taler-exchange-benchmark(1) ########################### .. only:: html Name ==== **taler-exchange-benchmark** - measure exchange performance Synopsis ======== **taler-exchange-benchmark** [**-c** *CONFIG_FILENAME* | **--config=**\ ‌\ *CONFIG_FILENAME*] [**-F** | **--reserves-first**] [**-f** | **--fakebank**] [**-h** | **--help**] [**-K** | **--linger**] [**-L** *LOGLEVEL* | **--log-level=**\ ‌\ *LOGLEVEL*] [**-l** *FILENAME* | **--logfile=**\ ‌\ *FILENAME*] [**-m** *MODE* | **--mode=**\ \ *MODE*] [**-n** *HOWMANY_COINS* | **--coins-number=**\ ‌\ *HOWMANY_COINS*] [**-p** *NPROCS* | **--parallelism=**\ \ *NPROCS*] [**-R** *RATE* | **--refresh-rate=**\ \ *RATE*] [**-r** *N* | **--reserves=**\ \ *N*] [**-v** | **--version**] Description =========== **taler-exchange-benchmark** is a command-line tool to measure the time spent to serve withdrawals/deposits/refreshes. It usually needs a dedicate configuration file where all the services - the exchange and the (fake)bank - listen to URLs not subject to any reverse proxy, as say Nginx. Moreover, the benchmark runs on a “volatile” database, that means that table are always erased during a single benchmark run. **-c** *CONFIG_FILENAME* \| **--config=**\ ‌\ *CONFIG_FILENAME* (Mandatory) Use CONFIG_FILENAME. **-F** \| **--reserves-first** Create all reserves first, before starting normal operations. **-f** \| **--fakebank** Launch a fakebank instead of the Python bank. Only meaningful if the mode is to launch more than just a client. Note that using the fakebank will cause the benchmark application to reset all databases as the fakebank is stateless and thus previous database state would inherently cause trouble. **-h** \| **--help** Prints a compiled-in help text. **-K** \| **--linger** Linger around until keypress after the benchmark is done. **-L** *LOGLEVEL* \| **--log-level=**\ ‌\ *LOGLEVEL* Specifies the log level to use. Accepted values are: ``DEBUG``, ``INFO``, ``WARNING``, ``ERROR``. **-l** *FILENAME* \| **--logfile=**\ ‌\ *FILENAME* Send logging output to *FILENAME*. **-m** *MODE* \| **--mode=**\ \ *MODE* Mode of operation. Accepted values are: ``exchange``, ``clients``, ``both``. **-n** *HOWMANY_COINS* \| **--coins-number=**\ ‌\ *HOWMANY_COINS* Defaults to 1. Specifies how many coins this benchmark should withdraw and spend. After being spent, each coin will be refreshed with a probability RATE (see option ``--refresh-rate``). **-p** *NPROCS* \| **--parallelism=**\ \ *NPROCS* Run with *NPROCS* client processes. **-R** *RATE* \| **--refresh-rate=**\ \ *RATE* Defaults to 10. Probability of refresh per coin (0-100). **-r** *N* \| **--reserves=**\ \ *N* Create *N* reserves per client. **-v** \| **--version** Print version information. See Also ======== taler-exchange-dbinit(1), taler-exchange-offline(1), taler-merchant-benchmark(1), taler-exchange-httpd(1), taler.conf(5) Bugs ==== Report bugs by using https://bugs.taler.net/ or by sending electronic mail to .