toolbox

Minimal erlang system metrics collection

Examples

• Measure an mfa:

toolbox:measure(M, F, A)

• Measure an anonymous function:

toolbox:measure(fun() -> 3 + 2 end)

• Trace a process to get periodic updates

toolbox:trace(Name, Pid)

• Trace a registered process to get periodic updates

toolbox:trace(RegisteredName)

• Stop tracing a process

toolbox:untrace(Name)

Configuration

• Metrics function (metrics_fun): Module and function that represents a 2 arity function taking the name and relevant statistics in the form of a map: -spec log(atom(), map()) -> ok.

• Metrics to collect (metrics): A list of metrics to collect, valid options include reductions and message_queue_len, or any numerical statistic from process_info

• Enable node statistics (enable_node_stats): A boolean that declares whether to send node statistics in the form of #{absolutes => ListOfAbsoluteStatistics, incrementals => ListOfStatisticsThatMakeSenseOverTime}