cleanup UOp tracing [pr] (#12657)

This commit is contained in:
qazal
2025-10-14 14:50:59 +08:00
committed by GitHub
parent b9eb5b5d49
commit 8ecaf839e2
+7 -9
View File
@@ -845,17 +845,15 @@ class PatternMatcher:
if (ret:=match(uop, ctx)) is not None and ret is not uop: return ret
return None
# *** non-blocking UOp tracker ***
ucount = itertools.count()
uop_fields:dict[int, tuple] = {}
def track_uop(u:UOp): return u.trace_num
# *** tracking pattern matcher ***
TRACK_MATCH_STATS = ContextVar("TRACK_MATCH_STATS", 2 if VIZ else 0)
match_stats:dict[UPat, list[int|float]] = dict()
# TRACK_MATCH_STATS>=3 saves the UOp fields
ucount = itertools.count()
uop_fields:dict[int, tuple] = {}
@dataclass(frozen=True)
class TrackedGraphRewrite:
loc:tuple[str, int] # location that called graph_rewrite
@@ -912,7 +910,7 @@ def track_matches(func):
loc = ((frm:=sys._getframe(1)).f_code.co_filename, frm.f_lineno)
depth = len(active_rewrites)
if not tracked_ctxs: add_trace_group(TracingKey(f"default {func.__name__}"))
tracked_ctxs[-1].append(ctx:=TrackedGraphRewrite(loc, track_uop(args[0]), [], kwargs.get("name", None), depth, kwargs.get("bottom_up", False)))
tracked_ctxs[-1].append(ctx:=TrackedGraphRewrite(loc, args[0].trace_num, [], kwargs.get("name", None), depth, kwargs.get("bottom_up", False)))
active_rewrites.append(ctx)
with cpu_profile(kwargs.get("name", "<unnamed>"), "TINY", display=tracking):
ret = func(*args, **kwargs)
@@ -934,14 +932,14 @@ class TrackedPatternMatcher(PatternMatcher):
try: ret = match(uop, ctx)
except Exception:
if TRACK_MATCH_STATS >= 2 and active_rewrites:
active_rewrites[-1].matches.append((track_uop(uop), track_uop(UOp(Ops.REWRITE_ERROR,src=uop.src,arg=str(sys.exc_info()[1]))),p.location,0))
active_rewrites[-1].matches.append((uop.trace_num, UOp(Ops.REWRITE_ERROR,src=uop.src,arg=str(sys.exc_info()[1])).trace_num,p.location,0))
raise
if ret is not None and ret is not uop:
match_stats[p][0] += 1
match_stats[p][3] += (et:=time.perf_counter()-st)
if TRACK_MATCH_STATS >= 3: print(f"{et*1e6:7.2f} us -- ", printable(p.location))
if TRACK_MATCH_STATS >= 2 and isinstance(ret, UOp) and active_rewrites:
active_rewrites[-1].matches.append((track_uop(uop), track_uop(ret), p.location, et))
active_rewrites[-1].matches.append((uop.trace_num, ret.trace_num, p.location, et))
return ret
match_stats[p][2] += time.perf_counter()-st
return None