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Conference

Lambda

Latency

Percentiles don’t work: Analyzing the distribution of response times for web services

Adrian Cockcroft

JANUARY 29, 2023

The mean and percentile measurements hide this structure, but the rest of this post will show how the structure can be measured and analyzed so that you can figure out a useful model of your system, understand what is driving the long tail of latencies and come up with better SLAs and measures of capacity.

Lambda

Lambda Latency Cache Traffic

Revisiting “Serverless Architectures”

The Symphonia

MAY 22, 2018

I was a little restricted in my thinking the first time around and I’ve come to see FaaS as something not quite stateless, since caching state in a Lambda instance that might stick around for 5 hours is a perfectly reasonable idea. I also rewrote the section on Startup Latency since Cold Starts are one of the big “FUD” areas of Serverless.

Serverless

Serverless Architecture Lambda Azure

Percentiles don’t work: Analyzing the distribution of response times for web services

Revisiting “Serverless Architectures”

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