HammerDB

APRIL 19, 2023

Regardless of whether the computing platform to be evaluated is on-prem, containerized, virtualized, or in the cloud, it is crucial to consider several essential factors. From this data, it can be argued that HammerDB is a better candidate to test MySQL database engine and CPU performance. cpu_utilization_%_in_kernel_mode 29.70

Performance 54

Performance Benchmarking Cache Storage 54

Dynatrace

NOVEMBER 5, 2019

Microsoft offers a wide variety of tools to monitor applications deployed within Microsoft Azure, and the Azure Monitor suite includes several integration points into the enterprise applications, including: VM agent – Collects logs and metrics from the guest OS of virtual machines. Available as an agent installer). Migrating to the cloud.

Azure 137

Azure Artificial Intelligence Metrics Innovation 137

HammerDB

FEBRUARY 26, 2024

This is particularly important when running automated workloads back-back to generate a performance profile for a progressively increasing number of virtual users. The history list length that can be queried is the number of undo log pages that contain changes.

C++ 62

C++ Cache Database Virtualization 62

ACM Sigarch

MAY 31, 2023

Heterogeneous and Composable Memory (HCM) offers a feasible solution for terabyte- or petabyte-scale systems, addressing the performance and efficiency demands of emerging big-data applications. However, building and utilizing HCM presents challenges, including interconnecting various memory technologies (e.g.,

Latency 52

Latency Hardware Cache Architecture 52

Percona

MARCH 17, 2023

For example, a higher number of data samples ingested per second or a monitoring database with a huge number of tables (1000+) can affect performance; similarly, the configuration for exporters or a custom metric resolution can also have an impact on the performance of a PMM server host. Virtual Memory utilization was averaging 48 GB of RAM.

Monitoring 100

Monitoring Scalability Cache Database 100

SQL Performance

NOVEMBER 18, 2019

Migrating an on-premises SQL Server instance to an Azure Virtual Machine (VM) is a common method to migrate to Azure. Microsoft has helped simplify things by creating multiple types of virtual machines. Memory optimized – High memory-to-CPU ratio, relational database servers, medium to large caches, and in-memory analytics.

Azure 76

Azure Benchmarking Storage Virtualization 76

Randon ASCII

JULY 11, 2022

Downloads go through the cache, the cache is saved to disk, and saves to disk are slowed by (some) anti-virus software. I’d been testing on a virtual machine in a data center that I had access to, purely because this machine has an internet connection that runs at over 2 Gbps. It looks like this can happen. Case closed.

Cache 105

Cache Energy Google Processing 105

ScaleOut Software

JULY 21, 2020

ScaleOut StateServer® Pro Adds Analytics to In-Memory Data Grids . In-Memory Data Grids for Fast-Changing Data. For more than fifteen years, ScaleOut StateServer® has demonstrated technology leadership as an in-memory data grid (IMDG) and distributed cache.

Analytics 52

Analytics Airlines Cache Scalability 52

ScaleOut Software

JULY 21, 2020

ScaleOut StateServer® Pro Adds Analytics to In-Memory Data Grids . In-Memory Data Grids for Fast-Changing Data. For more than fifteen years, ScaleOut StateServer® has demonstrated technology leadership as an in-memory data grid (IMDG) and distributed cache.

Analytics 52

Analytics Airlines Cache Scalability 52

Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] , Apr 2018 [Cutress 19] Dr. DDR6: Here's What to Expect in RAM Modules,” [link] , Nov 2020 [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] , Jul 2020 [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 52

Performance Latency Cache Virtualization 52

HammerDB

OCTOBER 17, 2018

However most people use HammerDB with keying and thinking time disabled and therefore each virtual user can approximately drive the CPU resources of one CPU core on the database server. By default each virtual user has the concept of a home warehouses where approximately 75% of its workload will take place.

C++ 40

C++ Testing Virtualization Cache 40

All Things Distributed

DECEMBER 18, 2012

May 28 - Virtual Time and Global States of Distributed Systems , Friedemann Mattern, Parallel and Distributed Algorithms, North-Holland (1989) , p. Jul 4 - Leases: An efficient fault-tolerant mechanism for distributed file cache consistency , Gray, Cary, and David Cheriton, Vol. Traiger, Modeling in Data Base Management Systems, G.M.

Operating System 144

Operating System Cache AWS Scalability 144

Smashing Magazine

SEPTEMBER 20, 2021

Web scraping can be used to harvest marketing data, such as identifying good keywords for advertising campaigns, identifying trending topics for blog posts, or identifying influencers in important blogs and news sites. These services vary considerably in their capabilities and the depth of data that is collected. More after jump!

Website 90

Website Analytics Cache Google 90

The Netflix TechBlog

NOVEMBER 9, 2022

While we understand it’s virtually impossible to achieve a linear increase in throughput as the number of vCPUs grow, a near-linear increase is attainable. We also see much higher L1 cache activity combined with 4x higher count of MACHINE_CLEARS. Cache line is a concept similar to memory page?—?a

Hardware 363

Hardware Cache Performance Latency 363

KeyCDN

JANUARY 23, 2020

RUM gathers data from real life users to analyze application performance. This process should not be confused with synthetic monitoring which gathers data through synthetic transactions such as pinging a service. Synthetic and real user data can be used together in digital experience monitoring (DEM). Usage performance.

Strategy 72

Strategy Metrics Monitoring Servers 72

Scalegrid

OCTOBER 2, 2019

The demand for Redis is skyrocketing across dozens of use cases, particularly for cache, queues, geospatial data, and high speed transactions. Redis, the #1 key-value store and top 10 database in the world, has grown by over 300% in popularity over that past 5 years, per the DB-Engines knowledge base.

Azure 37

Azure Cloud Open Source Virtualization 37

ACM Sigarch

FEBRUARY 23, 2018

Engineers, like economists, deal with large amounts of data and pride ourselves on our clinical ability to analyze and solve complex problems. Virtualization, for instance, was being addressed by IBM in the 1960s. I recall heated discussions 20+ years ago on whether speculative data in caches improves or degrades cache performance.

Architecture 47

Architecture Cache Hardware Virtualization 47

Brendan Gregg

AUGUST 18, 2019

bpftrace uses BPF (Berkeley Packet Filter), an in-kernel execution engine that processes a virtual instruction set. There are also two modes visible, one between 1 and 2 milliseconds, and another between 8 and 16 milliseconds: this sounds like cache hits and cache misses. Builtin variables include: Variable Description.

Latency 68

Latency C++ Cache Programming 68

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. The raw timing data used to generate the graph can be found here.

Processing 57

Processing Cache Programming Virtualization 57

The Netflix TechBlog

SEPTEMBER 24, 2021

As described by the white paper Apple ProRes ( link ), the target data rate of the Apple ProRes HQ for 1920x1080 at 29.97 Uploading and downloading data always come with a penalty, namely latency. is 220 Mbps. Improved Architecture In order to address the limitations of our initial architecture, we proceeded to make some optimizations.

Cloud 237

Cloud Media Storage Cache 237

High Scalability

OCTOBER 3, 2019

The demand for Redis is skyrocketing across dozens of use cases, particularly for cache, queues, geospatial data, and high speed transactions. Redis, the #1 key-value store and top 10 database in the world, has grown by over 300% in popularity over that past 5 years, per the DB-Engines knowledge base.

Azure 23

Azure Cloud Open Source Cache 23

Smashing Magazine

JUNE 30, 2021

First and foremost, this allows you to implement arbitrarily complex caching behavior, but it has also been extended to let you tap into long-running background fetches, push notifications, and other functionality that requires code to run without an associated page. If done without care, workers can negatively affect UI responsiveness.

Games 145

Games Architecture Code C++ 145

Brendan Gregg

MARCH 16, 2024

It fails because of a compiler optimization where the frame pointer register is used to store data instead of the frame pointer, but it's just a number so the profiler is unaware this happened and tries to match that address to a function symbol and fails (it is therefore an unknown symbol). You usually get an extra junk frame.

Java 145

Java Cache Google Hardware 145

All Things Distributed

SEPTEMBER 3, 2013

Amazon ElastiCache is a fully managed, in-memory caching service for customers to optimize the latency, performance and cost of their read workloads. As the amount of data stored increases constantly, the amount of memory needed also goes up. For features that need data structures like sorted sets (e.g.,

Cache 129

Cache Cloud Performance Retail 129

Percona

APRIL 17, 2023

We’ll also go over some best practices for MongoDB security as well as MongoDB data modeling. Operating System (OS) settings Swappiness Swappiness is a Linux kernel setting that influences the behavior of the Virtual Memory manager when it needs to allocate a swap, ranging from 0-100. By default, it uses 50% of the memory + 1 GB.

Best Practices 52

Best Practices Design Tuning Database 52

Smashing Magazine

APRIL 11, 2022

We can use the preload attribute for the HTML link element to optimize loading performance by ensuring that the browser discovers the resource earlier, downloads it, and caches it. This new attribute can be assigned to virtually any HTML element that loads some kind of resources like images and scripts and affects its relative priority.

Media 70

Media Tuning Metrics Google 70

SQL Server According to Bob

DECEMBER 18, 2018

SQL Server relies on Forced-Unit-Access (Fua) I/O subsystem capabilities to provide data durability, detailed in the following documents: SQL Server 2000 I/O Basic and SQL Server I/O Basics, Chapter 2. Be sure to deploy SQL Server 2017 CU6 or newer for best data durability and performance results. “. The Back Story. 4 Socket, TPCC.

Servers 90

Servers Media Cache Storage 90

Scalegrid

FEBRUARY 8, 2024

A distributed storage system is foundational in today’s data-driven landscape, ensuring data spread over multiple servers is reliable, accessible, and manageable. Understanding distributed storage is imperative as data volumes and the need for robust storage solutions rise.

Storage 130

Storage Systems Big Data Azure 130

The Morning Paper

SEPTEMBER 24, 2020

Static analysis of Java enterprise applications: frameworks and caches, the elephants in the room , Antoniadis et al., Instead, analyses expect their users to provide customization for web applications, which is a significant burden, virtually never overcome in practice. PLDI’20. Introducing JackEE. sound-modulo-analysis.

Java 80

Java Cache Benchmarking Programming 80

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

Percona

APRIL 7, 2023

I’ve used a fourth instance to host a PMM server to monitor servers A and B and used the data collected by the PMM agents installed on the database servers to compare performance. In MySQL, considering the standard storage engine, InnoDB , the data cache is called Buffer Pool. In PostgreSQL, it is called shared buffers.

Tuning 136

Tuning Cache Servers Benchmarking 136

Dynatrace

SEPTEMBER 2, 2020

With a single import this module will instrument all the key libraries your application uses, utilizing the OneAgent SDK underneath and collecting transactional data (PurePaths) from your apps. Create a virtual environment, and setup settings_secret.py (This is specific to this project, instructions in the README.md). Database calls.

Monitoring 244

Monitoring Cache Open Source Database 244

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. The significance of triggers lies in their ability to enforce data integrity and automate various database-related tasks.

Cache 61

Cache Database Games Healthcare 61

Dynatrace

APRIL 21, 2022

But managing these three data types at a scale becomes unsustainable for even the most experienced teams. Getting precise root cause analysis when dealing with several layers of virtualization in a containerized world. Instead, it remains up to human experts to correlate and analyze the data in time-consuming war rooms.

Azure 188

Azure Monitoring Virtualization Metrics 188

IO River

NOVEMBER 2, 2023

Add-on Services - Special services can include capabilities like security features (WAF, Origin Shield), resource capping (rate limiting), image/video optimization, and more.CDN Pricing Examples1) Amazon Cloudfront’s data routing prices are determined according to amount of traffic and region.

Infrastructure 52

Infrastructure Traffic Cache Strategy 52

SQL Performance

APRIL 8, 2019

Back on December 5, 2017, Microsoft announced that they were using AMD EPYC 7551 processors in their storage-optimized Lv2-Series virtual machines. The L3 cache size is 64MB. The L3 cache size is 64MB. The key specifications for the Lsv2 series virtual machines are shown in Table 1. lanes for I/O connectivity.

Azure 42

Azure Virtualization Storage Benchmarking 42

ScaleOut Software

MAY 15, 2014

We have spent a great deal of time at ScaleOut Software re-architecting our in-memory data grid (IMDG)’s code base to make best use of many cores and large memory. During load-balancing, the client gets the following exception when accessing the cache: ErrorCode<ERRCA0017>:SubStatus<ES0006>:There is a temporary failure.

Cache 40

Cache Servers Network Design 40