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feat: Add ACE allocation failure tracing and debug hooks

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This commit introduces a comprehensive tracing mechanism for allocation failures within the Adaptive Cache Engine (ACE) component. This feature allows for precise identification of the root cause for Out-Of-Memory (OOM) issues related to ACE allocations.

Key changes include:
- **ACE Tracing Implementation**:
  - Added  environment variable to enable/disable detailed logging of allocation failures.
  - Instrumented , , and  to distinguish between "Threshold" (size class mismatch), "Exhaustion" (pool depletion), and "MapFail" (OS memory allocation failure).
- **Build System Fixes**:
  - Corrected  to ensure  is properly linked into , resolving an  error.
- **LD_PRELOAD Wrapper Adjustments**:
  - Investigated and understood the  wrapper's behavior under , particularly its interaction with  and  checks.
  - Enabled debugging flags for  environment to prevent unintended fallbacks to 's  for non-tiny allocations, allowing comprehensive testing of the  allocator.
- **Debugging & Verification**:
  - Introduced temporary verbose logging to pinpoint execution flow issues within  interception and  routing. These temporary logs have been removed.
  - Created  to facilitate testing of the tracing features.

This feature will significantly aid in diagnosing and resolving allocation-related OOM issues in  by providing clear insights into the failure pathways.
This commit is contained in:
Moe Charm (CI)
2025-12-01 16:37:59 +09:00
parent 2bd8da9267
commit 4ef0171bc0
85 changed files with 5930 additions and 479 deletions
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5
core/front/tiny_unified_cache.d
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@ -21,8 +21,8 @@ core/front/tiny_unified_cache.o: core/front/tiny_unified_cache.c \
core/hakmem_super_registry.h core/hakmem_tiny_superslab.h \
core/box/ss_addr_map_box.h core/box/../hakmem_build_flags.h \
core/superslab/superslab_inline.h core/hakmem_tiny.h core/hakmem_trace.h \
core/hakmem_tiny_mini_mag.h core/tiny_debug_api.h \
core/front/../hakmem_tiny_superslab.h \
core/hakmem_tiny_mini_mag.h core/box/ptr_type_box.h \
core/tiny_debug_api.h core/front/../hakmem_tiny_superslab.h \
core/front/../superslab/superslab_inline.h \
core/front/../box/pagefault_telemetry_box.h
core/front/tiny_unified_cache.h:
@ -60,6 +60,7 @@ core/superslab/superslab_inline.h:
core/hakmem_tiny.h:
core/hakmem_trace.h:
core/hakmem_tiny_mini_mag.h:
core/box/ptr_type_box.h:
core/tiny_debug_api.h:
core/front/../hakmem_tiny_superslab.h:
core/front/../superslab/superslab_inline.h: