52386401b3
Major Features: - Debug counter infrastructure for Refill Stage tracking - Free Pipeline counters (ss_local, ss_remote, tls_sll) - Diagnostic counters for early return analysis - Unified larson.sh benchmark runner with profiles - Phase 6-3 regression analysis documentation Bug Fixes: - Fix SuperSlab disabled by default (HAKMEM_TINY_USE_SUPERSLAB) - Fix profile variable naming consistency - Add .gitignore patterns for large files Performance: - Phase 6-3: 4.79 M ops/s (has OOM risk) - With SuperSlab: 3.13 M ops/s (+19% improvement) This is a clean repository without large log files. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
70 lines
3.2 KiB
Diff
70 lines
3.2 KiB
Diff
--- core/hakmem.c.orig
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+++ core/hakmem.c
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@@ -786,6 +786,13 @@
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return;
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}
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+ // DEBUG: Free path statistics
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+ static __thread uint64_t mid_mt_local_free = 0;
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+ static __thread uint64_t mid_mt_registry_free = 0;
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+ static __thread uint64_t tiny_slab_free = 0;
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+ static __thread uint64_t other_free = 0;
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+ static __thread uint64_t total_free = 0;
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+
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// OPTIMIZATION: Check Mid Range MT FIRST (for bench_mid_large_mt workload)
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// This benchmark is 100% Mid MT allocations, so check Mid MT before Tiny
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// to avoid the 1.1% overhead of hak_tiny_owner_slab() lookup
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@@ -807,6 +814,15 @@
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seg->free_list = ptr; // Update head
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seg->used_count--;
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+ // DEBUG stats
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+ mid_mt_local_free++;
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+ total_free++;
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+ if (total_free % 100000 == 0) {
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+ fprintf(stderr, "[FREE STATS] Total=%llu MidLocal=%llu (%.1f%%) MidRegistry=%llu (%.1f%%) Tiny=%llu (%.1f%%) Other=%llu (%.1f%%)\n",
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+ total_free,
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+ mid_mt_local_free, 100.0 * mid_mt_local_free / total_free,
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+ mid_mt_registry_free, 100.0 * mid_mt_registry_free / total_free,
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+ tiny_slab_free, 100.0 * tiny_slab_free / total_free,
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+ other_free, 100.0 * other_free / total_free);
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+ }
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#if HAKMEM_DEBUG_TIMING
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HKM_TIME_END(HKM_CAT_HAK_FREE, t0);
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#endif
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@@ -819,6 +835,15 @@
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if (mid_registry_lookup(ptr, &mid_block_size, &mid_class_idx)) {
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// Found in Mid MT registry - free it
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mid_mt_free(ptr, mid_block_size);
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+ // DEBUG stats
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+ mid_mt_registry_free++;
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+ total_free++;
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+ if (total_free % 100000 == 0) {
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+ fprintf(stderr, "[FREE STATS] Total=%llu MidLocal=%llu (%.1f%%) MidRegistry=%llu (%.1f%%) Tiny=%llu (%.1f%%) Other=%llu (%.1f%%)\n",
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+ total_free,
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+ mid_mt_local_free, 100.0 * mid_mt_local_free / total_free,
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+ mid_mt_registry_free, 100.0 * mid_mt_registry_free / total_free,
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+ tiny_slab_free, 100.0 * tiny_slab_free / total_free,
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+ other_free, 100.0 * other_free / total_free);
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+ }
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#if HAKMEM_DEBUG_TIMING
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HKM_TIME_END(HKM_CAT_HAK_FREE, t0);
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#endif
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@@ -838,6 +863,15 @@
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TinySlab* tiny_slab = hak_tiny_owner_slab(ptr);
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if (tiny_slab) {
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hak_tiny_free(ptr);
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+ // DEBUG stats
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+ tiny_slab_free++;
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+ total_free++;
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+ if (total_free % 100000 == 0) {
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+ fprintf(stderr, "[FREE STATS] Total=%llu MidLocal=%llu (%.1f%%) MidRegistry=%llu (%.1f%%) Tiny=%llu (%.1f%%) Other=%llu (%.1f%%)\n",
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+ total_free,
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+ mid_mt_local_free, 100.0 * mid_mt_local_free / total_free,
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+ mid_mt_registry_free, 100.0 * mid_mt_registry_free / total_free,
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+ tiny_slab_free, 100.0 * tiny_slab_free / total_free,
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+ other_free, 100.0 * other_free / total_free);
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+ }
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#if HAKMEM_DEBUG_TIMING
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HKM_TIME_END(HKM_CAT_HAK_FREE, t0);
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#endif
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