Clear caches and update a canary value across the fork boundary to avoid touching pages that were allocated pre-fork to minimize unnecessary duplication of shared pages.
Savings depend on pre-fork fragmentation/slack and number of concurrent child processes.
#rb louisphilippe.seguin, johan.torp, arciel.rekman
#ROBOMERGE-OWNER: robert.millar
#ROBOMERGE-AUTHOR: robert.millar
#ROBOMERGE-SOURCE: CL 19057122 via CL 19057644 via CL 19057693 via CL 19057718 via CL 19057737 via CL 19059617
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v918-19018356)
[CL 19066314 by robert millar in ue5-main branch]
Details: removes duplicate checks on CpuChannel by resolving SpecIds inside the scope event structure and avoiding passing in CpuChannel as the fine-grained channel when we always check CpuChannel at least.
#rb jordan.cristiano
#ROBOMERGE-AUTHOR: evgenii.babinets
#ROBOMERGE-SOURCE: CL 19003995 via CL 19004354 via CL 19005197 via CL 19008129 via CL 19008734
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v917-18934589)
[CL 19008810 by evgenii babinets in ue5-main branch]
* An extra '&' token was removed on the type alias in the no logging case.
* In the case where trace is enabled, but logging is disabled, made a identical solution in TraceAuxImpl.
#rb ionut.matasaru
#jira UE-139439, UE-139433, UE-139444
#preflight 61e80742843acf1b2429961b
#ROBOMERGE-AUTHOR: johan.berg
#ROBOMERGE-SOURCE: CL 18657057 in //UE5/Release-5.0/... via CL 18657068 via CL 18657070
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v900-18638592)
[CL 18657072 by johan berg in ue5-main branch]
In order to be able to output detailed error and status messages to both core log or console feedback log depending on situation, add argument to set the target category. Also removed now redundant logs in console commands, since more detailed information is now emitted on the console feedback.
#preflight 61e56f34873f2ea48f23d007
#ROBOMERGE-OWNER: johan.berg
#ROBOMERGE-AUTHOR: johan.berg
#ROBOMERGE-SOURCE: CL 18632544 in //UE5/Release-5.0/... via CL 18633016 via CL 18633031
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v899-18417669)
#ROBOMERGE-CONFLICT from-shelf
[CL 18637343 by johan berg in ue5-main branch]
We need to set this define in other platform build files, and since some of them are included on windows (editor) builds as well, we can end up with warnings of redefinition of variable.
#preflight 61e025e11e7c2075bb218b0f
#ROBOMERGE-AUTHOR: johan.berg
#ROBOMERGE-SOURCE: CL 18595866 in //UE5/Release-5.0/... via CL 18595880 via CL 18595890
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Test -> Main) (v899-18417669)
[CL 18596773 by johan berg in ue5-main branch]
#preflight 61e01e2e1e7c2075bb207de7
#ROBOMERGE-AUTHOR: johan.berg
#ROBOMERGE-SOURCE: CL 18595647 in //UE5/Release-5.0/... via CL 18595651 via CL 18595655
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Test -> Main) (v899-18417669)
[CL 18596721 by johan berg in ue5-main branch]
Refactor csvExecCmds to move the initialization logic into the CSV profiler itself. The execution still needs to happen in the engine, but this is now done during normal frame processing.
Fix a bug when processing csv execcmds with colons, e.g file paths
#ROBOMERGE-OWNER: ben.woodhouse
#ROBOMERGE-AUTHOR: ben.woodhouse
#ROBOMERGE-SOURCE: CL 18442929 via CL 18442943 via CL 18442951 via CL 18445402 via CL 18445577 via CL 18445604
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Test -> Main) (v897-18405271)
[CL 18447887 by ben woodhouse in ue5-main branch]
Refactor csvExecCmds to move the initialization logic into the CSV profiler itself. The execution still needs to happen in the engine, but this is now done during normal frame processing.
Fix a bug when processing csv execcmds with colons, e.g file paths
#ROBOMERGE-OWNER: ben.woodhouse
#ROBOMERGE-AUTHOR: ben.woodhouse
#ROBOMERGE-SOURCE: CL 18442929 via CL 18442943 via CL 18442951 via CL 18445402 via CL 18445577
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v897-18405271)
[CL 18445604 by ben woodhouse in ue5-release-engine-test branch]
* TraceMalloc should not use it's own root heap. Instead it will use a regular heap in system memory and make fake heaps (since we can't track virtual allocations for trace's own allocations).
* The first named was miscategorized as a root heap.
#rb ionut.matasaru
#ROBOMERGE-AUTHOR: johan.berg
#ROBOMERGE-SOURCE: CL 18417001 in //UE5/Release-5.0/... via CL 18417015
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v897-18405271)
[CL 18417028 by johan berg in ue5-release-engine-test branch]
* Adds special value reserved to Trace allocations
* Adds checks to avoid collisions between FName indices and ELLMTags.
#preflight 61af41ca353890ce23edcf36
#ROBOMERGE-AUTHOR: johan.berg
#ROBOMERGE-SOURCE: CL 18393722 in //UE5/Release-5.0/... via CL 18393732
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v896-18170469)
[CL 18393738 by johan berg in ue5-release-engine-test branch]
This results in output like the following:
Object NumKB MaxKB ResExcKB ResExcDedSysKB ResExcDedVidKB ResExcUnkKB
StaticMesh /Game/AncientContent/Megascans/Surfaces/Rock/SM_RockRough1.SM_RockRough1 1.31 1.33 395.50 12.75 0.00 382.75
None 12.75
None 0.79
TexcoordBuffer and TangentBuffer 66.35
PositionVertexBuffer 5.53
ColorVertexBuffer 22.12
IndexBuffer 95.99
ReversedDepthOnlyIndexBuffer 95.99
ReversedIndexBuffer 95.99
WireframeIndexBuffer 0.00
- Adding a `-verbose` flag to `obj list` which will dump each tracked named size.
- Adding additional `AddSharedSystemMemoryBytes(const FName& Tag, const SIZE_T InMemoryBytes)` function which accepts a named tag.
- Modify FStaticMeshLODResources::GetResourceSizeEx() to use the new interface.
- Modify FSkeletalMeshLODRenderData::GetResourceSizeEx() to use the new interface.
- Remove the "Shared" version of the memory tracking functions. These are not used at all across the engine. This simplifies the code and makes the output of obj list more readable.
- Move FResourceSizeEx into its own cpp file so modifying the header isn't a painful full recompile.
#rb dave.jones2
#jira none
#preflight 619bb03f88439fccfe625cba
#ROBOMERGE-AUTHOR: jason.nadro
#ROBOMERGE-SOURCE: CL 18259478 in //UE5/Release-5.0/... via CL 18259492
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18259504 by jason nadro in ue5-release-engine-test branch]
Add support for emitting named events from timing stats without compiling them in. This is controlled via new commandline options, which can be used in combination:
-csvNamedEvents emits named events for exclusive stats
-csvNamedEventsTiming emits named events for standard timing stats
Instrumentation overhead reduction
-Make it possible to disable CSVPROFILERTRACE_ENABLED, since this increases CSV profiler instrumentation overhead by about 15%
- Remove LLM scopes from stat functions and move into stat block allocation function. Reduces overhead slightly
#ROBOMERGE-AUTHOR: ben.woodhouse
#ROBOMERGE-SOURCE: CL 18253615 via CL 18253616 via CL 18253618 via CL 18253622 via CL 18253625 via CL 18254405 via CL 18254407
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18254408 by ben woodhouse in ue5-release-engine-test branch]
This represents UE4/Main @18073326, Release-5.0 @18081140 and Dev-PerfTest @18045971
[CL 18081471 by aurel cordonnier in ue5-release-engine-test branch]
