zvfs: hook db_bench thread 1 complete

rocksdb.md

@@ -3,7 +3,16 @@ sudo apt install -y build-essential cmake git \
     libgflags-dev libsnappy-dev zlib1g-dev libbz2-dev \
     liblz4-dev libzstd-dev librocksdb-dev
 
+mkdir -p ~/env/rocksdb-test
+cd ~/env/rocksdb-test
+cp ~/env/rocksdb/db_bench .
 
-
-
+./db_bench \
+  --benchmarks=fillseq \
+  --num=20000000 \
+  --value_size=400 \
+  --compression_type=none \
+  --statistics \
+  --stats_interval_seconds=5 \
+  --threads=8
 ```