In the examples below, <Node> is the name of a node in the cache store graph, or All to apply to every node.
-DDC-<Node>-MissTypes=StaticMesh+Texture will simulate a miss on every access to to static mesh and texture keys.
-DDC-<Node>-MissTypes=StaticMesh@12.5+Texture will simulate misses on 12.5% of accesses to static mesh keys and every access to texture keys.
-DDC-<Node>-MissRate=5 -DDC-<Node>-MissTypes=Texture will simulate misses on every access to texture keys and 5% of other keys.
-DDC-<Node>-MissRate=5 will simulate misses on 5% of keys.
-DDC-<Node>-MissSalt=PositiveInt32 will set the salt used to match keys to simulate misses on. A key always has the same simulated miss behavior with the same salt.
#preflight 6244d102b33098a72dc136df
#rb Zousar.Shaker
[CL 19572200 by Devin Doucette in ue5-main branch]
- Validate and shorten legacy keys lazily.
- Change to ValueOnly mode for PakFile and Zen.
#preflight 623235998a6037989395baf2
#rb Zousar.Shaker
#rnx
[CL 19410386 by Devin Doucette in ue5-main branch]
This is being resolved by cherrypicking 19196840 by mark.lintott from UE5/Main (see original changelist details at the end of this cl description). On top of the cherrypick, there was a change made to re-use a single Http request when fetching stats. This avoids the overhead of doing name resolution repeatedly if the zen instance has a name instead of IP address.
Tested by:
- Running ShooterGame editor & observing UnrealInsights for ZenHttp_CurlPerform timers and ensuring they are not happening on the game thread when the editor is sitting idle (they are on background threads instead)
-Terminating ZenServer.exe while the editor is running and observing whether the framerate of the editor is negatively affected
#rb matt.peters
[FYI] mark.lintott
#jira UE-132849
#jira UE-143182
#lockdown aurel.cordonnier
#preflight 6220038831454c90cc13a123
Original changelist:
============
Blocking Zen HTTP stats request now runs async using futures
#rb Andriy.Tylychko
#[fyi] Zousar.Shaker
#jira UE-132849
#preflight 621e0c71e15c51d8c5bd5967
#ushell-cherrypick of 19196840 by mark.lintott
#ROBOMERGE-OWNER: zousar.shaker
#ROBOMERGE-AUTHOR: zousar.shaker
#ROBOMERGE-SOURCE: CL 19234318 in //UE5/Release-5.0/... via CL 19236659
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v921-19075845)
[CL 19237357 by zousar shaker in ue5-main branch]
Change Zen to ValueWithLegacyFallback mode now that it handles Value PUTs to Jupiter correctly. Add Jupiter auto test that ensures a PUT via UE->Zen->UpstreamZen->Jupiter produces something that can be GET from UE<-Jupiter. Confirmed test passes.
#rb devin.doucette
#jira UE-134381
#lockdown Aurel.Cordonnier
#preflight 620b4e22bb6a072d17cdd6dd
[CL 18998519 by Zousar Shaker in ue5-main branch]
- FileSystem, Http, Pak, S3 use the ValueWithLegacyFallback mode by default, which cause them to fall back to searching for uncompressed data if compressed data is not found.
- FileSystem has been fixed to store up to 1 MiB of compressed data inline with the value package rather than separately in content-addressable storage.
- Pak has been optimized to have GetChunks only load the required region of the requested value, rather than the whole value.
- Pak has been changed to stop storing data inline in the record package, since it will end up in the same file anyway when stored separately.
- Pak will upgrade the compressor and compression level when a compressed pak file is requested. Default cache compression uses Oodle Mermaid VeryFast and will upgrade to Oodle Kraken Optimal2.
- Zen does not have compression enabled by default, pending deployment of a new version that stores compressed values to Horde Storage.
- Added a missing request barrier when saving uncompressed data as compressed.
Example reduction in file system cache size when cooking for Windows:
- CitySample dropped from 66.5 GiB to 21.8 GiB.
- Lyra dropped from 2.54 GiB to 672 MiB.
- ShooterGame dropped from 1.21 GiB to 380 MiB.
Example reduction in compressed pak file cache size when cooking for Windows:
- CitySample dropped from 22.3 GiB to 18.5 GiB.
- Lyra dropped from 691 MiB to 543 MiB.
- ShooterGame dropped from 387 MiB to 313 MiB.
#jira UE-134381
#preflight 620a703f583261b0a658e043, 620a6fb2803d9066e6805310, 620a733117632e948459b6af
#lockdown Aurel.Cordonnier
#rb Zousar.Shaker
#ROBOMERGE-AUTHOR: devin.doucette
#ROBOMERGE-SOURCE: CL 18983671 in //UE5/Release-5.0/... via CL 18983890 via CL 18984096
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v917-18934589)
[CL 18984126 by devin doucette in ue5-main branch]
