JULY 16, 2020

React events will be grouped under the “User Timing” label. A graph (known as a flamegraph) will appear with all of the event handlers and components of your React app. Splitting code assists with the browser’s cache resources and with code that doesn’t change often. Virtualize Long Lists. react-virtualized.

Performance 121

Performance Code Virtualization Processing 121

IO River

NOVEMBER 2, 2023

Terraform's declarative nature makes this adaptation straightforward.‍Consider an example where a company is running multiple virtual machines (VMs) on a cloud provider. In the event of a specific Point of Presence (PoP) failing, businesses need an immediate fallback. For CDNs, redundancy is really important.

Open Source 40

Open Source DevOps AWS Azure 40

Randon ASCII

AUGUST 16, 2018

When a Windows program stops pumping messages there will be ETW events emitted to indicate exactly where this happened , so those types of hangs are trivial to find. So I modified my virtual memory scanner to count how many blocks were in the CFG region (just look for the 2 TiB reservation) and how many blocks were tagged as executable.

Programming 75

Programming Virtualization Code Processing 75

Enprowess

MARCH 10, 2022

For applications that have multiple events. Inbuilt features of angular such as Rxjs, AngularCLI are more powerful to make channels of exchanging info and in independent event handling. React’s performance has dramatically improved after introducing the virtual DOM in the framework. Where to Use React. React Performance.

Development 52

Development Google Open Source Servers 52

SQL Server According to Bob

JANUARY 11, 2020

The modifications persist even in the event of a system failure. Stable media is commonly physical disk storage, but other devices and certain caching facilities qualify as well. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations.

Servers 40

Servers Cache Media Hardware 40

All Things Distributed

OCTOBER 2, 2017

VPC Endpoints give you the ability to control whether network traffic between your application and DynamoDB traverses the public Internet or stays within your virtual private cloud. percent availability in the event of a server, a rack of servers, or an Availability Zone failure.

Internet 128

Internet Internet AWS Performance 128

SQL Server According to Bob

JANUARY 11, 2020

Time of Last Access The time of last access is a caching ​​ algorithm ​​ that enables ​​ cache ​​ entries to be ordered by their ​​ access times.

Servers 40

Servers Cache Database Media 40

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. This knowledge will give you the best optimization target for ongoing efforts.

Performance 145

Performance Cache Media Metrics 145