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- 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]
25 lines
601 B
C++
25 lines
601 B
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreTypes.h"
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#include "Containers/StringFwd.h"
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#include "DerivedDataBackendInterface.h"
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namespace UE::DerivedData
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{
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class IPakFileCacheStore : public FDerivedDataBackendInterface
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{
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public:
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virtual void Close() = 0;
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virtual bool SaveCache() = 0;
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virtual bool LoadCache(const TCHAR* InFilename) = 0;
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virtual void MergeCache(IPakFileCacheStore* OtherPak) = 0;
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virtual const FString& GetFilename() const = 0;
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static bool SortAndCopy(const FString& InputFilename, const FString& OutputFilename);
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};
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} // UE::DerivedData
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