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de77c89cf6
version: sunnypilot v2026.002.000 (staging) date: 2026-07-21T07:44:02 master commit: 2c334ede443d7391d27575af8c854a095ba702a8
15 lines
440 B
Markdown
15 lines
440 B
Markdown
# SQTT Profiling
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## Getting SQ Thread Trace
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`VIZ=2` to enable SQTT profiling.
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`SQTT_ITRACE_SE_MASK=X` to select shader engines for instruction tracing, -1 = all, 0 = disabled, >0 = SE bitmask, default 0b11.
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`SQTT_BUFFER_SIZE=X` to change size of SQTT buffer (per shader engine, 6 SEs on 7900xtx) in megabytes, default 256.
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## Viewing the traces
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- Web UI: `tinygrad/viz/serve.py`
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- Command line: `python -m tinygrad.renderer.amd.sqtt`
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