Fr0zka/VoxelForge
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wip(assembler): round L4 -- lazy per-thread caches: 17.3 MiB -> 43 KiB per thread, view 7% faster

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VoxelForgeCoreThreadLocal::FLazy<T> (new public header ThreadLocalStorage.h) makes every large
thread_local cache a pointer that heap-allocates on that thread's first use (still worker-private,
lock-free). Static TLS 17.33 MiB -> 43 KiB (initialised image 5.8 MiB -> 21 KiB); worker start
5.2 -> 0.12 ms; idle worker RSS 17.7 MiB -> 52 KiB. Linux workers back to 8 MiB stacks.
World unchanged (L1 hashes Clang off/GCC default, W1/W12; FloatingIslands seed 0).
Reviewer interleaved W12: 2.256 -> 2.091 s. MSVC/UBT not compiled here.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ED33VnqepD4YY6gDAAA832
This commit is contained in:
Fr0zkaandClaude Opus 5.5 committed 2026-10-19 19:16:14 +02:00
1 parent 046f2af495
commit 7770074503
15 files changed
+361 -48
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Standalone/Source/StreamBenchmarkHeadless.cpp
+13 -1
View File
@@ -44,6 +44,7 @@ namespace
bool FloatingIslandsRecipe=false;
bool TlsProbeRequested=false;
int TlsProbeWorkers=0;
std::string TlsProbeTouch="none";
bool HasCamera=false;
bool AutoSurfaceCamera=false;
FVector CameraMeters=FVector::ZeroVector;
@@ -90,6 +91,7 @@ namespace
" --mesh-coverage (report non-empty tiles and indexed triangles)\n"
" --render-distance-chunks=N (0 disables the extra far ring)\n"
" --tls-probe=N (Linux worker TLS/stack measurement; N=0..12)\n"
" --tls-probe-touch=none|surface-world|floating-islands (first-use probe)\n"
" --process-affinity=MASK --process-priority=Normal --frame-limit=FPS (viewer compatibility only)\n",
argv[0]);
return false;
@@ -124,6 +126,13 @@ namespace
{std::fprintf(stderr,"--tls-probe must be in 0..12\n");return false;}
options.TlsProbeRequested=true;
}
else if(arg.starts_with("--tls-probe-touch="))
{
const std::string_view touch=arg.substr(std::string_view("--tls-probe-touch=").size());
if(touch!="none"&&touch!="surface-world"&&touch!="floating-islands")
{std::fprintf(stderr,"Invalid --tls-probe-touch value: %.*s\n",static_cast<int>(touch.size()),touch.data());return false;}
options.TlsProbeTouch=touch;
}
else if(arg.starts_with("--camera="))
{
if(!ParseCamera(arg.substr(9),options.CameraMeters))
@@ -154,6 +163,8 @@ namespace
options.ClipRadius=std::clamp(options.ClipRadius,1,64);
options.MaxClipLevel=std::clamp(options.MaxClipLevel,0,8);
options.FarHorizonLOD8InteriorStepVoxels=std::max(0,options.FarHorizonLOD8InteriorStepVoxels);
if(!options.TlsProbeRequested&&options.TlsProbeTouch!="none")
{std::fprintf(stderr,"--tls-probe-touch requires --tls-probe=N\n");return false;}
if(options.TlsProbeRequested)return true;
if(!options.WorldAssemblerPrototype||!options.StreamBenchmark||!options.StreamPipeline)
{
@@ -170,7 +181,8 @@ int main(int argc,char** argv)
const auto coldStart=Clock::now();
FOptions options;
if(!ParseOptions(argc,argv,options))return 2;
if(options.TlsProbeRequested)return StandaloneTlsProbe::Run(options.TlsProbeWorkers);
if(options.TlsProbeRequested)
return StandaloneTlsProbe::Run(options.TlsProbeWorkers,options.TlsProbeTouch);
std::printf("[HeadlessConfig] data=%s workers=%d clip_radius=%d max_clip_level=%d max_level=%d hash=%s column_overlap=%s force_generate=%s recipe=%s seed_override=%s render_distance_override=%s\n",
options.DataPath.string().c_str(),options.WorkerCount,options.ClipRadius,options.MaxClipLevel,
options.MaxLevel,options.StreamHash?"on":"off",options.ProfileColumnOverlap?"on":"off",