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>
63 lines
1.8 KiB
Bash
63 lines
1.8 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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# Measure steady-state RSS for Tiny sizes by maintaining a live set
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# and churning short-lived allocations. Reports peak and end RSS.
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#
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# Usage: scripts/measure_rss_tiny.sh <size> <live_count> <iters>
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ROOT_DIR=$(cd "$(dirname "$0")/.." && pwd)
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cd "$ROOT_DIR"
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if [[ $# -lt 3 ]]; then
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echo "usage: $0 <size> <live_count> <iters>" >&2
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exit 1
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fi
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size=$1; live=$2; iters=$3
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cat > "$ROOT_DIR/.tmp_rss_bench.c" <<'EOF'
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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static size_t get_rss_kb(void) {
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FILE* f = fopen("/proc/self/statm","r");
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if (!f) return 0; unsigned long size, res; fscanf(f, "%lu %lu", &size, &res); fclose(f);
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long ps = sysconf(_SC_PAGESIZE); return (size_t)((res * ps) / 1024);
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}
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int main(int argc, char** argv) {
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size_t size = (size_t)strtoull(argv[1],NULL,10);
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int live = atoi(argv[2]);
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int iters = atoi(argv[3]);
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void** L = (void**)malloc(sizeof(void*)*(size_t)live);
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for (int i=0;i<live;i++) L[i] = malloc(size);
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size_t peak=0;
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for (int it=0; it<iters; it++) {
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for (int i=0;i<live;i+=2) { free(L[i]); L[i]=malloc(size); }
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size_t rss = get_rss_kb(); if (rss>peak) peak=rss;
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}
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size_t end_rss = get_rss_kb();
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printf("peak_rss_kb=%zu end_rss_kb=%zu\n", peak, end_rss);
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for (int i=0;i<live;i++) free(L[i]); free(L); return 0;
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}
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EOF
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gcc -O3 -march=native -mtune=native .tmp_rss_bench.c -o .tmp_rss_bench
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echo "[info] Building shared lib (for LD_PRELOAD HAKMEM case)"
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make -s pgo-build-shared >/dev/null || true
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echo "[case] HAKMEM (LD_PRELOAD)"
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out_h=$(HAKMEM_LD_SAFE=1 LD_PRELOAD="$ROOT_DIR/libhakmem.so" ./.tmp_rss_bench "$size" "$live" "$iters")
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echo "$out_h"
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echo "[case] System"
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out_s=$(./.tmp_rss_bench "$size" "$live" "$iters")
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echo "$out_s"
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rm -f .tmp_rss_bench .tmp_rss_bench.c
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