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pgbench --help

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pgbench --help (return code: 0)

pgbench is a benchmarking tool for PostgreSQL.

Usage:
  pgbench [OPTION]... [DBNAME]

Initialization options:
  -i, --initialize         invokes initialization mode
  -F, --fillfactor=NUM     set fill factor
  -n, --no-vacuum          do not run VACUUM after initialization
  -q, --quiet              quiet logging (one message each 5 seconds)
  -s, --scale=NUM          scaling factor
  --foreign-keys           create foreign key constraints between tables
  --index-tablespace=TABLESPACE
                           create indexes in the specified tablespace
  --tablespace=TABLESPACE  create tables in the specified tablespace
  --unlogged-tables        create tables as unlogged tables

Benchmarking options:
  -c, --client=NUM         number of concurrent database clients (default: 1)
  -C, --connect            establish new connection for each transaction
  -D, --define=VARNAME=VALUE
                           define variable for use by custom script
  -f, --file=FILENAME      read transaction script from FILENAME
  -j, --jobs=NUM           number of threads (default: 1)
  -l, --log                write transaction times to log file
  -L, --latency-limit=NUM  count transactions lasting more than NUM ms as late
  -M, --protocol=simple|extended|prepared
                           protocol for submitting queries (default: simple)
  -n, --no-vacuum          do not run VACUUM before tests
  -N, --skip-some-updates  skip updates of pgbench_tellers and pgbench_branches
  -P, --progress=NUM       show thread progress report every NUM seconds
  -r, --report-latencies   report average latency per command
  -R, --rate=NUM           target rate in transactions per second
  -s, --scale=NUM          report this scale factor in output
  -S, --select-only        perform SELECT-only transactions
  -t, --transactions=NUM   number of transactions each client runs (default: 10)
  -T, --time=NUM           duration of benchmark test in seconds
  -v, --vacuum-all         vacuum all four standard tables before tests
  --aggregate-interval=NUM aggregate data over NUM seconds
  --sampling-rate=NUM      fraction of transactions to log (e.g. 0.01 for 1%)

Common options:
  -d, --debug              print debugging output
  -h, --host=HOSTNAME      database server host or socket directory
  -p, --port=PORT          database server port number
  -U, --username=USERNAME  connect as specified database user
  -V, --version            output version information, then exit
  -?, --help               show this help, then exit

Report bugs to <pgsql-bugs@postgresql.org>.

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