hakmem/mid_1t_256.strace

[hakmem] [Whale] Initialized (capacity=8, threshold=2 MB)
[hakmem] EVO sampling disabled (HAKMEM_EVO_SAMPLE not set or 0)
[hakmem] Baseline: soft_pf=174, hard_pf=0, rss=2304 KB
[hakmem] Initialized (PoC version)
[hakmem] Sampling rate: 1/1
[hakmem] Max sites: 256
[hakmem] Invalid free mode: skip check (default)
[Pool] hak_pool_init() called for the first time
[Pool] hak_pool_init_impl() EXECUTING - Bridge class fix applied
[Pool] Initialized (L2 Hybrid Pool) - Bridge classes SHOULD be enabled
[Pool] Class 5 (40KB): 40960
[Pool] Class 6 (52KB): 53248
[hakmem] [Pool] Initialized (L2 Hybrid Pool)
[hakmem] [Pool] Class configuration:
[hakmem]   Class 0: 2 KB (ENABLED)
[hakmem]   Class 1: 4 KB (ENABLED)
[hakmem]   Class 2: 8 KB (ENABLED)
[hakmem]   Class 3: 16 KB (ENABLED)
[hakmem]   Class 4: 32 KB (ENABLED)
[hakmem]   Class 5: 40 KB (ENABLED)
[hakmem]   Class 6: 52 KB (ENABLED)
[hakmem] [Pool] Page size: 64 KB
[hakmem] [Pool] Shards: 64 (site-based)
[Pool] Pre-allocated 4 pages for Bridge class 5 (40 KB) - Critical for 33KB allocs
[Pool] Pre-allocated 4 pages for Bridge class 6 (52 KB)
[hakmem] [L2.5] Initialized (LargePool)
[hakmem] [L2.5] Classes: 64KB, 128KB, 256KB, 512KB, 1MB
[hakmem] [L2.5] Page size: 64 KB
[hakmem] [L2.5] Shards: 64 (site-based)
[hakmem] [BigCache] Initialized (Phase 2c: Dynamic hash table)
[hakmem] [BigCache] Initial capacity: 256 buckets, max: 65536 buckets
[hakmem] [BigCache] Load factor: 0.75, min size: 512 KB
[ELO] Initialized 12 strategies (thresholds: 512KB-32MB)
[Batch] Initialized (threshold=8 MB, min_size=64 KB, bg=on)
[ADAPTIVE] Adaptive sizing initialized (initial_cap=64, min=16, max=2048)
[ACE] ACE disabled (HAKMEM_ACE_ENABLED=0)
[SUPERSLAB_MMAP] #1: class=0 size=2097152 (total SuperSlab mmaps so far)
[HAKMEM] Initialized SuperSlabHead for class 0: 1 initial chunks
[BATCH_CARVE] cls=0 slab=1 used=0 cap=8192 batch=16 base=0x7654b6c10000 bs=8
[SUPERSLAB_MMAP] #2: class=1 size=2097152 (total SuperSlab mmaps so far)
[HAKMEM] Initialized SuperSlabHead for class 1: 1 initial chunks
[SUPERSLAB_MMAP] #3: class=2 size=2097152 (total SuperSlab mmaps so far)
[HAKMEM] Initialized SuperSlabHead for class 2: 1 initial chunks
[SUPERSLAB_MMAP] #4: class=3 size=2097152 (total SuperSlab mmaps so far)
[HAKMEM] Initialized SuperSlabHead for class 3: 1 initial chunks
[SUPERSLAB_MMAP] #5: class=4 size=2097152 (total SuperSlab mmaps so far)
[HAKMEM] Initialized SuperSlabHead for class 4: 1 initial chunks
[SUPERSLAB_MMAP] #6: class=5 size=2097152 (total SuperSlab mmaps so far)
[HAKMEM] Initialized SuperSlabHead for class 5: 1 initial chunks
[SUPERSLAB_MMAP] #7: class=6 size=2097152 (total SuperSlab mmaps so far)
[HAKMEM] Initialized SuperSlabHead for class 6: 1 initial chunks
[SUPERSLAB_MMAP] #8: class=7 size=2097152 (total SuperSlab mmaps so far)
[SUPERSLAB_INIT] class 7 slab 0: usable_size=63488 block_size=1024 capacity=62
[SUPERSLAB_INIT] Expected: 63488 / 1024 = 62 blocks
[HAKMEM] Initialized SuperSlabHead for class 7: 1 initial chunks
[hakmem] TLS cache pre-warmed for 8 classes
[Pool] hak_pool_try_alloc FIRST CALL EVER!
% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 56.02    0.000121           3        38           mmap
 39.81    0.000086           7        12           munmap
  4.17    0.000009           4         2           madvise
------ ----------- ----------- --------- --------- ----------------
100.00    0.000216           4        52           total
Tiny: fix header/stride mismatch and harden refill paths - Root cause: header-based class indexing (HEADER_CLASSIDX=1) wrote a 1-byte header during allocation, but linear carve/refill and initial slab capacity still used bare class block sizes. This mismatch could overrun slab usable space and corrupt freelists, causing reproducible SEGV at ~100k iters. Changes - Superslab: compute capacity with effective stride (block_size + header for classes 0..6; class7 remains headerless) in superslab_init_slab(). Add a debug-only bound check in superslab_alloc_from_slab() to fail fast if carve would exceed usable bytes. - Refill (non-P0 and P0): use header-aware stride for all linear carving and TLS window bump operations. Ensure alignment/validation in tiny_refill_opt.h also uses stride, not raw class size. - Drain: keep existing defense-in-depth for remote sentinel and sanitize nodes before splicing into freelist (already present). Notes - This unifies the memory layout across alloc/linear-carve/refill with a single stride definition and keeps class7 (1024B) headerless as designed. - Debug builds add fail-fast checks; release builds remain lean. Next - Re-run Tiny benches (256/1024B) in debug to confirm stability, then in release. If any remaining crash persists, bisect with HAKMEM_TINY_P0_BATCH_REFILL=0 to isolate P0 batch carve, and continue reducing branch-miss as planned. 2025-11-09 18:55:50 +09:00			`[hakmem] [Whale] Initialized (capacity=8, threshold=2 MB)`
			`[hakmem] EVO sampling disabled (HAKMEM_EVO_SAMPLE not set or 0)`
			`[hakmem] Baseline: soft_pf=174, hard_pf=0, rss=2304 KB`
			`[hakmem] Initialized (PoC version)`
			`[hakmem] Sampling rate: 1/1`
			`[hakmem] Max sites: 256`
			`[hakmem] Invalid free mode: skip check (default)`
			`[Pool] hak_pool_init() called for the first time`
			`[Pool] hak_pool_init_impl() EXECUTING - Bridge class fix applied`
			`[Pool] Initialized (L2 Hybrid Pool) - Bridge classes SHOULD be enabled`
			`[Pool] Class 5 (40KB): 40960`
			`[Pool] Class 6 (52KB): 53248`
			`[hakmem] [Pool] Initialized (L2 Hybrid Pool)`
			`[hakmem] [Pool] Class configuration:`
			`[hakmem] Class 0: 2 KB (ENABLED)`
			`[hakmem] Class 1: 4 KB (ENABLED)`
			`[hakmem] Class 2: 8 KB (ENABLED)`
			`[hakmem] Class 3: 16 KB (ENABLED)`
			`[hakmem] Class 4: 32 KB (ENABLED)`
			`[hakmem] Class 5: 40 KB (ENABLED)`
			`[hakmem] Class 6: 52 KB (ENABLED)`
			`[hakmem] [Pool] Page size: 64 KB`
			`[hakmem] [Pool] Shards: 64 (site-based)`
			`[Pool] Pre-allocated 4 pages for Bridge class 5 (40 KB) - Critical for 33KB allocs`
			`[Pool] Pre-allocated 4 pages for Bridge class 6 (52 KB)`
			`[hakmem] [L2.5] Initialized (LargePool)`
			`[hakmem] [L2.5] Classes: 64KB, 128KB, 256KB, 512KB, 1MB`
			`[hakmem] [L2.5] Page size: 64 KB`
			`[hakmem] [L2.5] Shards: 64 (site-based)`
			`[hakmem] [BigCache] Initialized (Phase 2c: Dynamic hash table)`
			`[hakmem] [BigCache] Initial capacity: 256 buckets, max: 65536 buckets`
			`[hakmem] [BigCache] Load factor: 0.75, min size: 512 KB`
			`[ELO] Initialized 12 strategies (thresholds: 512KB-32MB)`
			`[Batch] Initialized (threshold=8 MB, min_size=64 KB, bg=on)`
			`[ADAPTIVE] Adaptive sizing initialized (initial_cap=64, min=16, max=2048)`
			`[ACE] ACE disabled (HAKMEM_ACE_ENABLED=0)`
			`[SUPERSLAB_MMAP] #1: class=0 size=2097152 (total SuperSlab mmaps so far)`
			`[HAKMEM] Initialized SuperSlabHead for class 0: 1 initial chunks`
			`[BATCH_CARVE] cls=0 slab=1 used=0 cap=8192 batch=16 base=0x7654b6c10000 bs=8`
			`[SUPERSLAB_MMAP] #2: class=1 size=2097152 (total SuperSlab mmaps so far)`
			`[HAKMEM] Initialized SuperSlabHead for class 1: 1 initial chunks`
			`[SUPERSLAB_MMAP] #3: class=2 size=2097152 (total SuperSlab mmaps so far)`
			`[HAKMEM] Initialized SuperSlabHead for class 2: 1 initial chunks`
			`[SUPERSLAB_MMAP] #4: class=3 size=2097152 (total SuperSlab mmaps so far)`
			`[HAKMEM] Initialized SuperSlabHead for class 3: 1 initial chunks`
			`[SUPERSLAB_MMAP] #5: class=4 size=2097152 (total SuperSlab mmaps so far)`
			`[HAKMEM] Initialized SuperSlabHead for class 4: 1 initial chunks`
			`[SUPERSLAB_MMAP] #6: class=5 size=2097152 (total SuperSlab mmaps so far)`
			`[HAKMEM] Initialized SuperSlabHead for class 5: 1 initial chunks`
			`[SUPERSLAB_MMAP] #7: class=6 size=2097152 (total SuperSlab mmaps so far)`
			`[HAKMEM] Initialized SuperSlabHead for class 6: 1 initial chunks`
			`[SUPERSLAB_MMAP] #8: class=7 size=2097152 (total SuperSlab mmaps so far)`
			`[SUPERSLAB_INIT] class 7 slab 0: usable_size=63488 block_size=1024 capacity=62`
			`[SUPERSLAB_INIT] Expected: 63488 / 1024 = 62 blocks`
			`[HAKMEM] Initialized SuperSlabHead for class 7: 1 initial chunks`
			`[hakmem] TLS cache pre-warmed for 8 classes`
			`[Pool] hak_pool_try_alloc FIRST CALL EVER!`
			`% time seconds usecs/call calls errors syscall`
			`------ ----------- ----------- --------- --------- ----------------`
			`56.02 0.000121 3 38 mmap`
			`39.81 0.000086 7 12 munmap`
			`4.17 0.000009 4 2 madvise`
			`------ ----------- ----------- --------- --------- ----------------`
			`100.00 0.000216 4 52 total`