[REVIEW] [at]michael.atchison [at]michael.kirzinger [at]joe.barnes
#rb [at]michael.atchison [at]michael.kirzinger
#tests Tested on console with boot hotfix applied.
#jira UE-196854
[CL 28415511 by lorry li in ue5-main branch]
- Reimplemented render command fence bundler flushing to keep the bundler active during a GC.
- Added insights regions to track render command pipe recording and fence bundler activity when the render commands channel is active.
- Cleaned up render command pipe recording so that it works properly with the fence bundler.
#rb chrisopher.waters
[FYI] Dominic.Couture
[CL 28206922 by zach bethel in ue5-main branch]
[Backout] - CL27745134
[FYI] stan.hormell
Original CL Desc
-----------------------------------------------------------------
[Backout] - CL27731288 - CIS / Build Errors
[FYI] Josh.Adams
Original CL Desc
-----------------------------------------------------------------
- Deprecated GetSectionPrivate and FindOrAddSection, and accessors in FConfigFile that could return a non-const FConfigSection (this is so we can track modifications to config values)
- Added AddToSection, RemoveKeyFromSection, etc to replace directly accessing a FConfigSection
- Fixed up Epic code for the deprecations (at least the majority, some projects that aren't built by Horde presubmit may have some that we will address going forward)
#jira UE-194955
#rb david.harvey and various others
[CL 27923017 by josh adams in ue5-main branch]
Example config in Editor.ini:
[Names]
PreallocateNames=10485760
PreallocateNameMemoryMB=900
#rb ben.zeigler
[CL 27883674 by robert millar in ue5-main branch]
[FYI] Josh.Adams
Original CL Desc
-----------------------------------------------------------------
- Deprecated GetSectionPrivate and FindOrAddSection, and accessors in FConfigFile that could return a non-const FConfigSection (this is so we can track modifications to config values)
- Added AddToSection, RemoveKeyFromSection, etc to replace directly accessing a FConfigSection
- Fixed up Epic code for the deprecations (at least the majority, some projects that aren't built by Horde presubmit may have some that we will address going forward)
#jira UE-194955
#rb david.harvey and various others
[CL 27745141 by stan hormell in ue5-main branch]
- Added AddToSection, RemoveKeyFromSection, etc to replace directly accessing a FConfigSection
- Fixed up Epic code for the deprecations (at least the majority, some projects that aren't built by Horde presubmit may have some that we will address going forward)
#jira UE-194955
#rb david.harvey and various others
[CL 27731364 by josh adams in ue5-main branch]
Add additional test string for where the PreInit module might be located
[REVIEW] [at]Per.Larson [at]PJ.Kack [at]Graeme.Thornton
[CL 27558915 by eric knapik in ue5-main branch]
Render Command Pipes dedicated asynchronous task pipes for render commands. Users can easily define new pipes and enqueue commands into them. Pipes can be synchronized using a scope to run serial render commands on the render thread, but initially pipes cannot be synchronized individually with each other. Render command overhead is reduced by recording command lambdas into MPSC queues which are serviced by the task graph; both for pipes and for the render thread. This reduces the task overhead as commands are no longer 1-to-1 with tasks.
Pipe behavior is controlled with new CVars. `r.RenderCommandPipeMode` controls overall behavior:
0 - Legacy render thread tasks,
1 - Render thread MPSC queue,
2 - Render thread and async pipe MPSC queues.
To define a Render Command Pipe, use DEFINE_RENDER_COMMAND_PIPE(MyPipe), or DECLARE_RENDER_COMMAND_PIPE(MyPipe, MODULE_API) to declare an extern reference.
Enqueue a command into the pipe like so:
ENQUEUE_RENDER_COMMAND(MyCommand)(UE::RenderCommandPipe::MyPipe, [] (FRHICommandList&) {}).
Omitting a pipe will fallback to the 'general' pipe which is the render thread.
Eventually pipes need to be synced back to the general pipe for scene renders and other GPU work. On the game thread timeline, use UE::RenderCommandPipe::FSyncScope to synchronize the pipes. This waits for pipes and disables recording of new pipe commands until the scope completes, at which point pipe recording is restarted. This creates a 'sync point', so render commands issued prior to a sync scope will be waited on at the start of the scope, and render commands issued after the scope ends will not be able to start until the render thread finishes processing prior commands.
#rb christopher.waters, luke.thatcher
[CL 27074956 by zach bethel in ue5-main branch]
[FYI] zach.bethel
Original CL Desc
-----------------------------------------------------------------
Render Command Pipe Implementation and API
Render Command Pipes dedicated asynchronous task pipes for render commands. Users can easily define new pipes and enqueue commands into them. Pipes can be synchronized using a scope to run serial render commands on the render thread, but initially pipes cannot be synchronized individually with each other. Render command overhead is reduced by recording command lambdas into MPSC queues which are serviced by the task graph; both for pipes and for the render thread. This reduces the task overhead as commands are no longer 1-to-1 with tasks.
Pipe behavior is controlled with new CVars. `r.RenderCommandPipeMode` controls overall behavior:
0 - Legacy render thread tasks,
1 - Render thread MPSC queue,
2 - Render thread and async pipe MPSC queues.
To define a Render Command Pipe, use DEFINE_RENDER_COMMAND_PIPE(MyPipe), or DECLARE_RENDER_COMMAND_PIPE(MyPipe, MODULE_API) to declare an extern reference.
Enqueue a command into the pipe like so:
ENQUEUE_RENDER_COMMAND(MyCommand)(UE::RenderCommandPipe::MyPipe, [] (FRHICommandList&) {}).
Omitting a pipe will fallback to the 'general' pipe which is the render thread.
Eventually pipes need to be synced back to the general pipe for scene renders and other GPU work. On the game thread timeline, use UE::RenderCommandPipe::FSyncScope to synchronize the pipes. This waits for pipes and disables recording of new pipe commands until the scope completes, at which point pipe recording is restarted. This creates a 'sync point', so render commands issued prior to a sync scope will be waited on at the start of the scope, and render commands issued after the scope ends will not be able to start until the render thread finishes processing prior commands.
#rb christopher.waters, luke.thatcher
[CL 27054009 by bob tellez in ue5-main branch]
Render Command Pipes dedicated asynchronous task pipes for render commands. Users can easily define new pipes and enqueue commands into them. Pipes can be synchronized using a scope to run serial render commands on the render thread, but initially pipes cannot be synchronized individually with each other. Render command overhead is reduced by recording command lambdas into MPSC queues which are serviced by the task graph; both for pipes and for the render thread. This reduces the task overhead as commands are no longer 1-to-1 with tasks.
Pipe behavior is controlled with new CVars. `r.RenderCommandPipeMode` controls overall behavior:
0 - Legacy render thread tasks,
1 - Render thread MPSC queue,
2 - Render thread and async pipe MPSC queues.
To define a Render Command Pipe, use DEFINE_RENDER_COMMAND_PIPE(MyPipe), or DECLARE_RENDER_COMMAND_PIPE(MyPipe, MODULE_API) to declare an extern reference.
Enqueue a command into the pipe like so:
ENQUEUE_RENDER_COMMAND(MyCommand)(UE::RenderCommandPipe::MyPipe, [] (FRHICommandList&) {}).
Omitting a pipe will fallback to the 'general' pipe which is the render thread.
Eventually pipes need to be synced back to the general pipe for scene renders and other GPU work. On the game thread timeline, use UE::RenderCommandPipe::FSyncScope to synchronize the pipes. This waits for pipes and disables recording of new pipe commands until the scope completes, at which point pipe recording is restarted. This creates a 'sync point', so render commands issued prior to a sync scope will be waited on at the start of the scope, and render commands issued after the scope ends will not be able to start until the render thread finishes processing prior commands.
#rb christopher.waters, luke.thatcher
[CL 27042459 by zach bethel in ue5-main branch]
josh adams
matt peters
allan bentham
guillaume abadie
lorry li
zach bethel
robert millar
gaspardpetit
stan hormell
adam kinge
eric knapik
wei liu
zack neyland
tim smith
rob krajcarski
bob tellez