Tag: performance

Feed: AWS Architecture Blog. Amazon Web Services (AWS) Cloud is elastic, convenient to use, easy to consume, and makes it simple to onboard workloads. Because of this simplicity, the cost associated with onboarding workloads is sometimes overlooked. There is a notion that when an organization moves its workload to the cloud, agility, scalability, performance, and cost issues will disappear. While this may be true for agility and scalability, you must optimize your workload. You can do this with services like Amazon EC2 Auto Scaling via Amazon Elastic Compute Cloud (Amazon EC2) and Amazon EC2 Spot Instances to realize the performance ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Gürol Canbek. Accuracy, F1, or TPR (a.k.a recall or sensitivity) are well-known and widely used metrics for evaluating and comparing the performance of machine learning based classification. But, are we sure we evaluate classifiers' performance correctly? Are they or others such as BACC (Balanced Accuracy), CK (Cohen's Kappa), and MCC (Matthews Correlation Coefficient) robust? My latest research on benchmarking classification performance metrics (BenchMetrics) has just been published with SpringerNature in Neural Computing and Applications (SCI, Q1) journal. Read here: https://rdcu.be/cvT7d Highlights A benchmarking method is proposed for binary-classification performance metrics. Meta-metrics ... Read More

Feed: AWS Compute Blog. Author: Julian Wood. This series of blog posts uses the AWS Well-Architected Tool with the Serverless Lens to help customers build and operate applications using best practices. In each post, I address the serverless-specific questions identified by the Serverless Lens along with the recommended best practices. See the introduction post for a table of contents and explanation of the example application. This post continues part 2 of this security question. Previously, I look at designing your function to take advantage of concurrency via asynchronous and stream-based invocations. I cover measuring, evaluating, and selecting optimal capacity units. Best practice: Integrate with managed services ... Read More

Feed: AWS Compute Blog. Author: James Beswick. This post is written by Mark Sailes, Specialist Solutions Architect, Serverless and Richard Davison, Senior Partner Solutions Architect. The Operating Lambda: Performance optimization blog series covers important topics for developers, architects, and system administrators who are managing applications using AWS Lambda functions. This post explains how you can reduce the initialization time to start a new execution environment when using the Java-managed runtimes. Many Lambda workloads are designed to deliver fast responses to synchronous or asynchronous workloads in a fraction of a second. Examples of these could be public APIs to deliver dynamic ... Read More

Feed: AWS Compute Blog. Author: Julian Wood. This series of blog posts uses the AWS Well-Architected Tool with the Serverless Lens to help customers build and operate applications using best practices. In each post, I address the serverless-specific questions identified by the Serverless Lens along with the recommended best practices. See the introduction post for a table of contents and explanation of the example application. This post continues part 1 of this security question. Previously, I cover measuring and optimizing function startup time. I explain cold and warm starts and how to reuse the Lambda execution environment to improve performance. I show a number of ways ... Read More

Feed: Recent Announcements. Starting today, Amazon Redshift introduces spatial query performance enhancements, 3D/4D geometries, and new spatial functions in Amazon Redshift to improve processing of spatial data. With the today's performance enhancements you can significantly enhance geometry query throughput by up to 100x in some cases transparently and automatically. The performance enhancements also optimize and accelerate spatial queries with large table JOINs. Support for 3D/4D geometries in spatial queries greatly expands the range of spatial use cases where 3D/4D spatial coordinates is required to accurately represent the multi-dimensional data. In addition to the above new spatial features, there are more ... Read More

Feed: AWS Compute Blog. Author: Julian Wood. This series of blog posts uses the AWS Well-Architected Tool with the Serverless Lens to help customers build and operate applications using best practices. In each post, I address the serverless-specific questions identified by the Serverless Lens along with the recommended best practices. See the introduction post for a table of contents and explanation of the example application. Evaluate and optimize your serverless application’s performance based on access patterns, scaling mechanisms, and native integrations. This allows you to continuously gain more value per transaction. You can improve your overall experience and make more efficient use of the platform in ... Read More

Feed: R-bloggers. Author: R, Econometrics, High Performance. The fastverse is a suite of complementary high-performance packages for statistical computing and data manipulation in R. Developed independently by various people, fastverse packages jointly contribute to the objectives of:The fastverse package integrates, and provides utilities for easy installation, loading and management of such packages. It is an extensible framework that allows users to freely (and permanently) add or remove packages to create a ‘verse’ of packages suiting their general needs. Separate ‘verses’ can be created for different projects.The package thus extends the functionality provided by the tidyverse package, whereas fastverse packages themselves ... Read More

Feed: AWS Partner Network (APN) Blog. Author: Art Danielov. By Art Danielov, CEO and CTO – FlashGrid Oracle Database is at the heart of many mission-critical enterprise applications. Moving such applications to Amazon Web Services (AWS) offers multiple benefits, including agility, elasticity, and reliability. Teams responsible for moving Oracle Databases often have a legitimate concern, however—will they be able to achieve the same level of database performance they’re getting in their current on-premises environments? A poorly performing backend database makes the applications slow, no matter how much power or horizontal scaling the servers provide. Also, given the central role backed ... Read More

Feed: Recent Announcements. AWS Snowball Edge (SBE) Storage Optimized devices now support high performance Network File System (NFS) data transfer operations. With this launch, customers can now transfer up to 80TBs of data onto Snowball Edge Storage Optimized devices through both file and object interfaces. The file interface exposes a Network File System (NFS) mount point for each bucket on your AWS Snowball Edge Storage Optimized device. After mounting the file share, you can drag and drop files from your computer into Amazon S3 buckets on the Snowball Edge device. Prior to this launch, file interface data transfer speeds were ... Read More