SherlockMem

Memory tracer for GenServer

Installation

• Add "use SherlockMem" in each GenServer module like this:

defmodule Slack do
  use GenServer
  use SherlockMem
...
end

• At runtime enable tracing module by runing in iex console:

SherlockMem.enable(Slack)

• For each init callback there will be messages like this:

print_mem_before <pid> <memory_used> "init_before" <initial arguments>
print_mem_after  <pid> <memory_used> "init_after " <final state>

• Library is wrapping standard GenServer callbacks: init, handle_cast, handle_call, handle_info

More details

• default log level is info
• it's using recon to get current process memory usage