CLI command for compacting recordings

[teh-cmc]

Title.

$ rerun compact --help

Compacts the contents of an .rrd or .rbl file and writes the result to a new file.

Use the usual environment variables to control the compaction thresholds: `RERUN_CHUNK_MAX_ROWS`, `RERUN_CHUNK_MAX_ROWS_IF_UNSORTED`, `RERUN_CHUNK_MAX_BYTES`.

Example: `RERUN_CHUNK_MAX_ROWS=4096 RERUN_CHUNK_MAX_BYTES=1048576 rerun compact -i input.rrd -o output.rrd`

Usage: rerun compact --input <src.rrd> --output <dst.rrd>

Options:
  -i, --input <src.rrd>


  -o, --output <dst.rrd>


  -h, --help
          Print help (see a summary with '-h')

$ rerun compact -i plot_stress_5x10_50k_2khz.rrd -o /tmp/out.rrd
[2024-07-11T10:55:09Z INFO  rerun::run] compaction started src="plot_stress_5x10_50k_2khz.rrd" src_size_bytes=261 MiB dst="/tmp/out.rrd" max_num_rows=1 024 max_num_bytes=8.0 MiB
[2024-07-11T10:55:16Z INFO  rerun::run] compaction finished src="plot_stress_5x10_50k_2khz.rrd" src_size_bytes=261 MiB dst="/tmp/out.rrd" dst_size_bytes=94.3 MiB time=7.376564451s compaction_ratio="63.895%"

• DNM: Requires Implement on-write Chunk compaction #6858

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