postgres@bingo-Computer:/opt/pgsql/bin$ ./pgbench --help
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
Options to select what to run:
-b, --builtin=NAME[@W] add builtin script NAME weighted at W (default: 1)
(use "-b list" to list available scripts)
-f, --file=FILENAME[@W] add script FILENAME weighted at W (default: 1)
-N, --skip-some-updates skip updates of pgbench_tellers and pgbench_branches
(same as "-b simple-update")
-S, --select-only perform SELECT-only transactions
(same as "-b select-only")
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
-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
-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
-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
--progress-timestamp use Unix epoch timestamps for progress
--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
