Dynatrace

JANUARY 31, 2024

The RAG process begins by summarizing and converting user prompts into queries that are sent to a search platform that uses semantic similarities to find relevant data in vector databases, semantic caches, or other online data sources. To observe model drift and accuracy, companies can use holdout evaluation sets for comparison to model data.

Cache 205

Cache Azure Infrastructure Monitoring 205

Highly Scalable

SEPTEMBER 18, 2012

These developments gradually highlight a system of relevant database building blocks with proven practical efficiency. In this article I’m trying to provide more or less systematic description of techniques related to distributed operations in NoSQL databases. Read/Write latency. Data Placement. System Coordination.

Database 213

Database Latency C++ Scalability 213

HammerDB

OCTOBER 23, 2023

HammerDB uses stored procedures to achieve maximum throughput when benchmarking your database. However, there can be a lack of understanding of the benefits that stored procedures bring or if you have a benchmarking tool or database that doesn’t support stored procedures, then you have nothing to compare against.

Benchmarking 62

Benchmarking Database Network C++ 62

Scalegrid

OCTOBER 17, 2019

In that environment, the first PostgreSQL developers decided forking a process for each connection to the database is the safest choice. It would be a shame if your database crashed, after all. Developers are often strongly discouraged from holding a database connection while other operations take place.

Architecture 200

Architecture Database Latency Servers 200

Enprowess

SEPTEMBER 7, 2021

Quick summary : Node vs React Comparison is not correct because both technologies are entirely different things. Node JS vs. React JS Comparison. with its low latency I/O operations, gives the benefit of ‘No buffering’ to developers. Now, let us make a comparison between React and Node.js. Node JS vs. React JS Comparison.

Open Source 52

Open Source Virtualization Programming Servers 52

Percona

DECEMBER 11, 2023

Here, we will discuss a notable new feature in Amazon RDS, the Dedicated Log Volume (DLV), that has been introduced to boost database performance. A Dedicated Log Volume (DLV) is a specialized storage volume designed to house database transaction logs separately from the volume containing the database tables.

AWS 95

AWS Benchmarking Performance Traffic 95

Percona

MAY 2, 2023

That’s why it’s essential to implement the best practices and strategies for MongoDB database backups. Why are MongoDB database backups important? Regular database backups are essential to protect against data loss caused by system failures, human errors, natural disasters, or cyber-attacks.

Best Practices 52

Best Practices Database Storage Servers 52

Scalegrid

JULY 29, 2020

In our final post, we will put them head-to-head in a detailed feature comparison and compare the results of PgBouncer vs. Pgpool-II performance for your PostgreSQL hosting ! PgBouncer defines one pool per user+database combination. PgBouncer allows limiting connections per-pool, per-database, per-user or per-client.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Percona

MARCH 29, 2023

Compression in any database is necessary as it has many advantages, like storage reduction, data transmission time, etc. At the time of insert ops, no other queries or DML ops were running in the database. Storage reduction alone results in significant cost savings, and we can save more data in the same space.

Storage 106

Storage Network Open Source Latency 106

Dynatrace

JANUARY 31, 2024

This freshness measurement can then be used by out-of-the-box Dynatrace anomaly detection to actively alert on abnormal changes within the data ingest latency to ensure the expected freshness of all the data records. An erroneous change in the database system leads to a subset of the data being categorized incorrectly.

DevOps 195

DevOps Analytics Airlines Metrics 195

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. That’s a heritage of the LAMP model when the same server would host both the database and the web server.

Tuning 133

Tuning Cache Servers Benchmarking 133

Particular Software

SEPTEMBER 20, 2021

Some will claim that any type of RPC communication ends up being faster (meaning it has lower latency) than any equivalent invocation using asynchronous messaging. It’s less of an apples-to-oranges comparison and more like apples-to-orange-sherbet. There are more steps, so the increased latency is easily explained.

Benchmarking 97

Benchmarking Latency Servers Systems 97

Dynatrace

SEPTEMBER 25, 2019

Dynatrace Extension: database performance as experienced by the SAP ABAP server. Citrix platform performance—optimize your Citrix landscape with insights into user load and screen latency per server. Comparison of these metrics between VDAs characterizes load balancing efficiency. Dynatrace Extension: Citrix user experience.

Latency 118

Latency Performance Virtualization Infrastructure 118

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. top(1) showed that only the Cassandra database was consuming CPU. As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. These can be invisible to top(8).

Speed 126

Speed Java AWS Virtualization 126

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. top(1) showed that only the Cassandra database was consuming CPU. As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. us on Ubuntu.

Speed 52

Speed Java AWS Virtualization 52

Dynatrace

JANUARY 15, 2020

Dynatrace Extension: database performance as experienced by the SAP ABAP server. Citrix platform performance—optimize your Citrix landscape with insights into user load and screen latency per server. Comparison of these metrics between VDAs characterizes load balancing efficiency. Dynatrace Extension: Citrix user experience.

Latency 36

Latency Performance Virtualization Infrastructure 36

The Morning Paper

AUGUST 29, 2019

With regard to external storage, you could use S3 with remote storage accessible over a REST API, or block-based storage with EBS and Instance Store (InS), with EBS being the closest match for traditional database systems. InS does now offer an NVMe variant too, and the authors perform limited testing on that as well. Key findings.

Architecture 76

Architecture Cloud Storage Serverless 76

The Netflix TechBlog

JUNE 13, 2023

By collecting and analyzing key performance metrics of the service over time, we can assess the impact of the new changes and determine if they meet the availability, latency, and performance requirements. Our system doesn’t require strict consistency guarantees and does not use database transactions.

Traffic 279

Traffic Metrics Systems Strategy 279

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. top(1) showed that only the Cassandra database was consuming CPU. As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. These can be invisible to top(8).

Speed 40

Speed Java AWS Virtualization 40

HammerDB

OCTOBER 12, 2018

Similarly for this guide MySQL can be swapped for a mySQL based databases such as MariaDB. As is also the case this limitation is at the database level (especially the storage engine) rather than the hardware level. As is exactly the same with PostgreSQL for system choice a 2 socket system is optimal for MySQL OLTP performance.

Best Practices 40

Best Practices Scalability Performance C++ 40

SQL Server According to Bob

JANUARY 11, 2020

KB sectors run on smaller sectors   14 System and sample databases   15 Determining the formatted sector size of database   15 What sector sizes does SQL Server support? SQL Server 2005 introduces the snapshot database feature for point-in-time databases ​​ and online DBCC operations.

Servers 40

Servers Cache Database Media 40

Highly Scalable

MAY 1, 2012

This approach often leads to heavyweight high-latency analytical processes and poor applicability to realtime use cases. This process is shown in the figure below: It is clear that if sketch is large in comparison with the cardinality of the data set, almost each value will get an independent counter and estimation will precise.

Analytics 191

Analytics Traffic Big Data Efficiency 191

The Netflix TechBlog

NOVEMBER 2, 2021

Perceptual quality measurements are used to drive video encoding optimizations , perform video codec comparisons , carry out A/B testing and optimize streaming QoE decisions to mention a few. This enables us to use our scale to increase throughput and reduce latencies. VQS is called using the measureQuality endpoint.

Media 171

Media Innovation Metrics Latency 171

Alex Russell

APRIL 29, 2021

For heavily latency-sensitive use-cases like WebXR, this is a critical component in delivering a good experience. Thankfully, the advent of M1 Macs makes it possible to remove hardware differences from comparisons. Offscreen Canvas. Improves the smoothness of 3D and media applications by moving rendering work to a separate thread.

Media 145

Media Games Education Engineering 145

Smashing Magazine

JANUARY 7, 2019

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik), Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing).

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

JANUARY 6, 2020

Alternatively, you can also use Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). Paddy Ganti’s script constructs two URLs (one normal and one blocking the ads), prompts the generation of a video comparison via WebPageTest and reports a delta.

Performance 145

Performance Cache Network Metrics 145