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Towards a Reliable Device Management Platform

The Netflix TechBlog

Complementing the hardware is the software on the RAE and in the cloud, and bridging the software on both ends is a bi-directional control plane. For example, when running tests, the state of the device will change from “available for testing” to “in test.” In this blog post, we will focus on the latter feature set.

Latency 213
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Snap: a microkernel approach to host networking

The Morning Paper

I’m jumping ahead a bit here, but the component of Snap which provides the transport and communications stack is called Pony Express. Here are the bombshell paragraphs: Our datacenter applications seek ever more CPU-efficient and lower-latency communication, which Pony Express delivers. Enter Google! Emphasis mine). Emphasis mine).

Network 92
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RPCValet: NI-driven tail-aware balancing of µs-scale RPCs

The Morning Paper

Last week we learned about the [increased tail-latency sensitivity of microservices based applications with high RPC fan-outs. Seer uses estimates of queue depths to mitigate latency spikes on the order of 10-100ms, in conjunction with a cluster manager. So what we have here is a glimpse of the limits for low-latency RPCs under load.

Latency 80
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Why I hate MPI (from a performance analysis perspective)

John McCalpin

According to Dr. Bandwidth, performance analysis has two recurring themes: How fast should this code (or “simple” variations on this code) run on this hardware? The user environment defines the mapping of MPI ranks to hardware resources (cores, sockets, nodes). The source code to the library may not be available.

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Talk Video: Welcome to the Jungle (60 min version + Q&A)

Sutter's Mill

They made a nice recording and it’s now available online here: Facebook Engineering. Now welcome to the hardware jungle. The slides are available here. For those interested in a longer version, in April I gave a 105-minute + Q&A version of this talk in Kansas City at Perceptive, also available online where I posted before.

Latency 40
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Can You Afford It?: Real-world Web Performance Budgets

Alex Russell

If our example document wasn’t reliant on JavaScript to construct the <my-app> custom element, the contents of the document would likely be interactive as soon as enough CSS and content was available to render meaningfully. Any DOM or UI created in JS is not available for use until the script runs. 400Kbps transfer.

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Front-End Performance Checklist 2021

Smashing Magazine

Usually, the most specific and relevant ones are: Time to Interactive (TTI) The point at which layout has stabilized , key webfonts are visible, and the main thread is available enough to handle user input — basically the time mark when a user can interact with the UI. Large preview ).