On 20 Jul 2001, Kent Polk wrote:

: > speedy# /usr/bin/time dd if=/dev/zero of=/dev/null bs=64k count=16384

: > 1073741824 bytes transferred in 1 secs (1073741824 bytes/sec)
: >         0.53 real         0.00 user         0.52 sys

: and I get:

: 1073741824 bytes transferred in 1 secs (1073741824 bytes/sec)
:         0.39 real         0.01 user         0.37 sys
:
: Why would it get exactly the same transfer rate?

Because dd only has a granularity of 1 second, and uses that when
calculating transfer rate (bytes-divided-by-seconds).  Note that the times
in "real" and "sys" are much shorter than 1sec.

-- 
-- Todd Vierling <tv@wasabisystems.com>  *  Wasabi NetBSD:  Run with it.
-- NetBSD 1.5 now available on CD-ROM  --  http://www.wasabisystems.com/