# Function as a Service (FaaS)

Published articles for Function as a Service (FaaS).

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## Types of Cloud Service Models

DevFeed: [Types of Cloud Service Models](<https://devfeed.tech/articles/types-of-cloud-service-models-17763.md>)

Original publisher: [Read original article](<https://talent500.com/blog/types-of-cloud-service-models/>)

Author: Sumit Malviya

Published: 2026-03-12T07:01:39Z

Content type: tutorial

Language: en

Sources: [Backend Archives | Talent500 blog](<https://devfeed.tech/sources/backend-archives-talent500-blog.md>)

Topics: [cloud-computing](<https://devfeed.tech/topics/cloud-computing.md>), [paas and iaas](<https://devfeed.tech/topics/paas-and-iaas.md>), [Software as a service](<https://devfeed.tech/topics/saas.md>), [Architecture & Design](<https://devfeed.tech/topics/architecture-design.md>), [Multi-tenancy](<https://devfeed.tech/topics/multi-tenancy.md>)

Tags: [advantages-and-disadvantages-of-cloud-service-models](<https://devfeed.tech/tags/advantages-and-disadvantages-of-cloud-service-models.md>), [architecture](<https://devfeed.tech/tags/architecture.md>), [backend](<https://devfeed.tech/tags/backend.md>), [best-practices-for-implementation-of-cloud-models](<https://devfeed.tech/tags/best-practices-for-implementation-of-cloud-models.md>), [choosing-the-right-cloud-service-model](<https://devfeed.tech/tags/choosing-the-right-cloud-service-model.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [cloud-computing](<https://devfeed.tech/tags/cloud-computing.md>), [comparing-saas-paas-and-iaas](<https://devfeed.tech/tags/comparing-saas-paas-and-iaas.md>), [conclusion](<https://devfeed.tech/tags/conclusion.md>), [container-as-a-service-caas](<https://devfeed.tech/tags/container-as-a-service-caas.md>), [emerging-cloud-service-models](<https://devfeed.tech/tags/emerging-cloud-service-models.md>), [function-as-a-service-faas](<https://devfeed.tech/tags/function-as-a-service-faas.md>), [future-trends-in-cloud-service-models](<https://devfeed.tech/tags/future-trends-in-cloud-service-models.md>), [infrastructure-as-a-service-iaas](<https://devfeed.tech/tags/infrastructure-as-a-service-iaas.md>), [paas-and-iaas](<https://devfeed.tech/tags/paas-and-iaas.md>), [platform-as-a-service-paas](<https://devfeed.tech/tags/platform-as-a-service-paas.md>), [saas](<https://devfeed.tech/tags/saas.md>), [scalability](<https://devfeed.tech/tags/scalability.md>), [software-as-a-service-saas](<https://devfeed.tech/tags/software-as-a-service-saas.md>), [the-three-main-cloud-service-models](<https://devfeed.tech/tags/the-three-main-cloud-service-models.md>), [types-of-cloud-service-models](<https://devfeed.tech/tags/types-of-cloud-service-models.md>), [use-cases-for-every-cloud-service-model](<https://devfeed.tech/tags/use-cases-for-every-cloud-service-model.md>)

### AI overview

This article explains the main cloud service delivery models: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). It also introduces emerging models such as FaaS and CaaS and discusses SaaS tenancy choices.

### Source excerpt

Cloud computing has fundamentally changed how organizations build, deploy, and scale IT systems. Instead of investing heavily in on-premises hardware [...] The post Types of Cloud Service Models appeared first on Talent500 blog.

## Meta's serverless platform processes trillions of function calls a day

DevFeed: [Meta's serverless platform processes trillions of function calls a day](<https://devfeed.tech/articles/meta-s-serverless-platform-processes-trillions-of-function-calls-a-day-39093.md>)

Original publisher: [Read original article](<https://read.engineerscodex.com/p/meta-xfaas-serverless-functions-explained>)

Author: Engineer's Codex

Published: 2023-10-22T17:32:27Z

Content type: article

Language: en

Sources: [Engineer's Codex](<https://devfeed.tech/sources/engineer-s-codex.md>)

Topics: [Meta](<https://devfeed.tech/topics/meta.md>), [Function as a Service (FaaS)](<https://devfeed.tech/topics/function-as-a-service-faas.md>), [AWS Lambda](<https://devfeed.tech/topics/aws-lambda.md>), [Google Cloud Platform (GCP)](<https://devfeed.tech/topics/google-cloud.md>), [Cloud](<https://devfeed.tech/topics/cloud.md>), [benchmarking](<https://devfeed.tech/topics/benchmarking.md>)

Tags: [aws](<https://devfeed.tech/tags/aws.md>), [aws-lambda](<https://devfeed.tech/tags/aws-lambda.md>), [azure](<https://devfeed.tech/tags/azure.md>), [azure-functions](<https://devfeed.tech/tags/azure-functions.md>), [cloud-functions](<https://devfeed.tech/tags/cloud-functions.md>), [faas](<https://devfeed.tech/tags/faas.md>), [function-as-a-service-faas](<https://devfeed.tech/tags/function-as-a-service-faas.md>), [meta](<https://devfeed.tech/tags/meta.md>), [performance](<https://devfeed.tech/tags/performance.md>), [serverless](<https://devfeed.tech/tags/serverless.md>)

### AI overview

This article summarizes and explains Meta's XFaaS, a private serverless platform for non-user-facing functions. It describes how XFaaS reduces startup overhead, predicts spiky workloads, and spreads work across time and datacenters to improve hardware utilization and manage cost.

### Source excerpt

XFaaS is Meta's private platform for "Hyperscale and Low Cost Serverless Functions." It is more efficient than AWS Lambda, Azure Functions, and Google Cloud Functions.