hakmem/scripts/run_larson_defaults.sh

#!/usr/bin/env bash
set -euo pipefail

# Larson defaults wrapper for HAKMEM Tiny.
# Usage:
#   scripts/run_larson_defaults.sh [tput|pf] [DUR] [THREADS]
# Examples:
#   scripts/run_larson_defaults.sh            # 2s, threads=1,4, tput profile
#   scripts/run_larson_defaults.sh pf 10 4    # 10s, threads=4, low PF profile

MODE=${1:-tput}            # tput (throughput) or pf (lower page-fault/sys)
DUR=${2:-2}
THREADS_CSV=${3:-1,4}

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")"/.. && pwd)"
cd "$ROOT_DIR"

# Ensure binaries
[[ -x ./larson_system ]] || make -s larson_system >/dev/null
[[ -x ./larson_hakmem ]] || make -s larson_hakmem >/dev/null

# Common env for HAKMEM Tiny + Larson
export HAKMEM_LARSON_TINY_ONLY=${HAKMEM_LARSON_TINY_ONLY:-1}
export HAKMEM_LARSON=${HAKMEM_LARSON:-1}
export HAKMEM_WRAP_TINY=${HAKMEM_WRAP_TINY:-1}
export HAKMEM_DISABLE_BATCH=${HAKMEM_DISABLE_BATCH:-1}
export HAKMEM_TINY_META_ALLOC=${HAKMEM_TINY_META_ALLOC:-1}
export HAKMEM_TINY_META_FREE=${HAKMEM_TINY_META_FREE:-1}
export HAKMEM_TINY_USE_SUPERSLAB=${HAKMEM_TINY_USE_SUPERSLAB:-1}
export HAKMEM_TINY_MUST_ADOPT=${HAKMEM_TINY_MUST_ADOPT:-1}
export HAKMEM_TINY_SS_ADOPT=${HAKMEM_TINY_SS_ADOPT:-1}
export HAKMEM_TINY_TRIM_SS=${HAKMEM_TINY_TRIM_SS:-1}

# Publish→mail→adopt pipeline (fast-tier + mailbox) — defaults safe for bench
# These are critical; keep here so we never forget them.
export HAKMEM_TINY_FAST_CAP=${HAKMEM_TINY_FAST_CAP:-64}
export HAKMEM_TINY_FAST_SPARE_PERIOD=${HAKMEM_TINY_FAST_SPARE_PERIOD:-8}
export HAKMEM_TINY_TLS_LIST=${HAKMEM_TINY_TLS_LIST:-1}
# Mailbox slow discovery to avoid missed registrations in short runs
export HAKMEM_TINY_MAILBOX_SLOWDISC=${HAKMEM_TINY_MAILBOX_SLOWDISC:-1}
export HAKMEM_TINY_MAILBOX_SLOWDISC_PERIOD=${HAKMEM_TINY_MAILBOX_SLOWDISC_PERIOD:-256}

# Sukesuke (signal dump) defaults off; counters at exit only to avoid early noise
export HAKMEM_TINY_SUKESUKE=${HAKMEM_TINY_SUKESUKE:-0}
export HAKMEM_TINY_DUMP_ATEXIT_ONLY=${HAKMEM_TINY_DUMP_ATEXIT_ONLY:-1}
export HAKMEM_TINY_COUNTERS_DUMP=${HAKMEM_TINY_COUNTERS_DUMP:-1}

# Profile-specific knobs
if [[ "$MODE" == "tput" ]]; then
  # Throughput-leaning defaults
  export HAKMEM_TINY_SS_FORCE_LG=${HAKMEM_TINY_SS_FORCE_LG:-21}         # 2MB
  export HAKMEM_TINY_PUBLISH_THROTTLE=${HAKMEM_TINY_PUBLISH_THROTTLE:-8}
  export HAKMEM_TINY_DRAIN_THRESHOLD=${HAKMEM_TINY_DRAIN_THRESHOLD:-4}
  # Prefer mmap over adopt for raw tput until publish pipeline is proven
  export HAKMEM_TINY_MUST_ADOPT=${HAKMEM_TINY_MUST_ADOPT:-0}
  # SS cache/precharge ON also for tput（syscall抑制で張り付き解消を狙う）
  export HAKMEM_TINY_SS_CACHE=${HAKMEM_TINY_SS_CACHE:-8}
  export HAKMEM_TINY_SS_PRECHARGE=${HAKMEM_TINY_SS_PRECHARGE:-1}
  export HAKMEM_TINY_TRIM_SS=${HAKMEM_TINY_TRIM_SS:-0}
else
  # Lower page-fault/sys defaults
  export HAKMEM_TINY_SS_FORCE_LG=${HAKMEM_TINY_SS_FORCE_LG:-20}         # 1MB
  export HAKMEM_TINY_PUBLISH_THROTTLE=${HAKMEM_TINY_PUBLISH_THROTTLE:-8}
  export HAKMEM_TINY_DRAIN_THRESHOLD=${HAKMEM_TINY_DRAIN_THRESHOLD:-4}
  # Enable adopt on PF/sys profile to reduce mmap/sys
  export HAKMEM_TINY_MUST_ADOPT=${HAKMEM_TINY_MUST_ADOPT:-1}
  export HAKMEM_TINY_SS_CACHE=${HAKMEM_TINY_SS_CACHE:-4}
  export HAKMEM_TINY_SS_PRECHARGE=${HAKMEM_TINY_SS_PRECHARGE:-1}
fi

echo "[Larson Defaults] mode=$MODE dur=$DUR threads=$THREADS_CSV"
echo "[Larson Defaults] HAKMEM_LARSON_TINY_ONLY=$HAKMEM_LARSON_TINY_ONLY HAKMEM_WRAP_TINY=$HAKMEM_WRAP_TINY"
echo "[Larson Defaults] SS_FORCE_LG=$HAKMEM_TINY_SS_FORCE_LG THROTTLE=$HAKMEM_TINY_PUBLISH_THROTTLE DRAIN=$HAKMEM_TINY_DRAIN_THRESHOLD CACHE=$HAKMEM_TINY_SS_CACHE PRECHARGE=$HAKMEM_TINY_SS_PRECHARGE"
echo "[Larson Defaults] FAST_CAP=$HAKMEM_TINY_FAST_CAP FAST_SPARE_PERIOD=$HAKMEM_TINY_FAST_SPARE_PERIOD TLS_LIST=$HAKMEM_TINY_TLS_LIST"
echo "[Larson Defaults] MAILBOX_SLOWDISC=$HAKMEM_TINY_MAILBOX_SLOWDISC PERIOD=$HAKMEM_TINY_MAILBOX_SLOWDISC_PERIOD"

# Delegate to perf runner (system/mimalloc/hakmem)
DUR=$DUR THREADS=$THREADS_CSV scripts/run_larson_perf.sh