writebuffer - write output to devices which don't like constant stopping and starting

writebuffer  reads data on standard input and writes it to standard output.  It will buffer internally up
       to size megabytes and will only write data when the buffer is at least 75% full or when there is no  more
       input to fill the buffer.

       size may also be suffixed with m, k, or b to indicate that it is in megabytes (2^20), kilobytes (2^10) or
       bytes.

       It  is  intended  for  use in situations where many small writes are undesirable for performance reasons,
       e.g. tape drives.

       writebuffer - write output to devices which don't like constant stopping and starting

--mlock
              Calls mlock(2) to lock the buffer into memory.

readbuffer(1), mlock(2)

chiark-backup                                      2001-10-21                                     writebuffer(1)

writebuffer [--mlock] [size]