1TKRZW_FILE_PERF(1) User Commands TKRZW_FILE_PERF(1)
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6 tkrzw_file_perf - manual page for tkrzw_file_perf 1.0.17
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9 tkrzw_file_perf: Performance checker of file implementations of Tkrzw
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11 Usage:
12 tkrzw_file_perf sequence [options] path
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14 : Checks writing/reading performance in sequence.
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16 tkrzw_file_perf wicked [options] path
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18 : Checks consistency with various operations.
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20 Common options:
21 --file impl : The name of a file implementation: std, mmap-para,
22 mmap-atom, pos-para, pos-atom. (default: mmap-para)
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24 --iter num : The number of iterations. (default: 10000)
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26 --size num : The size of each record. (default: 100)
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28 --threads num : The number of threads. (default: 1)
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30 --random_seed num : The random seed or nagative for real RNG. (default:
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33 --alloc_init num : The initial allocation size. (default: 1048576)
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35 --alloc_inc num : The allocation increment factor. (default: 2.0)
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37 --block_size num : The block size of the positional access file. (de‐
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40 --head_buffer num : The head buffer size of the positional access file.
41 (default: 0)
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43 --direct_io : Enables the direct I/O option of the positional access
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46 --sync_io : Enables the synchronous I/O option of the positional access
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49 --padding : Enables padding at the end of the file.
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51 --pagecache : Enables the mini page cache in the process.
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53 Options for the sequence subcommand:
54 --random : Uses random offsets rather than pre-defined ones.
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56 --append : Uses appending offsets rather than pre-defined ones.
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58 --write_only : Does only writing.
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60 --read_only : Does only reading.
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64tkrzw_file_perf 1.0.17 October 2021 TKRZW_FILE_PERF(1)