Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. This was a weird problem to think about: Time itself had now become a resource and target of performance analysis. Colleagues/Internet I love using Linux performance tools. Microbenchmark os::javaTimeMillis() on both systems.

Speed 52

Speed Java AWS Virtualization 52

Scalegrid

JANUARY 12, 2024

Key Takeaways A cloud workload encompasses any application or service running on a cloud infrastructure, facilitating tasks ranging from basic functions to advanced data analysis with the help of resources like databases, collaboration tools, and disaster recovery systems. Additionally. Additionally.

Cloud 130

Cloud Virtualization Storage Efficiency 130

Brendan Gregg

JULY 4, 2021

It's an exciting time for developments in computer performance, not just for the BPF technology (which I often [write about]) but also for processors with 3D stacking and cloud vendor CPUs (e.g., Ford, et al., “TCP on Upcoming Sapphire Rapids CPUs,” [link] Oct 2020 - [Liu 20] Linda Liu, “Samsung QVO vs EVO vs PRO: What’s the Difference?

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. This was a weird problem to think about: Time itself had now become a resource and target of performance analysis. Colleagues/Internet I love using [Linux performance tools]. Microbenchmark os::javaTimeMillis() on both systems.

Speed 40

Speed Java AWS Virtualization 40

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

All Things Distributed

JULY 11, 2011

Spot Instances are ideal for use cases like web and data crawling, financial analysis, grid computing, media transcoding, scientific research, and batch processing. To get started using Spot or for more details visit the Amazon EC2 Spot Instance web page, the AWS developer blog , and the EC2 Release Notes. Contact Info. Werner Vogels.

AWS 85

AWS Storage Cloud Big Data 85

All Things Distributed

APRIL 4, 2017

Today, I am very excited to announce our plans to open a new AWS Region in the Nordics! The new region will give Nordic-based businesses, government organisations, non-profits, and global companies with customers in the Nordics, the ability to leverage the AWS technology infrastructure from data centers in Sweden.

AWS 116

AWS Airlines Latency Games 116

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. My rock solid experience with Ubuntu is on an LTS release. ## Crash Dump Analysis It can be done. Many new tools can now be written, and the main toolkit we're working on is [bcc].

Virtualization 76

Virtualization AWS Engineering Hardware 76

All Things Distributed

APRIL 9, 2015

Details on the AWS Blog. AWS has been offering a range of storage solutions: objects, block storage, databases, archiving, etc. When we designed Amazon EFS we decided to build along the AWS principles: Elastic, scalable, highly available, consistent performance, secure, and cost-effective. Details on the AWS Blog.

Lambda 122

Lambda Cloud IoT AWS 122

All Things Distributed

JUNE 21, 2018

In fact, this is been proven by our customers as Amazon Aurora remains the fastest growing service in AWS history. We are increasingly seeing customers wanting to build Internet-scale applications that require diverse data models. The opposite is true. What we experienced at Amazon.com was using a database beyond its intended purpose.

Database 167

Database AWS Games Latency 167

Smashing Magazine

JANUARY 6, 2020

Treo Sites provides competitive analysis based on real-world data. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Large preview ). For high-pressure points like animation, it’s best to do nothing else where you can and the absolute minimum where you can't.

Performance 145

Performance Cache Network Metrics 145

All Things Distributed

NOVEMBER 15, 2010

For example, the most fundamental abstraction trade-off has always been latency versus throughput. Modern CPUs strongly favor lower latency of operations with clock cycles in the nanoseconds and we have built general purpose software architectures that can exploit these low latencies very well. Where to go from here?

AWS 136

AWS Latency Programming Architecture 136

Smashing Magazine

JANUARY 11, 2021

Treo provides competitive analysis based on real-world data. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Large preview ). New metrics landed in Lighthouse v6 in early 2020. Large preview ). Choose the right metrics. Not all metrics are equally important. Large preview ).

Performance 145

Performance Cache Media Metrics 145