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feat(loader): cap default insert workers to min(cpu, 4) #767

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Merged
XuanYang-cn merged 1 commit into from
Apr 24, 2026
+2 −2
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feat(loader): cap default insert workers to min(cpu, 4) #767

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4 changes: 2 additions & 2 deletions vectordb_bench/backend/runner/concurrent_runner.py
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ class ConcurrentInsertRunner:
normalize: Whether to L2-normalize embeddings.
filters: Filter configuration.
timeout: Timeout in seconds for the overall operation.
max_workers: Number of concurrent workers (default: cpu_count).
max_workers: Number of concurrent workers (default: min(cpu_count, 4)).
backend: Executor backend to use ('threading' or 'async').
"""

Expand All @@ -72,7 +72,7 @@ def __init__(
self.filters = filters
self.backend = backend

effective_workers = max_workers or mp.cpu_count()
effective_workers = max_workers or min(mp.cpu_count(), 4)
if not db.thread_safe:
log.info(f"DB {db.name} is not thread-safe, falling back to max_workers=1")
effective_workers = 1
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