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

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. Bar-Yam, Journal of Systems Science and Complexity.

Operating System 144

Operating System Cache AWS Scalability 144

ScaleOut Software

JULY 21, 2020

For more than fifteen years, ScaleOut StateServer® has demonstrated technology leadership as an in-memory data grid (IMDG) and distributed cache. Because all the work is performed with the IMDG, this has the two-fold advantage of offloading both the network and the client’s CPU. The Challenges with Parallel Queries.

Analytics 52

Analytics Airlines Cache Scalability 52

ScaleOut Software

JULY 21, 2020

For more than fifteen years, ScaleOut StateServer® has demonstrated technology leadership as an in-memory data grid (IMDG) and distributed cache. Because all the work is performed with the IMDG, this has the two-fold advantage of offloading both the network and the client’s CPU. The Challenges with Parallel Queries.

Analytics 52

Analytics Airlines Cache Scalability 52

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

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

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. SYNOPSIS biolatency.bt

Latency 68

Latency C++ Cache Programming 68

Smashing Magazine

SEPTEMBER 20, 2021

Search Engine And Web Archive Cached Results. Another common category of imposter domains are domains used by search engines for delivering cached results or archived versions of page views. The message that appears above a cached search result in Google’s search service. Large preview ). Large preview ).

Website 89

Website Analytics Google Cache 89

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

The Netflix TechBlog

SEPTEMBER 24, 2021

It is worth pointing out that cloud processing is always subject to variable network conditions. Virtual Assembly Figure 3 describes how a virtual assembly of the encoded chunks replaces the physical assembly used in our previous architecture. For write operations, those challenges do not apply.

Cloud 237

Cloud Media Storage Cache 237

Scalegrid

FEBRUARY 8, 2024

By breaking up large datasets into more manageable pieces, each segment can be assigned to various network nodes for storage and management purposes. These systems safeguard against the risk of data loss due to hardware failure or network issues by spreading data across multiple nodes.

Storage 130

Storage Systems Big Data Azure 130

SQL Performance

DECEMBER 17, 2019

This removes the burden of purchasing and maintaining your hardware, storage and networking infrastructure, while still giving you a very familiar experience with Windows and SQL Server itself. One important choice you will still have to make is what type and size of Azure virtual machine you want to use for your existing SQL Server workload.

Azure 72

Azure Virtualization Servers Storage 72

Smashing Magazine

JUNE 30, 2021

A ServiceWorker is a short-lived , isolated JavaScript scope running in a separate thread, functioning as a proxy for every network request originating from pages of the same origin. As a rule of thumb: If JSON.stringify(messagePayload) is under 10KB, you are at virtually no risk of creating a long frame, even on the slowest of phones.

Games 145

Games Architecture Code C++ 145

Smashing Magazine

AUGUST 30, 2021

If the stylesheet file has a large file size or multiple dependencies which are located on third-party servers or CDNs, website rendering can be delayed significantly depending on the network speed and reliability. Caching Stylesheets. Caching static files is a useful optimization strategy. This is known as cache-busting.

Media 108

Media Performance Cache Strategy 108

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. The db.cr1.8xlarge has 88 ECUs, 244GB of memory, high-bandwidth network, and the ability to deliver up to 20,000 IOPS for MySQL 5.6,

Cache 129

Cache Cloud Performance Retail 129

Smashing Magazine

OCTOBER 31, 2023

Type 2: Full Real-User Monitoring (RUM) If CrUX offers one flavor of real-user data, then we can consider “full real-user data” to be another flavor that provides even more in the way individual experiences, such as specific network requests made by the page. The accuracy of observed data depends on how the test environment is set up.

Speed 97

Speed Google Website Metrics 97

IO River

NOVEMBER 2, 2023

Transition to a Multi-CDN SetupA multi-CDN strategy has multiple advantages, like ensuring network redundancy and enhanced performance. Split and Separate Static and Dynamic TrafficStatic traffic is traffic that is cached close to the user and stored and served to them by the nearest server.

Infrastructure 52

Infrastructure Traffic Cache Strategy 52

IO River

NOVEMBER 2, 2023

This is where a well-architected Content Delivery Network (CDN) shines. The goal is to boost the pitfalls of network disruptions and vendor dependencies, all while pocketing cost savings. Given its unchanging nature, static content is ideal for caching. However, what sets HLS apart is its adaptability. The result?

Architecture 52

Architecture Performance Internet Internet 52

Dynatrace

APRIL 21, 2022

Getting precise root cause analysis when dealing with several layers of virtualization in a containerized world. Using a data-driven approach to size Azure resources, Dynatrace OneAgent captures host metrics out-of-the-box to assess CPU, memory, and network utilization on a VM host. Missing caching layers.

Azure 188

Azure Monitoring Virtualization Metrics 188

IO River

NOVEMBER 2, 2023

A CDN (Content Delivery Network) is a network of geographically distributed servers that brings web content closer to where end users are located, to ensure high availability, optimized performance and low latency. In case of an error, a Virtual Edge solution also enables reverting to the previous configuration easily and quickly.5.

Best Practices 52

Best Practices Strategy Traffic Virtualization 52

IO River

NOVEMBER 2, 2023

This is where a well-architected Content Delivery Network (CDN) shines. Â The goal is to boost the pitfalls of network disruptions and vendor dependencies, all while pocketing cost savings. This way, even if a user desires to watch in 4K but lacks the necessary network resources, HLS steps in to offer a lower-quality version.

Architecture 52

Architecture Performance Internet Internet 52

ScaleOut Software

MAY 15, 2014

Also, load-balancing after membership changes must be both multi-threaded and pipelined to drive the network at maximum bandwidth. Given all this, we thought it would be a good opportunity to see how we are doing relative to the competition, and in particular, relative to Microsoft’s AppFabric caching for Windows on-premise servers.

Cache 40

Cache Servers Network Design 40

IO River

NOVEMBER 2, 2023

Transition to a Multi-CDN SetupA multi-CDN strategy has multiple advantages, like ensuring network redundancy and enhanced performance. Split and Separate Static and Dynamic TrafficStatic traffic is traffic that is cached close to the user and stored and served to them by the nearest server.

Infrastructure 52

Infrastructure Traffic Cache Strategy 52

Percona

APRIL 17, 2023

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. Make sure the drives are mounted with noatime and also if the drives are behind a RAID controller with appropriate battery-backed cache.

Best Practices 52

Best Practices Design Tuning Database 52

IO River

NOVEMBER 2, 2023

A CDN (Content Delivery Network) is a network of geographically distributed servers that brings web content closer to where end users are located, to ensure high availability, optimized performance and low latency. In case of an error, a Virtual Edge solution also enables reverting to the previous configuration easily and quickly.5.

Best Practices 40

Best Practices Strategy Traffic Virtualization 40

The Morning Paper

DECEMBER 8, 2019

The beauty of persistent memory is that we can use memory layouts for persistent data (with some considerations for volatile caches etc. Traditionally one of the major costs when moving data in and out of memory (be it to persistent media or over the network) is serialisation. in front of that memory , as we saw last week).

Hardware 56

Hardware Programming Media Storage 56

IO River

NOVEMBER 2, 2023

It’s not just limited to cloud resources like AWS and Azure; Terraform is versatile, extending its capabilities to key performance areas like Content Delivery Network (CDN) management, ensuring efficient content delivery and optimal user experience.‍Started As businesses grow and demand fluctuates, infrastructure needs to adapt.

Open Source 52

Open Source DevOps AWS Azure 52

Percona

JUNE 22, 2023

High availability works through a combination of the following: No single point of failure (SPOF) : You must eliminate any single point of failure in the database environment, including physical or virtual hardware the database system relies on that would cause it to fail. Networking equipment (switches, routers, etc.)

Availability 111

Availability Database Open Source Hardware 111

Alex Russell

APRIL 29, 2021

Real-time network protocols for enabling videoconferencing, desktop sharing, and game streaming applications. Modern, asynchronous network APIs that dramatically improve performance in some situations. An extension to Service Workers that enables browsers to present users with cached content when offline. Delayed five years.

Media 145

Media Games Education Engineering 145

HammerDB

JULY 5, 2022

We use stored procedures because, as the introductory post shows, using single SQL statements turns our database benchmark into a network test). 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.

Benchmarking 98

Benchmarking Database C++ Virtualization 98

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. Their expertise lies in ensuring everything runs smoothly, from servers to networks. As businesses grow and demand fluctuates, infrastructure needs to adapt.

Open Source 40

Open Source DevOps AWS Azure 40

The Morning Paper

APRIL 14, 2019

Microarchitectural state of interest includes data and instruction caches, TLBs, branch predictors, instruction- and data-prefetcher state machines, and DRAM row buffers. There are also stateless interconnects including buses and on-chip networks. So these on-core caches must be flushed on a domain switch.

Hardware 44

Hardware Cache Latency Speed 44

Smashing Magazine

JULY 8, 2021

Modules like the service module containing all the network requests needed by the company are kept in this core module and all corresponding network requests are made from here. This is the virtual node of Vue.js. There are two ways you can organize your modules: Vue.js core modules, App feature modules. development.

Speed 132

Speed Processing Development Code 132

SQL Performance

APRIL 27, 2020

Fast forward a few years after Azure SQL Database was released to when Azure SQL Managed Instance was in public preview, and "vCores" (virtual cores) were announced for Azure SQL Database. Hyperscale achieves high performance from each compute node having SSD-based caches which helps minimize the network round trips to fetch data.

Azure 55

Azure Database Serverless Hardware 55

The Morning Paper

APRIL 9, 2019

once you’re back home on a trusted network). There are two main routes an attacker can use to persist malicious payloads: an in-network attacker can hijack connections over HTTP, or the attacker can lure the victim to visit a website under the attacker’s control. Storing a malicious payload. ected Client-Side XSS ?aw.

Storage 44

Storage Cache Network Transportation 44

Enprowess

SEPTEMBER 7, 2021

Network: Node.js 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. Caching of individual modules. Faster virtual DOM. applications over time.

Open Source 52

Open Source Virtualization Programming Servers 52

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. Secure – DynamoDB provides fine-grained access control at the table, item, and attribute level, integrated with AWS Identity and Access Management.

Internet 128

Internet Internet AWS Performance 128