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render3d: VkAllocationCallbacks counted (R3D_ALLOC_VK), pipeline create infos freed, actor pool at init

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Plan 25.1c: vk_mac.ll's @lvk_ac (posix_memalign under a 16-byte header of scope/offset/size, atomic
counters) passed at every render3d create/destroy (49 sites; the caps probe keeps its own null pair);
lvk_ac_bytes/_peak/_allocs/_scope_bytes for the fence, Vk.alloc_bytes. vk_win.ll: null and 0.
MoltenVK 1.4.2 counted 0 live bytes through them in steady. Fence findings: gvk_pipeline freed its 17
create infos (and reuses one bufs list); actor_init fills ac_spare with 512 records (actor_fresh,
m4_new, v3_new at first placement in play). Compiled, not run (the user's call).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 15:46:19 +03:00
parent edb33400b3
commit df6ea046c3
10 changed files with 266 additions and 52 deletions
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17
examples/rendering/steady.ludic
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@ -163,6 +163,18 @@ program Steady {
let am = gltf_load(render3d_st, "packages/ludic.lab/plate", "plate.gltf", "plate")
actor_rounds(render3d_st, am, 20)
let grew_a = actor_rounds(render3d_st, am, 2000)
# with R3D_ALLOC_VK=1 MoltenVK's own host allocations are counted (plan 25.1c): what a frame
# leaves among them, read the same way
var vk_live: long = 0
var vk_grew: long = 0
if render3d_st.gvk_ac != null {
frame_rounds(render3d_st, 60)
let v0 = Vk.alloc_bytes()
frame_rounds(render3d_st, 600)
vk_live = Vk.alloc_bytes()
vk_grew = vk_live - v0
print(`steady: Vulkan's host allocations {vk_live} bytes live (object {Vk.alloc_scope_bytes(1)}, command {Vk.alloc_scope_bytes(0)}), a frame kept {vk_grew} over 600`)
}
let grew_r = ramp_rounds(render3d_st, am)
let grew_s = stream_rounds(render3d_st, am)
let text = Fs.read_text("packages/ludic.lab/plate/plate.gltf")
@ -194,6 +206,11 @@ program Steady {
ok = false
print("steady: FAILED - a frame drawing more than before leaves memory behind")
}
# MoltenVK 1.4.2 honours the callbacks for few of its objects (it read 0 live): only growth fails
if render3d_st.gvk_ac != null and vk_grew > 0 {
ok = false
print("steady: FAILED - Vulkan's counted host allocations grow with the frame")
}
if grew_s >= 4096 {
ok = false
print("steady: FAILED - streaming new ground leaves memory behind")