custom_gen.erl

module(custom_gen).

-export([key/1,
         value/1,
         key_from_arg/2,
         value_from_arg/2
        ]).

key(_Id) ->
    fun() -> <<"custom_key">> end.

value(_Id) ->
    fun() -> <<"custom_value">> end.

key_from_arg(_Id, Arg) ->
    fun() -> Arg end.

value_from_arg(_Id, Arg) ->
    fun() -> Arg end.

gistfile1.erl

{mode, max}.
{duration, 10}.
{concurrent, 1}.
{driver, basho_bench_driver_riakc_pb}.
{riakc_pb_ips, [{127,0,0,1}]}.
{riakc_pb_replies, 1}.
{operations, [{get, 1}, {update, 1}]}.
{source_dir, "src"}.

%% Example using a custom function for key and value generation
{key_generator, {function, custom_gen, key, []}}.
{value_generator, {function, custom_gen, value, []}}.

%% Example using a custom function with args
%% {key_generator, {function, custom_gen, key_from_arg, [<<"key_arg">>]}}.
%% {value_generator, {function, custom_gen, value_from_arg, [<<"value_arg">>]}}.