[Improve] Use map_fn and collate_fn to manage dataset and dataloader #8
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LZHgrla merged 7 commits intoInternLM:mainfrom Jul 21, 2023
LZHgrla:lzh/data
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[Improve] Use map_fn and collate_fn to manage dataset and dataloader #8LZHgrla merged 7 commits intoInternLM:mainfrom LZHgrla:lzh/data
LZHgrla merged 7 commits intoInternLM:mainfrom
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llkn-2
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Jul 31, 2024
…nternLM#8) * use global constants * refactor dataset map_fn * refactor collate_fn * fix bugs * add mmlu collator * add default pad_token_id for tokenizer * use print_log
HIT-cwh
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Aug 5, 2024
* support llama3.1 * fix load jsonl * fix build_llm_model: set attn_implementation and torch_dtype
jayhenry
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Mar 23, 2026
…mparison
- Add generate_stress_pack_config: greedy packing with uniform [200,16000] token lengths
- Add _MockDataset: satisfies JsonlDataset interface without file I/O
- Add TestStress with 3 tests:
- test_generate_stress_pack_config: validates NPY directory output
- test_multiprocess_getitem: 8 fork'd processes with random index sampling,
reports init time, RSS/PSS deltas, and __getitem__ latency per rank
- test_mmap_memory_saving: two subprocesses compare load_config RSS/PSS/elapsed
for mmap=True (0.2MB, 0.7ms) vs mmap=False (24MB, 7.5ms)
- Updated feature_list.json: marked feature InternLM#8 as passing (8/8 complete)
Made-with: Cursor
jayhenry
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Mar 23, 2026
…mparison
- Add generate_stress_pack_config: greedy packing with uniform [200,16000] token lengths
- Add _MockDataset: satisfies JsonlDataset interface without file I/O
- Add TestStress with 3 tests:
- test_generate_stress_pack_config: validates NPY directory output
- test_multiprocess_getitem: 8 fork'd processes with random index sampling,
reports init time, RSS/PSS deltas, and __getitem__ latency per rank
- test_mmap_memory_saving: two subprocesses compare load_config RSS/PSS/elapsed
for mmap=True (0.2MB, 0.7ms) vs mmap=False (24MB, 7.5ms)
- Updated feature_list.json: marked feature InternLM#8 as passing (8/8 complete)
Made-with: Cursor
jayhenry
added a commit
to jayhenry/xtuner
that referenced
this pull request
Mar 23, 2026
…mparison
- Add generate_stress_pack_config: greedy packing with uniform [200,16000] token lengths
- Add _MockDataset: satisfies JsonlDataset interface without file I/O
- Add TestStress with 3 tests:
- test_generate_stress_pack_config: validates NPY directory output
- test_multiprocess_getitem: 8 fork'd processes with random index sampling,
reports init time, RSS/PSS deltas, and __getitem__ latency per rank
- test_mmap_memory_saving: two subprocesses compare load_config RSS/PSS/elapsed
for mmap=True (0.2MB, 0.7ms) vs mmap=False (24MB, 7.5ms)
- Updated feature_list.json: marked feature InternLM#8 as passing (8/8 complete)
Made-with: Cursor
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This PR is based on open-mmlab/mmengine#1262