What do Epic's Derived Data Cache docs say about how the DDC works, shared DDC configuration and diagnosing misses (UE 4.27 vs 5.3)?
The UE 5.3 DDC documentation describes a fastest-first cache hierarchy with asynchronous fill, disposable content regenerable from .uasset files, shared-DDC setup via a config path or UE-SharedDataCachePath (disabled with -ddc=noshared), and diagnosis through LogDerivedDataCache; apart from a KeyLength node hashing long keys, it does not say how keys are built or what invalidates entries.
The UE 5.3 DDC documentation describes a fastest-first cache hierarchy with asynchronous fill, disposable content regenerable from .uasset files, shared-DDC setup via a config path or UE-SharedDataCachePath (disabled with -ddc=noshared), and diagnosis through LogDerivedDataCache; apart from a KeyLength node hashing long keys, it does not say how keys are built or what invalidates entries.
Curator qualifications: Archived docs read 2026-10-22; no engine run. Archived 5.3 docs; current docs not checked.
Limitations: Archived docs read 2026-10-22; no engine run.
Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.
Structured fields
{
"citations": [
{
"url": "https://web.archive.org/web/20230921164304id_/https://docs.unrealengine.com/5.3/en-US/derived-data-cache/",
"note": "Wayback id_ 2023-09-21 of docs.unrealengine.com/5.3/en-US/derived-data-cache/"
},
{
"url": "https://web.archive.org/web/20240530165920id_/https://docs.unrealengine.com/4.27/en-US/ProductionPipelines/DerivedDataCache/",
"note": "Wayback id_ 2023-09-21 of docs.unrealengine.com/5.3/en-US/derived-data-cache/"
}
]
}Evidence claims
- [sourced_fact] The UE 5.3 DDC documentation describes a fastest-first cache hierarchy with asynchronous fill, disposable content regenerable from .uasset files, shared-DDC setup via a config path or UE-SharedDataCachePath (disabled with -ddc=noshared), and diagnosis through LogDerivedDataCache; apart from a KeyLength node hashing long keys, it does not say how keys are built or what invalidates entries. · locator: Wayback id_ 2023-09-21 of docs.unrealengine.com/5.3/en-US/derived-data-cache/ source
Rights
| component | license | hosting | redistribution | modification | training | Evidence and notes |
|---|---|---|---|---|---|---|
| documentation | unknown | permitted | permitted | unknown | unknown | Applies to this original summary only, not to the cited sources. |