Add JuiceFS diagnostics to small-file benchmark - #27
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📝 WalkthroughWalkthroughRight, listen up. This here PR teaches the small files storage benchmark to recognise a JuiceFS mount, take its stats before and after the graft, run a profiler if asked, and pick its poison for deletion — Python's own hand or ChangesJuiceFS Benchmark Instrumentation
Estimated code review effort: 3 (Moderate) | ~25 minutes Sequence Diagram(s)sequenceDiagram
participant LocalCLI
participant RemoteScript
participant benchmark_target
participant JuiceFS
LocalCLI->>RemoteScript: invoke with delete_mode, collect_juicefs_stats, juicefs_profile
RemoteScript->>benchmark_target: call with new parameters
benchmark_target->>JuiceFS: capture stats before write
benchmark_target->>benchmark_target: run concurrent downloads
benchmark_target->>JuiceFS: capture stats after write
benchmark_target->>JuiceFS: start profile process (optional)
benchmark_target->>JuiceFS: delete target (python or juicefs rmr)
benchmark_target->>JuiceFS: capture stats after delete
benchmark_target->>JuiceFS: stop profile process (finally)
benchmark_target-->>RemoteScript: return result payload with delete/stats/profile fields
Poem
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 3
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@benchmarks/small_files_storage.py`:
- Around line 247-252: The `subprocess.run` call in the `juicefs rmr` cleanup
path has no timeout, unlike the other benchmark commands, so a hung recursive
delete can block the run indefinitely. Update the `completed =
subprocess.run(...)` invocation in `small_files_storage.py` to pass the same
timeout pattern used elsewhere in the benchmark helpers, and keep the existing
`check=False`, `capture_output=True`, and `text=True` behavior intact.
- Around line 261-267: Treat failed or incomplete deletes as failed deletes in
the delete path handled by the benchmark helper around the juicefs rmr and
shutil.rmtree calls. Update the delete logic so a nonzero return from juicefs
rmr always raises an error, even if target_dir no longer exists, and do not
silently ignore cleanup failures from shutil.rmtree. Use the existing delete
flow in the function that returns result to surface any delete failure
consistently.
- Around line 216-225: The profiling startup path in the `juicefs profile`
launcher currently swallows `Popen` failures by returning `None`, which makes a
requested profile look like it never ran. Update the helper around
`subprocess.Popen` to surface the failure as an explicit error payload instead
of `None`, and make the caller for `--juicefs-profile` propagate that payload so
operators can tell `juicefs` diagnostic startup failed. Use the existing
profile-launch code path and symbols like `subprocess.Popen` and the
`--juicefs-profile` handling to locate and adjust the flow.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: CHILL
Plan: Pro
Run ID: 3ee859fd-6a8d-4586-827b-07e0b8fea7cd
📒 Files selected for processing (2)
.gitignorebenchmarks/small_files_storage.py
1 participant
Summary
--delete-mode juicefs-rmrto compare normal recursive cleanup with JuiceFS' optimized recursive delete path--no-juicefs-statsto disable it.firecrawl/research artifactsValidation
uv run ruff check benchmarks/small_files_storage.pyuv run python -m py_compile benchmarks/small_files_storage.pyuv run python benchmarks/small_files_storage.py --helpSummary by CodeRabbit
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