Figure 1. Vitis AI Profiler GUI Overview
- A union timeline that shows running status of different compute units in FPGA.
- CPU: Function call stack graph and CPU busy/idle state, all AI Library relevant function calls will be highlighted on the timeline.
- For CPU tasks, different color indicates different thread. On the
screenshot below, there are five different colors that stand for five
- All of these five threads are forked by the Vitis AI Library.
- The first pink one that is in charge of loading and resizing picture from disk to memory.
- The other four threads that are in charge of
processing AI tasks, including per-processing post-processing and
scheduling tasks for DPUs.Figure 2. Vitis AI Profiler CPU Timeline
- DPUs every running task will be show on the timeline.
- If you move the mouse over the block, it highlights and shows the runtime of this task.
- For DPU tasks, the utilization of DPUs (in time dimension) could be see
very clearly from this graph.Figure 3. Vitis AI Profiler DPU Timeline
- Information about hardware on running.
- Memory Bandwidth: real-time AXI port traffic (only available for edge
- You can see details about the traffic(including read and write) of each AXI port.
- Memory Bandwidth: real-time AXI port traffic (only available for edge devices now).
- Real-time throughput for AI inference throughput (FPS).
- More details will be shown while mouse moving over.Figure 4. Vitis AI Profiler Throughput and AXI Traffic Monitor
- More details will be shown while mouse moving over.
- At the right half panel of the profiler window, there are two tabs which can be
- Hardware information can be got from the Hardware Information tab.
- A series of key performance indicator of CPUs and DPUs will be got from the
Overview tab.Figure 5. Vitis AI Profiler Information Table