du: do not deduplicate --files0-from / operand names by name#12750
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du: do not deduplicate --files0-from / operand names by name#12750sylvestre wants to merge 1 commit into
sylvestre wants to merge 1 commit into
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GNU du deduplicates only by inode during traversal (disabled by
--count-links); it never collapses repeated operand names. uutils du
removed duplicate names from both read_files_from() and the plain
operand list, which produced two GNU-visible divergences in
tests/du/files0-from.pl:
- 'du -l --files0-from' with a file listed twice printed it once
instead of twice (-l must disable dedup).
- repeated missing files reported a single error instead of one per
occurrence (missing files have no inode to dedup on).
Drop the name-based dedup in both places and rely on the existing
inode-based dedup in the traversal loop, matching GNU. This also fixes
the plain-operand case 'du missing missing'.
Fixes tests/du/files0-from.pl.
Merging this PR will improve performance by 9.44%
|
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ⚡ | Memory | cp_recursive_deep_tree[(120, 4)] |
615.6 KB | 562.5 KB | +9.44% |
Tip
Curious why this is faster? Comment @codspeedbot explain why this is faster on this PR, or directly use the CodSpeed MCP with your agent.
Comparing sylvestre:du-gnu (0070306) with main (82ff021)
Footnotes
-
92 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩
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Fixes tests/du/files0-from.pl.