DDR5 Memory Archives

Tech Optimizer

May 21, 2025

Achieve up to 1.7 times higher write throughput and 1.38 times better price performance with Amazon Aurora PostgreSQL on AWS Graviton4-based R8g instances

Upgrading to Graviton4-based R8g instances with Aurora PostgreSQL-Compatible 17.4 in an Aurora I/O-Optimized cluster configuration results in significant performance improvements. The new instances provide up to 1.7 times higher write throughput, 1.38 times better price-performance, and reduce commit latency by up to 46% on r8g.16xlarge instances and 38% on r8g.2xlarge instances compared to Graviton2-based R6g instances. The Amazon Aurora PostgreSQL-Compatible Edition now supports AWS Graviton4-based R8g instances and PostgreSQL 17.4, which introduces performance enhancements for I/O-Optimized configurations, optimizing write operations and batch processing. R8g instances offer up to 192 vCPUs and 1.5 TB of memory, supporting larger configurations and providing up to 50 Gbps of network bandwidth. PostgreSQL 17 includes vacuum improvements, eliminates the need to drop logical replication slots during upgrades, and expands SQL/JSON standards. Aurora PostgreSQL-Compatible separates compute from storage, enabling independent scaling and maintaining six-way replication for durability, while processing changes as log records to reduce I/O operations. Performance benchmarks using HammerDB show improvements in throughput and commit latency across various workloads. For small workloads on 2xlarge instance size, throughput increased by 50.25% and commit latency improved by 33.87%. For medium workloads on 16xlarge instance size, throughput increased by 30% and commit latency improved by 17.44%. The most significant performance benefits arise from combining hardware upgrades from Graviton2 to Graviton4 with database engine upgrades from PostgreSQL 15.10 to 17.4. For small workloads, throughput increased by 70% and commit latency improved by 38.71%. For medium workloads, throughput increased by 70% and commit latency improved by 46.67%. Cost efficiency is also enhanced, with a 38% improvement in price performance and a 61.26% improvement in price-performance ratio when comparing Graviton2 and Graviton4 instances. Reserved Instances for Graviton4-based R8g instances offer additional cost-optimization opportunities.

Tech Optimizer

February 27, 2025

Upgrade strategies for Amazon Aurora PostgreSQL and Amazon RDS for PostgreSQL 12

Standard support for Amazon Aurora PostgreSQL-Compatible Edition and Amazon RDS for PostgreSQL version 12 will end on February 28, 2025. The final update for PostgreSQL 12, version 12.22, was released on November 21, 2024. PostgreSQL follows an annual major version release cycle, supporting each version for five years post-release. Upgrading to newer major versions requires careful planning and testing to ensure application compatibility. New features in higher PostgreSQL versions include performance improvements, enhanced security, and new functionalities. Aurora PostgreSQL now supports AWS Graviton4 instances, which provide up to 40% performance improvement over Graviton3 instances. Recommended upgrades include moving to PostgreSQL 16 or newer, with options for in-place upgrades, blue/green deployments, and out-of-place upgrades. Amazon RDS Extended Support allows continued operation on a major version beyond the standard support end date, available at an additional cost. Extended Support for Aurora PostgreSQL 12.x and Amazon RDS for PostgreSQL 12.x will incur charges starting March 1, 2025, and will cease upon upgrading.

AppWizard

February 19, 2025

PebbleHost review

PebbleHost, established in 2017, specializes in Minecraft server hosting and offers three plans: budget, premium, and extreme. The budget servers are designed for cost-conscious users. The company also provides VPS and dedicated server hosting, as well as Discord bot hosting services. The server hardware includes Intel i9-9900k and Ryzen 5700X CPUs for budget and premium plans, while the premium plan uses the Ryzen 7900 CPU and DDR5 memory. The extreme plan features dedicated CPU threads. The budget server starts at a low quarterly price for 1GB of RAM, while the premium server with 5GB of RAM is priced monthly. The extreme server starts at a higher price for 6GB of RAM and 3 threads. PebbleHost offers a 72-hour refund policy and various payment methods, including cryptocurrencies. The signup process is straightforward, providing immediate access to passwords and the control panel. The user-friendly control panel allows easy management of server settings, including switching between server versions. PebbleHost has server locations in North America, Europe, and the UK, with premium users also accessing servers in Australia and Singapore. Performance varies by plan, with the budget option potentially insufficient for active users. The premium plan is recommended for better gameplay. Support is available through a ticketing system and an active Discord server, with a positive response time for tickets. An advanced support package is offered for additional assistance. PebbleHost maintains a knowledge base and a server status page showing a 7-day average uptime of 99.992%.

BetaBeacon

May 7, 2024

CORSAIR ONE i500 compact Windows 11 gaming PC will give you wood

The CORSAIR ONE i500 is a compact PC with a footprint 30 percent smaller than traditional full-sized desktops. It features the NVIDIA GeForce RTX 4090 graphics card and the Intel Core i9-14900K processor, making it a powerful option for content creators, professionals, and gamers. The PC also includes advanced liquid cooling technologies for temperature management and has a sleek chassis designed for both aesthetics and efficiency.