AWS Lambda

When Does Cold Start Happen on AWS Lambda?

The first cold start happens when the very first request comes in. After that request is processed, the instance stays alive for the time being to be reused for subsequent requests.

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Comparison of Cold Starts in Serverless Functions across AWS, Azure, and GCP

AWS Lambda, Azure Functions, and Google Cloud Functions compared in terms of cold starts across all supported languages

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Cold Starts in AWS Lambda

Selection of languages, instance sizes, dependencies, VPC, and more

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Cold Start Duration of VPC-connected AWS Lambda

AWS Lambda might need to access resources inside Amazon Virtual Private Cloud (Amazon VPC). In the past, configuring VPC access slowed down the cold starts significantly.

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AWS Lambda: Cold Start Duration per Language

The following chart shows the typical range of cold starts in AWS Lambda, broken down per language. The darker ranges are the most common 67% of durations, and lighter ranges include 95%.

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AWS Lambda: Cold Start Duration per Instance Size

AWS Lambda has a setting to define the memory size that gets allocated to a single instance of a function. The CPU resources are allocated proportionally to the memory.

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InfiniCache: Distributed Cache on Top of AWS Lambda (paper review)

My review of the paper "InfiniCache: Exploiting Ephemeral Serverless Functions to Build a Cost-Effective Memory Cache"

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Provisioned Concurrency: Avoiding Cold Starts in AWS Lambda

AWS recently announced the launch of Provisioned Concurrency, a new feature of AWS Lambda that intends to solve the problem of cold starts.

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Choosing the Best Deployment Tool for Your Serverless Applications

Factors to consider while deploying cloud infrastructure for serverless apps.

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AWS Lambda vs. Azure Functions: 10 Major Differences

A comparison AWS Lambda with Azure Functions, focusing on their unique features and limitations.

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How to Avoid Cost Pitfalls by Monitoring APIs in AWS Lambda

How to monitor your APIs using serverless technologies and an Epsagon dashboard.

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AWS Lambda Cold Starts After 10 Minutes

How AWS Lambda changed the policy of recycling idle instances

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Concurrency and Isolation in Serverless Functions

Exploring approaches to sharing or isolating resources between multiple executions of the same cloud function and the associated trade-offs.

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Visualizing Cold Starts

Serverless cold starts illustrated with animated GIFs.

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Serverless at Scale: Serving StackOverflow-like Traffic

Scalability test for HTTP-triggered serverless functions across AWS, Azure and GCP

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From 0 to 1000 Instances: How Serverless Providers Scale Queue Processing

Comparison of queue processing scalability for FaaS across AWS, Azure and GCP

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Serverless: Cold Start War

Comparison of cold start statistics for FaaS across AWS, Azure and GCP

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AWS Lambda Warmer as Pulumi Component

Preventing cold stats of AWS Lambda during longer periods of inactivity, implemented as a reusable Pulumo component

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Getting Started with AWS Lambda in Pulumi

Provisioning AWS Lambda and API Gateway with Pulumi, examples in 5 programming languages

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