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Original file line number Diff line number Diff line change
Expand Up @@ -246,14 +246,16 @@ def _record_logical_metrics(
custom_prefix: str = '',
):
"""Records logical bytes, throughput, and duration to JAX monitoring."""
logical_throughput = logical_bytes / duration if duration > 0 else 0
logical_throughput = logical_bytes / duration if duration > 0 else None

logging.info(
'[process=%d] %s throughput: %s/s (total gbytes: %s) (time elapsed: %s s)'
' (per-host)%s',
multihost.process_index(),
f'/jax/orbax/{direction.value}/worker/io/requested',
humanize.naturalsize(logical_throughput, binary=True, format='%.3f'),
humanize.naturalsize(logical_throughput, binary=True, format='%.3f')
if logical_throughput is not None
else 'N/A',
humanize.naturalsize(logical_bytes, binary=True),
duration,
f' (prefix: {custom_prefix})' if custom_prefix else '',
Expand All @@ -272,12 +274,14 @@ def _record_logical_metrics(
storage_type=storage_type,
custom_prefix=custom_prefix,
)
jax.monitoring.record_scalar(
f'/jax/orbax/{direction.value}/worker/io/requested/throughput/gbytes_per_sec',
logical_throughput / (1024**3),
storage_type=storage_type,
custom_prefix=custom_prefix,
)

if logical_throughput is not None:
jax.monitoring.record_scalar(
f'/jax/orbax/{direction.value}/worker/io/requested/throughput/gbytes_per_sec',
logical_throughput / (1024**3),
storage_type=storage_type,
custom_prefix=custom_prefix,
)


def _record_compression_metrics(
Expand All @@ -289,20 +293,20 @@ def _record_compression_metrics(
metadatas: Sequence[ts_utils.ArrayMetadata] | None = None,
) -> None:
"""Logs and records compression ratio and metrics."""
if logical_bytes <= 0:
if logical_bytes <= 0 or raw_bytes <= 0:
return
ratio = float(raw_bytes) / logical_bytes
ratio = float(logical_bytes) / raw_bytes
algo_str = 'none'
level_str = 'None'
if metadatas is not None:
algo_str, level_str = ts_utils.resolve_compression_settings(metadatas)
logging.info(
'[process=%d] %s ratio (raw/logical): %.3f (%s / %s), algo=%s, level=%s',
'[process=%d] %s ratio (logical/raw): %.3f (%s / %s), algo=%s, level=%s',
multihost.process_index(),
direction.value.capitalize(),
ratio,
humanize.naturalsize(raw_bytes, binary=True),
humanize.naturalsize(logical_bytes, binary=True),
humanize.naturalsize(raw_bytes, binary=True),
algo_str,
level_str,
)
Expand All @@ -314,15 +318,6 @@ def _record_compression_metrics(
compression_algorithm=algo_str,
compression_level=level_str,
)
if direction == types.IoDirection.WRITE:
jax.monitoring.record_scalar(
'/jax/orbax/write/worker/io/compressed_gbytes',
raw_bytes / (1024**3),
storage_type=storage_type,
custom_prefix=custom_prefix,
compression_algorithm=algo_str,
compression_level=level_str,
)


def _record_raw_metrics(
Expand All @@ -343,29 +338,41 @@ def _record_raw_metrics(
if raw_bytes <= 0:
return

raw_throughput = raw_bytes / duration if duration > 0 else 0
raw_throughput = raw_bytes / duration if duration > 0 else None
logging.info(
'[process=%d] Raw %s throughput: %s/s (total gbytes: %s) (time elapsed:'
' %s s) (per-host)%s',
multihost.process_index(),
f'/jax/orbax/{direction.value}/worker/io/raw',
humanize.naturalsize(raw_throughput, binary=True, format='%.3f'),
humanize.naturalsize(raw_throughput, binary=True, format='%.3f')
if raw_throughput is not None
else 'N/A',
humanize.naturalsize(raw_bytes, binary=True),
duration,
f' (prefix: {custom_prefix})' if custom_prefix else '',
)
algo_str = 'none'
level_str = 'None'
if metadatas is not None:
algo_str, level_str = ts_utils.resolve_compression_settings(metadatas)
# raw/gbytes records the actual physical raw bytes transferred to/from the
# storage backend, including compression (e.g. zstd) when enabled or
# uncompressed chunk bytes when disabled.
jax.monitoring.record_scalar(
f'/jax/orbax/{direction.value}/worker/io/raw/gbytes',
raw_bytes / (1024**3),
storage_type=storage_type,
custom_prefix=custom_prefix,
compression_algorithm=algo_str,
compression_level=level_str,
)
jax.monitoring.record_scalar(
f'/jax/orbax/{direction.value}/worker/io/raw/throughput/gbytes_per_sec',
raw_throughput / (1024**3),
storage_type=storage_type,
custom_prefix=custom_prefix,
)
if raw_throughput is not None:
jax.monitoring.record_scalar(
f'/jax/orbax/{direction.value}/worker/io/raw/throughput/gbytes_per_sec',
raw_throughput / (1024**3),
storage_type=storage_type,
custom_prefix=custom_prefix,
)

_record_compression_metrics(
direction,
Expand Down
125 changes: 125 additions & 0 deletions checkpoint/orbax/checkpoint/_src/serialization/type_handlers_test.py
Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
# limitations under the License.

import asyncio
import collections
import dataclasses
import threading
import tracemalloc
Expand Down Expand Up @@ -1418,5 +1419,129 @@ def test_replace_updates_multiple_fields(self):
self.assertEqual(info.parent_dir, path)


class RecordCompressionMetricsTest(parameterized.TestCase):

def test_record_compression_metrics_calculation(self):
recorded_scalars = {}

def _mock_record_scalar(name: str, value: Any, *_args, **_kwargs):
recorded_scalars[name] = value

with mock.patch(
'jax.monitoring.record_scalar', side_effect=_mock_record_scalar
):
# Canonical ratio: logical / raw = 200 / 100 = 2.0
jax_array_handlers._record_compression_metrics(
direction=types.IoDirection.WRITE,
logical_bytes=200,
raw_bytes=100,
storage_type='gcs',
)
self.assertEqual(
recorded_scalars['/jax/orbax/write/worker/io/compression_ratio'], 2.0
)

# Read direction canonical ratio: 300 / 150 = 2.0
recorded_scalars.clear()
jax_array_handlers._record_compression_metrics(
direction=types.IoDirection.READ,
logical_bytes=300,
raw_bytes=150,
storage_type='gcs',
)
self.assertEqual(
recorded_scalars['/jax/orbax/read/worker/io/compression_ratio'], 2.0
)

# Zero or negative inputs should not record
recorded_scalars.clear()
jax_array_handlers._record_compression_metrics(
direction=types.IoDirection.WRITE,
logical_bytes=0,
raw_bytes=100,
storage_type='gcs',
)
self.assertNotIn(
'/jax/orbax/write/worker/io/compression_ratio', recorded_scalars
)

recorded_scalars.clear()
jax_array_handlers._record_compression_metrics(
direction=types.IoDirection.WRITE,
logical_bytes=100,
raw_bytes=0,
storage_type='gcs',
)
self.assertNotIn(
'/jax/orbax/write/worker/io/compression_ratio', recorded_scalars
)

# Ensure write/worker/io/compressed_gbytes is never recorded
recorded_scalars.clear()
jax_array_handlers._record_compression_metrics(
direction=types.IoDirection.WRITE,
logical_bytes=200,
raw_bytes=100,
storage_type='gcs',
)
self.assertNotIn(
'/jax/orbax/write/worker/io/compressed_gbytes', recorded_scalars
)

def test_record_raw_metrics_records_compression_tags(self):
recorded_scalars = {}
recorded_kwargs = collections.defaultdict(list)

def _mock_record_scalar(name: str, value: Any, *_args, **kwargs):
recorded_scalars[name] = value
recorded_kwargs[name].append(kwargs)

with mock.patch(
'jax.monitoring.record_scalar', side_effect=_mock_record_scalar
), mock.patch.object(
jax_array_handlers.ts_utils,
'get_tensorstore_raw_bytes',
return_value=1024**3,
):
# Write direction
jax_array_handlers._record_raw_metrics(
direction=types.IoDirection.WRITE,
logical_bytes=2 * (1024**3),
duration=1.0,
storage_type='gcs',
initial_raw_bytes=0,
)
self.assertEqual(
recorded_scalars['/jax/orbax/write/worker/io/raw/gbytes'], 1.0
)
write_raw_kwargs = recorded_kwargs[
'/jax/orbax/write/worker/io/raw/gbytes'
][0]
self.assertEqual(write_raw_kwargs.get('compression_algorithm'), 'none')
self.assertEqual(write_raw_kwargs.get('compression_level'), 'None')
self.assertNotIn(
'/jax/orbax/write/worker/io/compressed_gbytes', recorded_scalars
)

# Read direction
recorded_scalars.clear()
recorded_kwargs.clear()
jax_array_handlers._record_raw_metrics(
direction=types.IoDirection.READ,
logical_bytes=2 * (1024**3),
duration=1.0,
storage_type='gcs',
initial_raw_bytes=0,
)
self.assertEqual(
recorded_scalars['/jax/orbax/read/worker/io/raw/gbytes'], 1.0
)
read_raw_kwargs = recorded_kwargs[
'/jax/orbax/read/worker/io/raw/gbytes'
][0]
self.assertEqual(read_raw_kwargs.get('compression_algorithm'), 'none')
self.assertEqual(read_raw_kwargs.get('compression_level'), 'None')


if __name__ == '__main__':
multiprocess_test.main()
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