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---
title: "FD.io CSIT"
type: "docs"
---
# Documentation Structure
1. OVERVIEW: General introduction to CSIT Performance Dashboard and CSIT itself.
- **C-Dash**: The design and the structure of C-Dash dashboard.
- **CSIT**: The design of the [FD.io](https://fd.io/) CSIT system, and the
description of the test scenarios, test naming and test tags.
2. METHODOLOGY
- **Overview**: Terminology, per-thread resources, multi-core speedup, VPP
forwarding modes and DUT state considerations.
- **Measurement**: Data plane throughput, packet latency and the telemetry.
- **Test**: Methodology of all tests used in CSIT.
- **Trending**: A high-level design of a system for continuous performance
measuring, trending and change detection for FD.io VPP SW data plane (and
other performance tests run within CSIT sub-project).
- **Per-patch Testing**: A methodology similar to trending analysis is used
for comparing performance before a DUT code change is merged.
3. RELEASE NOTES: Performance tests executed in physical FD.io testbeds.
- **CSIT rls2306**: The release notes of the current CSIT release.
- **Previous**: Archived release notes for the past releases.
4. INFRASTRUCTURE
- **FD.io DC Vexxhost Inventory**: Physical testbeds location.
- **FD.io DC Testbed Specifications**: Specification of the physical
testbed infrastructure.
- **FD.io DC Testbed Configuration**: Configuration of the physical
testbed infrastructure.
- **FD.io CSIT Testbed Versioning**: CSIT test environment versioning to
track modifications of the test environment.
- **FD.io CSIT Logical Topologies**: CSIT performance tests are executed on
physical testbeds. Based on the packet path thru server SUTs, three
distinct logical topology types are used for VPP DUT data plane testing.
- **VPP Startup Settings**: List of common settings applied to all tests and
test dependent settings.
- **TRex Traffic Generator**: Usage of TRex traffic generator and its traffic
modes, profiles etc.
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