cstream 4.0.0-1 (s390x binary) in ubuntu noble

 cstream is a general-purpose stream-handling tool like UNIX' dd,
 usually used in commandline-constructed pipes.
 It has a more traditional command line syntax,
 support for precise bandwidth limiting and reporting
 and support for FIFOs.
 Data limits and throughput rate calculation will work
 for files > 4 GB.
 .
 cstream reads from the standard input
 and writes to the standard output,
 if no filenames are given.
 It will also 'generate' or 'sink' data if desired.