Brendan Gregg

DECEMBER 30, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. A video of the talk is on youtube : The slides are on slideshare : I love this talk as I get to share more about what the Performance and Operating Systems team at Netflix does, rather than just my work.

Tuning 52

Tuning AWS Best Practices Network 52

Alex Russell

APRIL 29, 2021

This post mines publicly available data on the pace of compatibility fixes and feature additions to assess the claim. After 20 years of neck-in-neck competition, often starting from common code lineages, there just isn't that much left to wring out of the system. Count of APIs available from JavaScript by Web Confluence.

Media 145

Media Games Education Engineering 145

Brendan Gregg

NOVEMBER 28, 2017

At Netflix, we've been using these technologies as they've been made available for instance types in the AWS EC2 cloud. In this configuration, the AMI and boot is paravirt (PV), the kernel is making hypercalls instead of privileged instructions, and the system is using paravirt network and storage drivers.

Virtualization 40

Virtualization AWS Hardware Storage 40

SQL Performance

MARCH 17, 2020

Back in 2014, I wrote an article called Performance Tuning the Whole Query Plan. It has 32GB RAM, with 24GB available to the SQL Server 2019 instance. The optimizer chooses this plan without any hints on my system configuration because the estimated cost of the plan is below the cost threshold for parallelism. Final Thoughts.

Servers 86

Servers Tuning Database Efficiency 86

Percona

JANUARY 14, 2019

With the latest ClickHouse version, all of these features are available, but some of them may not perform fast enough. In a partitioned massively parallel database system, the storage format and sorting algorithm may not be optimized for that operation as we are reading multiple partitions in parallel. Deleting messages.

Database 40

Database Analytics Blockchain Healthcare 40

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. Modern network performance and availability. mid-priced Androids were slightly faster than 2014's iPhone 6. The Moto G4 , for example. Here begins our 2021 adventure. Hard Reset.

Performance 124

Performance Network Cache Metrics 124

SQL Performance

APRIL 23, 2019

SQL Server 2014 added the ability to perform parallel batch-mode grouped aggregation within a single Hash Match Aggregate operator. Columnstore storage. To understand this, it is necessary to first review how columnstore storage works at a high level: A compressed row group contains a column segment for each column.

Servers 67

Servers Testing Metrics Storage 67

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04

Virtualization 76

Virtualization AWS Engineering Hardware 76

Abhishek Tiwari

NOVEMBER 3, 2018

Recently I was asked about content management systems (CMS) of the future - more specifically how they are evolving in the era of microservices, APIs, and serverless computing. They often get blindsided by vendor’s pitch and end-up making decision based on some fancy demos (see my post from 2014 on Adobe AEM ).

Systems 63

Systems Cache Website Network 63

Sutter's Mill

MARCH 11, 2024

We must make our software infrastructure more secure against the rise in cyberattacks (such as on power grids, hospitals, and banks), and safer against accidental failures with the increased use of software in life-critical systems (such as autonomous vehicles and autonomous weapons). The C++ community has not done so. best effort” analysis).

C++ 139

C++ Programming Code Java 139

SQL Server According to Bob

DECEMBER 31, 2018

Using SQL Server Management Studio (SSMS) and storing the events in a table requires reading the events, streaming to table storage followed by an order by event sequence query. Large traces can encounter the 32-bit SSMS memory limitations. CREATE EVENT SESSION [EventSequence] ON SERVER ADD EVENT sqlserver. event_sequence , sqlserver.

Efficiency 40

Efficiency Code Servers Cache 40

All Things Distributed

DECEMBER 12, 2018

Today, I'm happy to announce that the AWS Europe (Stockholm) Region, our 20th Region globally, is now generally available for use by customers. With this launch, AWS now provides 60 Availability Zones, with another 12 zones and four Regions expected to come online by 2020 in Bahrain, Cape Town, Hong Kong, and Milan.

AWS 124

AWS Cloud Games Serverless 124

O'Reilly

JULY 25, 2023

To provide some coherence to the music, I decided to use Taylor Swift songs since her discography covers the time span of most papers that I typically read: Her main albums were released in 2006, 2008, 2010, 2012, 2014, 2017, 2019, 2020, and 2022. This choice also inspired me to call my project Swift Papers. But still, I liked how Moment.js

Programming 98

Programming Code Design Benchmarking 98