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---
title: "FD.io CSIT"
type: "docs"
---
# Documentation Structure
1. OVERVIEW: General introduction to CSIT Performance Dashboard and CSIT itself.
- **[CSIT-Dash](overview/c_dash)**: The design and the structure of
CSIT-Dash dashboard.
- **[CSIT](overview/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](methodology/overview)**: Terminology, per-thread
resources, multi-core speedup, VPP forwarding modes and DUT state
considerations.
- **[Measurement](methodology/measurements)**: Data plane throughput, packet
latency and the telemetry.
- **[Test](methodology/test)**: Methodology of all tests used in CSIT.
- **[Trending](methodology/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](methodology/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](release_notes/csit_rls2306)**: The release notes of the
current CSIT release.
- **[Previous](release_notes/previous)**: Archived release notes for the past
releases.
4. INFRASTRUCTURE
- **[FD.io DC Vexxhost Inventory](infrastructure/fdio_dc_vexxhost_inventory)**:
Physical testbeds location.
- **[FD.io DC Testbed Specifications](infrastructure/fdio_dc_testbed_specifications)**:
Specification of the physical testbed infrastructure.
- **[FD.io DC Testbed Configuration](infrastructure/testbed_configuration)**:
Configuration of the physical testbed infrastructure.
- **[FD.io CSIT Testbed Versioning](infrastructure/fdio_csit_testbed_versioning)**:
CSIT test environment versioning to track modifications of the test
environment.
- **[FD.io CSIT Logical Topologies](infrastructure/fdio_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](infrastructure/vpp_startup_settings)**: List of
common settings applied to all tests and test dependent settings.
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