Files
danswer/backend/onyx/background/indexing/tracer.py
2024-12-13 09:56:10 -08:00

78 lines
2.4 KiB
Python

import tracemalloc
from onyx.utils.logger import setup_logger
logger = setup_logger()
DANSWER_TRACEMALLOC_FRAMES = 10
class OnyxTracer:
def __init__(self) -> None:
self.snapshot_first: tracemalloc.Snapshot | None = None
self.snapshot_prev: tracemalloc.Snapshot | None = None
self.snapshot: tracemalloc.Snapshot | None = None
def start(self) -> None:
tracemalloc.start(DANSWER_TRACEMALLOC_FRAMES)
def stop(self) -> None:
tracemalloc.stop()
def snap(self) -> None:
snapshot = tracemalloc.take_snapshot()
# Filter out irrelevant frames (e.g., from tracemalloc itself or importlib)
snapshot = snapshot.filter_traces(
(
tracemalloc.Filter(False, tracemalloc.__file__), # Exclude tracemalloc
tracemalloc.Filter(
False, "<frozen importlib._bootstrap>"
), # Exclude importlib
tracemalloc.Filter(
False, "<frozen importlib._bootstrap_external>"
), # Exclude external importlib
)
)
if not self.snapshot_first:
self.snapshot_first = snapshot
if self.snapshot:
self.snapshot_prev = self.snapshot
self.snapshot = snapshot
def log_snapshot(self, numEntries: int) -> None:
if not self.snapshot:
return
stats = self.snapshot.statistics("traceback")
for s in stats[:numEntries]:
logger.debug(f"Tracer snap: {s}")
for line in s.traceback:
logger.debug(f"* {line}")
@staticmethod
def log_diff(
snap_current: tracemalloc.Snapshot,
snap_previous: tracemalloc.Snapshot,
numEntries: int,
) -> None:
stats = snap_current.compare_to(snap_previous, "traceback")
for s in stats[:numEntries]:
logger.debug(f"Tracer diff: {s}")
for line in s.traceback.format():
logger.debug(f"* {line}")
def log_previous_diff(self, numEntries: int) -> None:
if not self.snapshot or not self.snapshot_prev:
return
OnyxTracer.log_diff(self.snapshot, self.snapshot_prev, numEntries)
def log_first_diff(self, numEntries: int) -> None:
if not self.snapshot or not self.snapshot_first:
return
OnyxTracer.log_diff(self.snapshot, self.snapshot_first, numEntries)