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