bionic (3) reporting.3.gz

NAME

       milli, micro, nano, mb, kb - the lmbench reporting subsystem

SYNOPSIS

       #include ``lmbench.h''

       void milli(char *s, uint64 n)

       void micro(char *s, uint64 n)

       void nano(char *s, uint64 n)

       void mb(uint64 bytes)

       void kb(uint64 bytes)

DESCRIPTION

       Creating benchmarks using the lmbench timing harness is easy.  Since it is so easy to measure performance
       using lmbench, it is possible to quickly answer questions that arise during system  design,  development,
       or tuning.  For example, image processing

       There  are  two attributes that are critical for performance, latency and bandwidth, and lmbench's timing
       harness makes it easy to measure and report results for both.  The measurement interface, benchmp is  the
       same,  but  the  reporting functions are different.  Latency is usually important for frequently executed
       operations, and bandwidth is usually important when moving large chunks of data.

       void milli(char *s, uint64 n)
              print out the time per operation in milli-seconds.  n is  the  number  of  operations  during  the
              timing  interval,  which  is  passed  as  a  parameter  because each loop_body can contain several
              operations.

       void micro(char *s, uint64 n)
              print the time per opertaion in micro-seconds.

       void nano(char *s, uint64 n)
              print the time per operation in nano-seconds.

       void mb(uint64 bytes)
              print the bandwidth in megabytes per second.

       void kb(uint64 bytes)
              print the bandwidth in kilobytes per second.

FUTURES

       Development of lmbench is continuing.

SEE ALSO

       lmbench(8), lmbench(3), timing(3), results(3)

AUTHOR

       Carl Staelin and Larry McVoy

       Comments, suggestions, and bug reports are always welcome.

(c)1998-2000 Larry McVoy and Carl Staelin            $Date:                                 lmbench reporting(3)