Brendan Gregg

JULY 4, 2021

Titus, the Netflix container management platform, is now open source,” [link] Apr 2018 - [Cutress 19] Dr. Ian Cutress, “Insights into DDR5 Sub-timings and Latencies,” [link] Oct 2020 - [Ford 20] A. 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 121

Performance Latency Hardware Storage 121

VoltDB

JULY 24, 2024

As part of our new support for ARM processors , we recently ran benchmarks on both Intel C7 and ARM c7g on AWS. Obviously, these numbers are not cast in stone because AWS can change them at any time for any reason, and large AWS customers often have their own pricing agreements. However, we used AWS spot pricing.

AWS 52

AWS Benchmarking Hardware Latency 52

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 103

Performance Latency Cache Virtualization 103

Adrian Cockcroft

NOVEMBER 18, 2019

AWS Developer Relations on how the shift from Robot Operating System (ROS) 1 to ROS 2 will change the landscape for all robot lovers. OPN205-R Contributing to the AWS Construct Library (repeats) Using and loving the AWS Cloud Development Kit and want to help make it better? Alejandra Olvera-Novack?—?AWS

Open Source 40

Open Source AWS Lambda Serverless 40

Adrian Cockcroft

NOVEMBER 18, 2019

AWS Developer Relations on how the shift from Robot Operating System (ROS) 1 to ROS 2 will change the landscape for all robot lovers. OPN205-R Contributing to the AWS Construct Library (repeats) Using and loving the AWS Cloud Development Kit and want to help make it better? Alejandra Olvera-Novack?—?AWS

Open Source 40

Open Source AWS Lambda Serverless 40

Brendan Gregg

JULY 4, 2021

Titus, the Netflix container management platform, is now open source,” [link] Apr 2018 - [Cutress 19] Dr. Ian Cutress, “Insights into DDR5 Sub-timings and Latencies,” [link] Oct 2020 - [Ford 20] A. 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

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

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. But there's another factor at play: jobs are also migrating from both Solaris and Linux to cloud jobs instead, specifically AWS. Hit Ctrl-C to end. ^C

Virtualization 75

Virtualization AWS Engineering Hardware 75

Percona

MAY 2, 2023

example.net --port=27017 --username=user --authenticationDatabase=admin --db=demo --collection=events --out=/opt/backup/mongodump-2011-10-24 Note : If we don’t specify the DB name or Collection name explicitly in the above “mongodump” syntax then the backup will be taken for the entire database or collections, respectively.

Best Practices 52

Best Practices Database Storage Servers 52

Smashing Magazine

JANUARY 6, 2020

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Designed for the modern web, it responds to actual congestion, rather than packet loss like TCP does, it is significantly faster , with higher throughput and lower latency — and the algorithm works differently.

Performance 112

Performance Cache Servers Network 112

Smashing Magazine

JANUARY 11, 2021

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Designed for the modern web, it responds to actual congestion, rather than packet loss like TCP does, it is significantly faster , with higher throughput and lower latency — and the algorithm works differently.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 7, 2019

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Brotli is widely supported, and many CDNs support it ( Akamai , AWS , KeyCDN , Fastly , Cloudlare , CDN77 ) and you can enable Brotli even on CDNs that don’t support it yet (with a service worker). Result: zero RTT for repeat views.

Performance 111

Performance Cache Network Metrics 111