OmegaProfiler

 OmegaProfiler shows which addons are slowing down your client. A live, zoomable graph plots each addon's CPU use next to total CPU, FPS and latency, and keeps up to 24 hours of history. It times every addon's load at login, /reload and zone loading screens. It logs lag spikes and names the likely cause: specific addons, garbage collection, a latency jump or the client itself. A Memory tab tracks each addon's memory use and how fast it grows. History survives /reload and relog. Type /omp to open it.