Graphics Event Profiler

Graphics Event Profiler(gep) is mainly for gpu performance tuning, which includes two parts: kernel patches and helper scripts.

Presentation

https://drive.google.com/drive/folders/1mnpNg4Qya9cgTqE-dUvNvc1ikxmw_UaD

Sample

Please browse the sample to check whether the tool meets your requirement.

1. Open sample.zip through chrome://tracing.
2. Navigate through keyboard and mouse

• w/s: Zoom in/out
• a/d: Pan left/right

Kernel Patches

Please apply the kernel patches at kernel-patches folder

Prerequisites for scripts

1. Python 3

• On Ubuntu, run this command

sudo apt install python3

2. Python pandas library

• On Ubuntu, run this command

sudo pip3 install pandas

Quick Start

1. capture the ftrace on the target system.

• enable ftrace through enable-trace.sh
• run test case for a while
• copy /sys/kernel/debug/tracing/trace to your local folder

2. parse the captured ftrace and generate trace.zip.

• gep.py ftrace

3. open trace.zip through chrome://tracing.

Note

gep.py output explanation:

1. Engine Utilitzation

• Total batch buffer execution time vs total elapsed time.

2. BB Timing

• Batch buffer timing summary for each engine and context.