• @[email protected]
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    fedilink
    -11 year ago

    Unless you measure your baud in dial up modem, it often can take longer to compress / transport / uncompress than just transfer directly.

    • Eager Eagle
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      English
      51 year ago

      unless you’re picking a slow compressor that’s not true at all

      Original size | 100 GB
      Compressed size | 47.8 GB (2.091 ratio)
      Transfer speed | 1 Gbps (125 MB/s)
      Original transfer time | 100 GB / 125 MB/s = 800 seconds
      Compressed transfer time | 47.8 GB / 125 MB/s = 382.4 seconds
      
      Compressor | Snappy
      Compression ratio | 2.091 ratio
      Compression speed | 565 MB/s
      Decompression speed | 1950 MB/s
      Compression time | 100 GB / 565 MB/s = 177 seconds
      Decompression time | 47.8 GB / 1950 MB/s = 24.5 seconds
      
      Transfer time w/o compression | 800 seconds
      Transfer time with compression | 177 + 382.4 + 24.5 = 584.9 seconds