Double prefetch without uniqueness validations profile

[#56005352]

39.03 seconds total compared to 67.94 seconds total for a 42.55%
reduction in total time.
ActiveRecord::Validations::UniquenessValdiation#validation_each has
completely disappeared from the call graph.  11.94 seconds compared to
34.12 seconds for a 65.01% reduction for PG::Connection#async_exec.
10.08 seconds compared to 18.38 seconds for a 45.16% reduction for
Metasploit::Framework::Module::Ancestor::Load#metasploit_module.
Double prefetch with batched real_path query

[#56005352]

37.17 seconds total compared to 39.03 seconds for a 4.77% reduction in
total time.  9.83 seconds compared to 11.94 seconds for a 17.67%
reduction in PG::Connection#async_exec time.  However,
Metasploit::Framework::Module::Ancestor::Load#metasploit_module
increased to 11.20 seconds from 10.08 seconds.