解决多线程dmabuffer竞态问题

scripts/run_pgbench_zvfs.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# 简化版 pgbench 测试脚本：
+# 1) 参数都在本文件顶部配置；
+# 2) 直接连接 benchdb；
+# 3) 执行 pgbench 初始化和压测。
+
+# ---------------------------
+# 固定配置（按需改这里）
+# ---------------------------
+PG_HOST="127.0.0.1"
+PG_PORT="5432"
+PG_DB="benchdb"
+PG_SCALE="10"
+PG_TIME="15"
+PG_CLIENTS="32"
+PG_THREADS="8"
+PG_INIT_JOBS="1"
+PG_INIT_STEPS="dtg"
+PG_SKIP_INIT="0"
+PG_SUPERUSER="postgres"
+USE_LD_PRELOAD="1"
+LD_PRELOAD_PATH="/home/lian/share/zvfs/src/libzvfs.so"
+
+# 可选：优先使用这个目录；为空时自动从 PATH 里找
+PG_BIN_DIR="/usr/lib/postgresql/12/bin"
+
+if [[ ! -x "${PG_BIN_DIR}/pgbench" ]]; then
+  PG_BIN_DIR="$(dirname "$(command -v pgbench 2>/dev/null || true)")"
+fi
+
+if [[ -z "${PG_BIN_DIR}" || ! -x "${PG_BIN_DIR}/pgbench" ]]; then
+  echo "未找到 pgbench，请先安装 PostgreSQL 客户端或修正 PG_BIN_DIR。" >&2
+  exit 1
+fi
+
+run_pg_cmd() {
+  if [[ "${USE_LD_PRELOAD}" == "1" ]]; then
+    sudo -u "${PG_SUPERUSER}" env LD_PRELOAD="${LD_PRELOAD_PATH}" "$@"
+  else
+    sudo -u "${PG_SUPERUSER}" "$@"
+  fi
+}
+
+echo "当前配置："
+echo "  host=${PG_HOST} port=${PG_PORT} db=${PG_DB}"
+echo "  scale=${PG_SCALE} clients=${PG_CLIENTS} threads=${PG_THREADS} time=${PG_TIME}s preload=${USE_LD_PRELOAD}"
+echo "  init_jobs=${PG_INIT_JOBS} init_steps=${PG_INIT_STEPS} skip_init=${PG_SKIP_INIT}"
+echo
+
+if [[ "${PG_SKIP_INIT}" != "1" ]]; then
+  echo "[1/2] pgbench 初始化（-i）"
+  run_pg_cmd "${PG_BIN_DIR}/pgbench" \
+    -h "${PG_HOST}" -p "${PG_PORT}" -i \
+    -s "${PG_SCALE}" -I "${PG_INIT_STEPS}" "${PG_DB}"
+else
+  echo "[1/2] 跳过初始化（PG_SKIP_INIT=1）"
+fi
+
+echo "[2/2] pgbench 压测（-T）"
+run_pg_cmd "${PG_BIN_DIR}/pgbench" \
+  -h "${PG_HOST}" -p "${PG_PORT}" -c "${PG_CLIENTS}" -j "${PG_THREADS}" -T "${PG_TIME}" "${PG_DB}"