# Cloudslab/cloudsim

CloudSim: A Framework For Modeling And Simulation Of Cloud Computing Infrastructures And Services

Repository: https://github.com/Cloudslab/cloudsim
Canonical: https://ross.abutalabs.com/products/cloudsim
Homepage: http://www.cloudbus.org/cloudsim/
Language: Java
License Family: other
Last push: 2026-01-10T18:48:22+00:00

## Health v2 (maintenance only)
Score: 53/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 61, release rhythm 17, longevity 100
- inputs: {"age_days": 4186, "days_push": 235, "days_rel": 394, "gap_med": 179, "n_releases_24m": 2}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1012, forks 579 (observed 2026-08-28T04:03:13.329578+00:00)

## What it is
CloudSim is a Java-based framework for modeling and simulating cloud computing infrastructures and services, including data centers, virtualized hosts, containers, and federated clouds. It lets researchers evaluate cloud applications and resource allocation policies repeatably without needing real testbeds.

## Use cases
- simulate cloud data center workloads before deployment
- evaluate VM placement and resource provisioning policies
- model energy-aware scheduling in cloud infrastructure
- test federated cloud scenarios in a repeatable experiment
- simulate data center network topologies for message-passing apps
- benchmark container scheduling strategies without real hardware

## When to choose
- you need repeatable, scalable experiments on cloud infrastructure designs
- you want to research VM allocation or energy-aware scheduling policies
- you're doing academic work on cloud computing and need an extensible simulation framework

## When to avoid
- you need to run real workloads on actual cloud infrastructure
- you want a production cloud orchestration tool rather than a simulator
- you need a non-JVM environment, since CloudSim is Java/Maven based

## Facets
- artifact type: library
- maturity: active
- function: simulation, benchmarking, developer-tools
- domain: cloud-computing, microservices, simulation
- platform: jvm, cross-platform
- tags: cloud-simulation, datacenter-modeling, virtualization, energy-aware-computing, academic-research, java, research

## Member repositories
- Cloudslab/cloudsim (main) score 53

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:13.329578+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:11:42.762175+00:00, confidence not recorded.
  - readme: https://github.com/Cloudslab/cloudsim (fetched 2026-08-28T04:03:13.329578+00:00, sha 888883307159)
  - homepage: http://www.cloudbus.org/cloudsim/ (fetched 2026-08-29T13:11:24.571152+00:00, sha 0f14ee8c77a1)
- Data as of 2026-08-30T08:39:29.467469+00:00.