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

The Netflix TechBlog

NOVEMBER 22, 2019

To sustain this data growth at Netflix, it has deployed open-source software Ceph using AWS services to achieve the required SLOs of some of the post-production workflows. Netflix runs dozens of stateful services on AWS under strict sub-millisecond tail-latency requirements, which brings unique challenges.

AWS 37

AWS Entertainment Open Source Benchmarking 37

Brendan Gregg

JULY 2, 2021

If you're using an open source monitoring platform, first check if it already has a BPF agent. opensnoop Files opened table 3. biolatency Disk I/O latency histogram heat map 5. runqlat CPU scheduler latency heat map 10. Think of this as "version 1": A starting point that's pretty useful.

Open Source 40

Open Source Latency Cache Energy 40

Smashing Magazine

JANUARY 6, 2020

dashboard (open source), SpeedCurve and Calibre are just a few of them, and you can find more tools on perf.rocks. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Large preview ). There are many tools allowing you to achieve that: SiteSpeed.io

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

dashboard (open source), SpeedCurve and Calibre are just a few of them, and you can find more tools on perf.rocks. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. There are many tools allowing you to achieve that: SiteSpeed.io Assets Optimizations.

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

JANUARY 11, 2021

dashboard (open source), SpeedCurve and Calibre are just a few of them, and you can find more tools on perf.rocks. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. compared to early 2015. There are many tools allowing you to achieve that: SiteSpeed.io

Performance 145

Performance Cache Media Metrics 145

The Netflix TechBlog

DECEMBER 17, 2019

Therefore, dumps are needed to capture the full state of a source. There are several open source CDC projects, often using the same underlying libraries, database APIs, and protocols. We want to support these systems as a source so that they can provide their data for further consumption. Beresford, and Boerge Svingen.

Database 197

Database Traffic Transportation Open Source 197

The Netflix TechBlog

DECEMBER 17, 2019

Therefore, dumps are needed to capture the full state of a source. There are several open source CDC projects, often using the same underlying libraries, database APIs, and protocols. We want to support these systems as a source so that they can provide their data for further consumption. Beresford, and Boerge Svingen.

Database 212

Database Traffic Transportation Open Source 212