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AWS re:Invent 2017: How Netflix Tunes EC2

Brendan Gregg

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. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. Networking. We help where we can. schedtool –B PID. Huge Pages.

Tuning 61
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AWS re:Invent 2017: How Netflix Tunes EC2

Brendan Gregg

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. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. Networking. We help where we can. schedtool –B PID. Huge Pages.

Tuning 52
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Tuning SQL Server Reporting Services

SQL Performance

For years SSRS was bundled with the installation of SQL Server, which helped add to some of the confusion around licensing and support for the product, so beginning with SSRS 2017, the installation package for Reporting Services is a separate download. Tuning Options. Tuning SSRS is much like any other application.

Tuning 67
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PostgreSQL vs. Oracle: Difference in Costs, Ease of Use & Functionality

Scalegrid

Compare ease of use across compatibility, extensions, tuning, operating systems, languages and support providers. Recognized as the fastest growing database by popularity, PostgreSQL was named the DBMS of the year in both 2018 and 2017 by DB-Engines, and continues to grow in popularity in 2019.

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Engineering a Studio Quality Experience With High-Quality Audio at Netflix

The Netflix TechBlog

In late 2017, we received some critical feedback from the brothers on the Stranger Things 2 audio mix: in some scenes, there was a reduced sense of where sounds are located in the 5.1-channel This approach selects the audio bitrate based on network conditions at the start of playback. Media is provided in several qualities.

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Solaris to Linux Migration 2017

Brendan Gregg

Both Xen and KVM have had many performance and security improvements, and workloads can now be tuned to run at almost bare metal speeds (say, a 3% loss or less). At my employer we sometimes use SR-IOV for direct network interface access, and NVMe for direct disk access. Outside of EC2, many other providers are deploying on KVM.

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Building Netflix’s Distributed Tracing Infrastructure

The Netflix TechBlog

Reconstructing a streaming session was a tedious and time consuming process that involved tracing all interactions (requests) between the Netflix app, our Content Delivery Network (CDN), and backend microservices. Our engineering teams tuned their services for performance after factoring in increased resource utilization due to tracing.