pj kack da2a5e3d66 Back out integrated changelist 5586728 (5571078) to resubmit all cook -iterate optimizations implemented on //UE4/Dev-core/... (see 5533504) ...

New AssetRegistryState::InitializeFromExistingAndPrune temporarily disabled until some bugs have been fixed.

Test Scenario:
1) BuildCookStageAndRun with these arguments: -platform=Win64 -configuration=Development
2) CookIterate with these arguments: -run=Cook -CookCultures=en -TargetPlatform=WindowsClient -unversioned -stdout -unattended -iterate

Wall Time Results (as an average of running step 2) two times):
Before: ~09:40 (580 seconds) cook commandlet time
After: ~02:30 (150 seconds) cook commandlet time
=> 07:10 (430 seconds ) faster, i.e. a ~ 3.9x speedup

Win32 FileSystem Results:
Before: 1.5 million GetFileAttribute calls and 1.2 million FindNextFile calls
After: 35 0000 GetFileAttribute calls and 1.6 million FindNextFile calls
=> ~400 000 calls to FindNextFile replaces ~1.5 million calls to GetFileAttribute

#rb none


(peafour-cherrypick of //UE4/Dev-Core/[at]5645695 by PJ.Kack)


#ROBOMERGE-OWNER: robert.manuszewski
#ROBOMERGE-AUTHOR: pj.kack
#ROBOMERGE-SOURCE: CL 5533504 via CL 5533655 via CL 5536177 via CL 5772728 via CL 5772753

[CL 5772793 by pj kack in Main branch]

2019-04-08 01:19:56 -04:00

..

Private

Back out integrated changelist 5586728 (5571078) to resubmit all cook -iterate optimizations implemented on //UE4/Dev-core/... (see 5533504)

2019-04-08 01:19:56 -04:00

Public

Back out integrated changelist 5586728 (5571078) to resubmit all cook -iterate optimizations implemented on //UE4/Dev-core/... (see 5533504)

2019-04-08 01:19:56 -04:00

RenderCore.Build.cs

Merging //UE4/Dev-Main@4662404 to Dev-Rendering (//UE4/Dev-Rendering)

2019-01-03 19:16:26 -05:00