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- Buffer reads from standard input reblocking to the given blocksize
- and writes each block to standard output.
- Internally, buffer is a pair of processes communicating via a large
- circular queue held in shared memory. This means you *must* have a
- kernel with
- options SYSVSHM
- compiled in. The reader process only has to block when the queue
- is full and the writer process when the queue is empty. Buffer is
- designed to try and keep the writer side continuously busy so that
- it can stream when writing to tape drives. When used to write tapes
- with an intervening network, buffer can result in a considerable
- increase in throughput.
- - Christian "naddy" Weisgerber
- <naddy@unix-ag.uni-kl.de>
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