57 lines
1.8 KiB
Bash
57 lines
1.8 KiB
Bash
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#!/usr/bin/env bash
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set -euo pipefail
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# perf-stat triad (HAKMEM/System/mimalloc) for bench_tiny_hot at a single size/batch/cycles
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# Collects cycles/instructions/branches/branch-misses/L1-dcache-load-misses (CSV via perf -x ,)
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# Usage: scripts/run_perf_hot_triad.sh [size] [batch] [cycles] [reps]
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# size : bytes (default 32)
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# batch : batch size (default 100)
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# cycles: loop cycles per op (default 50000)
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# reps : perf repetitions (default 3)
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ROOT_DIR=$(cd "$(dirname "$0")/.." && pwd)
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cd "$ROOT_DIR"
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size=${1:-32}
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batch=${2:-100}
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cycles=${3:-50000}
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reps=${4:-3}
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echo "[build] benches (fast + mi)"
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make -s bench_fast bench_tiny_hot_mi >/dev/null
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# Ensure LD_LIBRARY_PATH is defined (set -u safety)
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export LD_LIBRARY_PATH="${LD_LIBRARY_PATH:-}"
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MI_LIBDIR="$ROOT_DIR/mimalloc-bench/extern/mi/out/release"
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TS=$(date +%Y%m%d_%H%M%S)
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OUTDIR="bench_results/perf_hot_triad_${TS}"
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mkdir -p "$OUTDIR"
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echo "[info] size=$size batch=$batch cycles=$cycles reps=$reps"
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echo "[info] results → $OUTDIR"
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run_perf() {
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local alloc="$1"; shift
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local bin="$1"; shift
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local tag="$alloc"_s${size}_b${batch}_c${cycles}
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local log="$OUTDIR/${tag}.perf.csv"
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echo "[perf] $tag"
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if [[ "$alloc" == "mimalloc" ]]; then
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LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$MI_LIBDIR" \
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perf stat -x , -r "$reps" -e cycles,instructions,branches,branch-misses,L1-dcache-load-misses \
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"$bin" "$size" "$batch" "$cycles" 1>/dev/null 2>"$log" || true
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else
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perf stat -x , -r "$reps" -e cycles,instructions,branches,branch-misses,L1-dcache-load-misses \
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"$bin" "$size" "$batch" "$cycles" 1>/dev/null 2>"$log" || true
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fi
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}
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run_perf hakmem ./bench_tiny_hot_hakmem
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run_perf system ./bench_tiny_hot_system
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run_perf mimalloc ./bench_tiny_hot_mi
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echo "[done] perf CSVs under: $OUTDIR"
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ls -1 "$OUTDIR" | sed -n '1,20p'
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