Scalegrid

APRIL 16, 2020

This is because they are able to leverage free AWS or Azure startup hosting credits secured through their incubator, accelerator, or startup community program, and can apply their free credits to their database hosting costs as ScaleGrid. Deploying your application and database on the same VPC also provides the lowest possible latency path.

Cloud 242

Cloud Azure AWS Database 242

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. It was a great privilege. That's about 24 hours from now!

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

JULY 2, 2021

biolatency Disk I/O latency histogram heat map. cachestat File system cache statistics line charts. runqlat CPU scheduler latency heat map. I see people think like a programmer instead and feel they must start by learning bcc and BPF programming in depth. execsnoop New processes (via exec(2)) table. BPF up and running!

Latency 145

Latency Cache Energy Systems 145

Scalegrid

MARCH 28, 2024

Key Takeaways Redis offers complex data structures and additional features for versatile data handling, while Memcached excels in simplicity with a fast, multi-threaded architecture for basic caching needs. Redis is better suited for complex data models, and Memcached is better suited for high-throughput, string-based caching scenarios.

Cache 130

Cache Storage Scalability Architecture 130

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. In-Memory Data Grids for Fast-Changing Data. Designed to help scalable applications deliver high performance, it stores live, fast-changing data in memory (DRAM) for fast updates and retrieval.

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. In-Memory Data Grids for Fast-Changing Data. Designed to help scalable applications deliver high performance, it stores live, fast-changing data in memory (DRAM) for fast updates and retrieval.

Analytics 52

Analytics Airlines Cache Scalability 52

Brendan Gregg

JULY 2, 2021

biolatency Disk I/O latency histogram heat map 5. cachestat File system cache statistics line charts 7. runqlat CPU scheduler latency heat map 10. I see people think like a programmer instead and feel they must start by learning bcc and BPF programming in depth. execsnoop New processes (via exec(2)) table 2.

Open Source 40

Open Source Latency Cache Energy 40

The Morning Paper

FEBRUARY 6, 2020

Last week we looked at a function shipping solution to the problem; Cloudburst uses the more common data shipping to bring data to caches next to function runtimes (though you could also make a case that the scheduling algorithm placing function execution in locations where the data is cached a flavour of function-shipping too).

Lambda 98

Lambda Serverless Cache Latency 98

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” If you’re interested in attending, please check out the links, and I look forward to meeting and re-meeting many of you there.

Latency 51

Latency C++ Hardware Performance 51

High Scalability

JULY 20, 2018

Yet we still program with text—in files. That means multiple data indirections mean multiple cache misses. He told me his work in functional programming languages failed, and would likely always fail, because it was easy to do hard things but incredibly difficult to do simple things. Do you like this sort of Stuff?

Internet 121

Internet Internet Scalability Automotive 121

The Netflix TechBlog

JULY 12, 2019

The Tech Hollow , an OSS technology we released a few years ago, has been best described as a total high-density near cache : Total : The entire dataset is cached on each node?—?there there is no eviction policy, and there are no cache misses. Near : the cache exists in RAM on any instance which requires access to the dataset.

Cache 183

Cache Architecture Latency Engineering 183

All Things Distributed

JULY 14, 2015

Streams provide you with the underlying infrastructure to create new applications, such as continuously updated free-text search indexes, caches, or other creative extensions requiring up-to-date table changes. For example, you can program home sensors to write the state of temperature, water, gas, and electricity directly to DynamoDB.

Database 167

Database Lambda AWS IoT 167

The Morning Paper

JUNE 23, 2019

Generally to cache data (including non-persistent data that never sees a backing store), to share non-persistent data across application services (e.g. ” Even re-reading that today, the letter of the law there is surprisingly strict to me: you can use the local memory space or filesystem as a brief single transaction cache, but no more.

Cache 79

Cache Latency Google Lambda 79

Dynatrace

NOVEMBER 3, 2021

Monitoring , by textbook definition, is the process of collecting, analyzing, and using information to track a program’s progress toward reaching its objectives and to guide management decisions. Examples include a spike in memory utilization, a decrease in cache hit ratio, or an increase in CPU utilization.

Monitoring 226

Monitoring Metrics DevOps Scalability 226

Adrian Cockcroft

JANUARY 20, 2023

I have always been particularly interested in the interconnects and protocols used to create clusters, and the latency and bandwidth of the various offerings that are available. Many HPC workloads synchronize work on a barrier, and work much better if there’s a consistently narrow latency distribution without a long tail.

Architecture 52

Architecture Latency Benchmarking AWS 52

Dynatrace

OCTOBER 4, 2022

These include application programming interfaces, streaming, and more. Data lakehouses deliver the query response with minimal latency. By applying massively parallel processing and high-performance caches, all this contextualized data can be interrogated at high speeds for ad-hoc analytics or AI-powered precise answers.

Artificial Intelligence 214

Artificial Intelligence Storage Analytics Government 214

Smashing Magazine

AUGUST 20, 2021

Nanoc removed the UI and is instead a program you run on the command line. Platforms such as Snipcart , CommerceLayer , headless Shopify , and Stripe enable you to manage products in a friendly UI while taking advantage of the benefits of Jamstack: Amazon’s famous study reported that for every 100ms in latency, they lose 1% of sales.

Ecommerce 139

Ecommerce Website Government Internet 139

The Morning Paper

DECEMBER 8, 2019

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. The starting point is a set of three asumptions for an NVM-based programming model: Compared to traditional persistent media, NVM is fast.

Hardware 56

Hardware Programming Media Storage 56

Brendan Gregg

JANUARY 17, 2018

Short durations can be useful for understanding how well a WSS will fit into the CPU caches (L1/L2/L3, TLB L1/L2, etc). In this case, 28 Mbytes is a little larger than the LLC for this CPU, so may not cache so well (in a single LLC, anyway, and based on this single measurement). Why did I use a 100 ms interval? 16.570 403.66

Cache 71

Cache Latency C++ Programming 71

The Morning Paper

NOVEMBER 17, 2019

For example, to reduce latency, serverless platforms try to reuse the same function instance to process multiple requests. Serverless functions are stateless , but can opportunistically reuse cached state across invocations to speed up start times. Don’t do that! A naive semantics, and when it is safe to use.

Serverless 58

Serverless Lambda Programming Cache 58

The Morning Paper

MAY 12, 2019

The paper examines the implications of microservices at the hardware, OS and networking stack, cluster management, and application framework levels, as well as the impact of tail latency. Smaller microservices demonstrated much better instruction-cache locality than their monolithic counterparts. Hardware implications.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Alex Russell

APRIL 29, 2021

Provides support for "unread counts", e.g. for email and chat programs. For heavily latency-sensitive use-cases like WebXR, this is a critical component in delivering a good experience. An extension to Service Workers that enables browsers to present users with cached content when offline. PWA App Icon Badging.

Media 145

Media Games Education Engineering 145

The Morning Paper

DECEMBER 10, 2019

The OS contains a library operating system component that lives in userspace and assists programs with peristent data access, and a kernel responsible for mediating between hardware and software. At 0.4ns, we’re in the same ballpark as regular L1 cache reference latency. The last word.

Hardware 52

Hardware Virtualization Operating System Programming 52

John McCalpin

AUGUST 1, 2018

MPI is a commonly used standard to implement message-passing programs on computer clusters. The basic interfaces are simple to learn, and I suspect that many people have no idea how many levels of interacting components are involved in executing an MPI program on a cluster. The networking hardware.

Hardware 40

Hardware Transportation Performance Latency 40

Brendan Gregg

JANUARY 16, 2018

Short durations can be useful for understanding how well a WSS will fit into the CPU caches (L1/L2/L3, TLB L1/L2, etc). In this case, 28 Mbytes is a little larger than the LLC for this CPU, so may not cache so well (in a single LLC, anyway, and based on this single measurement). Why did I use a 100 ms interval? 16.570 403.66

Cache 40

Cache Latency C++ Programming 40

SQL Server According to Bob

JANUARY 11, 2020

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. This cache is often supported by a battery-powered backup facility.

Servers 40

Servers Cache Media Hardware 40

SQL Performance

APRIL 8, 2019

The L3 cache size is 64MB. The L3 cache size is 64MB. They feature low latency, local NVMe storage that can directly leverage the 128 PCIe 3.0 Having multiple low latency local NVMe SSDs connected to those PCIe lanes will give you excellent storage performance. lanes for I/O connectivity. Azure Lsv2 Details. Memory (GiB).

Azure 42

Azure Virtualization Storage Benchmarking 42

Enprowess

SEPTEMBER 7, 2021

JavaScript is one of the most famous and loved programming languages nowadays. It is growing day by day and has kept its position for eight years in a row and belongs to the top ten most loved programming languages. with its low latency I/O operations, gives the benefit of ‘No buffering’ to developers. Network: Node.js

Open Source 52

Open Source Virtualization Programming Servers 52

John McCalpin

NOVEMBER 5, 2016

In the latest (October 2016) revision of Intel’s Instruction Extensions Programming Reference , Intel has disclosed a fairly dramatic departure from these “traditional” approaches. With 2 FMA units that have 5-cycle latency, the code must implement at least 2*5=10 independent accumulators in order to avoid stalls.

Cache 40

Cache C++ Latency Hardware 40

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

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. Be careful what you ask for (materialize). Recursive learning in SQL.

Network 44

Network Database Programming Hardware 44

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. On the Internet, IP addresses are used to route packets between two unique machines.

Transportation 145

Transportation Internet Internet Network 145

KeyCDN

FEBRUARY 14, 2019

FILEminimizer Pictures FILEminimizer Pictures is a Windows program that gives you four different compression options so that you can find the perfect balance of image quality and size savings. A CDN will pull the GIF files from your origin server and cache them. It also removes unnecessary color profiles and excess metadata.

Speed 50

Speed Website Latency Cache 50