This package contains the code for the Neutron Profiler. This package requires Neutron to run. It will make neutron processes(neutron API and RPC workers, l2 and l3 agents) to listen on unix domain sockets for client's(rally, browbeat) requests to start and stop neutron processes profiling(i.e capturing function call trace) during their tests. This code is enabled in neutron server as service plugin and in agents(l2 and l3) as agent exentsions. This is not enabled for dhcp agent as agent extensions are not enabled in dhcp agent.
Changes needed in neutron.conf(till devstack plugin enabled to do these changes):
# This will enable Trace profiler to regsiter for process 'AFTER_INIT' event.
# When this event is triggered(for each API/RPC worker), it will enable the worker
# process to create new unix socket(for profiler start and stop requests).
[DEFAULT]
service_plugins = neutron_trace_profiler.profiler.Profiler
[trace_profiler]
enabled = True
sock_path = /opt/stack/data/neutron/trace_profiler_sock
trace_path = /opt/stack/data/neutron/trace_profiler_files
trace_format = pstat
# This will enable trace profiler as agent extensions(for l2 and l3) and
# create a new trace profiler unix socket for the agent process.
[agent]
extensions = trace_profiler
TODO: Remove author names and convert it into openstack format.