Percona

NOVEMBER 3, 2023

PostgreSQL Cluster One coordinator node citus-coord-01 Three worker nodes citus1 citus2 citus3 Hardware AWS Instance Ubuntu Server 20.04, SSD volume type 64-bit (x86) c5.xlarge And now, execute the benchmark: -- execute the following on the coordinator node pgbench -c 20 -j 3 -T 60 -P 3 pgbench The results are not pretty.

Database 107

Database Benchmarking Latency C++ 107

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. The change was obvious in the production graphs, showing a drop in write latencies: Once tested more broadly, it showed the write latencies dropped by 43%, delivering slightly better performance than on CentOS.

Speed 126

Speed Java AWS Virtualization 126

Adrian Cockcroft

AUGUST 1, 2022

photo by Adrian I gave a talk at Monitorama in Portland Oregon in June, which set out the idea that carbon is just another metric to monitor, and that in a few years most of the monitoring and performance tuning tools are going to be reporting and optimizing for carbon alongside latency, throughput, availability and cost.

AWS 52

AWS Virtualization DevOps Latency 52

The Netflix TechBlog

OCTOBER 19, 2020

In our previous blog post we introduced Edgar, our troubleshooting tool for streaming sessions. If we had an ID for each streaming session then distributed tracing could easily reconstruct session failure by providing service topology, retry and error tags, and latency measurements for all service calls.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Dotcom-Montior

NOVEMBER 11, 2020

those resources now belong to cloud providers, such as AWS Lambda, Google Cloud Platform, Microsoft Azure, and others. Developers don’t have to put in additional time to fine-tuning the system, or rely on other teams for support, as it’s done automatically with the cloud provider. Focus on Application Development.

Serverless 57

Serverless Monitoring Lambda Latency 57

All Things Distributed

APRIL 9, 2015

The Amazon ML console and API provide data and model visualization tools, as well as wizards to guide you through the process of creating machine learning models, measuring their quality and fine-tuning the predictions to match your application requirements. Details on the AWS Blog. Details on the AWS Blog.

Lambda 122

Lambda Cloud IoT AWS 122

Percona

APRIL 17, 2023

In this blog post, we will discuss the best practices on the MongoDB ecosystem applied at the Operating System (OS) and MongoDB levels. The main objective of this post is to share my experience over the past years tuning MongoDB and centralize the diverse sources that I crossed in this journey in a unique place.

Best Practices 52

Best Practices Design Tuning Database 52

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. The change was obvious in the production graphs, showing a drop in write latencies: Once tested more broadly, it showed the write latencies dropped by 43%, delivering slightly better performance than on CentOS.

Speed 40

Speed Java AWS Virtualization 40

The Netflix TechBlog

JUNE 14, 2023

This blog post will share broadly-applicable techniques (beyond GraphQL) we used to perform this migration. To determine customer impact, we could compare various metrics such as error rates, latencies, and time to render. Watch our Chaos Engineering talk from AWS Reinvent to learn more about Sticky Canaries.

Traffic 353

Traffic Latency Cache Metrics 353

Brendan Gregg

SEPTEMBER 5, 2017

Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency. Search for recent blog posts on Linux containers, and try them out, and you'll piece together their capabilities and workings bit by bit. Hit Ctrl-C to end. ^C

Virtualization 76

Virtualization AWS Engineering Hardware 76

All Things Distributed

DECEMBER 12, 2013

Moreover, a GSI''s performance is designed to meet DynamoDB''s single digit millisecond latency - you can add items to a Users table for a gaming app with tens of millions of users with UserId as the primary key, but retrieve them based on their home city, with no reduction in query performance.

Games 130

Games Scalability Database Retail 130

The Netflix TechBlog

AUGUST 22, 2019

In this blog post, we describe how we improved the methodology, which technologies we leveraged, and how this has improved service deployment and consistency. Packer requires specific information for your baking environment and extensive AWS IAM permissions. This means changes can be tracked and reviewed like any other code change.

DevOps 207

DevOps AWS Tuning Infrastructure 207

The Netflix TechBlog

DECEMBER 21, 2020

By Anupom Syam Background At Netflix, our current data warehouse contains hundreds of Petabytes of data stored in AWS S3 , and each day we ingest and create additional Petabytes. These principles reduce resource usage by being more efficient and effective while lowering the end-to-end latency in data processing.

Storage 203

Storage Latency Efficiency Data Engineering 203

The Netflix TechBlog

SEPTEMBER 24, 2021

Our previous tech blog Packaging award-winning shows with award-winning technology detailed our packaging technology deployed on the streaming side. Uploading and downloading data always come with a penalty, namely latency. The requirements and challenges for supporting write operations are different from those for read operations.

Cloud 237

Cloud Media Storage Cache 237

The Netflix TechBlog

AUGUST 13, 2020

You’re half awake and wondering, “Is there really a problem or is this just an alert that needs tuning? Telltale learns what constitutes typical health for an application, no alert tuning required. It usually has dependencies, talks to other services, and lives in different AWS regions. By Andrei U.,

Monitoring 210

Monitoring Tuning Traffic Metrics 210

The Netflix TechBlog

FEBRUARY 18, 2022

In this blog post, we will give an overview of the Rapid Event Notification System at Netflix and share some of the learnings we gained along the way. This separation allows us to tune system configuration and scaling policies independently for different event priorities and traffic patterns.

Systems 334

Systems Traffic Architecture Mobile 334

The Netflix TechBlog

DECEMBER 17, 2019

Requirements In a previous blog post, we discussed Delta , a data enrichment and synchronization platform. In our Delta blog post , we also described use cases beyond data synchronization, such as event processing. There are services at Netflix that use RDBMS kind of databases such as MySQL or PostgreSQL via AWS RDS.

Database 197

Database Traffic Transportation Open Source 197

The Netflix TechBlog

DECEMBER 17, 2019

Requirements In a previous blog post, we discussed Delta , a data enrichment and synchronization platform. In our Delta blog post , we also described use cases beyond data synchronization, such as event processing. There are services at Netflix that use RDBMS kind of databases such as MySQL or PostgreSQL via AWS RDS.

Database 212

Database Traffic Transportation Open Source 212