bionic (8) par_ops.8.gz

NAME

       par_ops - basic CPU operation parallelism

SYNOPSIS

       par_ops [ -W <warmups> ] [ -N <repetitions> ]

DESCRIPTION

       par_ops  measures  the  available parallelism for basic CPU operations, such as integer ADD.  Results are
       reported as the average operation latency divided by the minimum average  operation  latency  across  all
       levels of parallelism.

       integer bit, add, mul, div, mod operations;
              maximum parallelism for integer XOR, ADD, MUL, DIV, MOD operations.

       uint64 bit, add, mul, div, mod operations;
              maximum parallelism for uint64 XOR, ADD, MUL, DIV, MOD operations.

       float add, mul, div operations;
              maximum parallelism for flot ADD, MUL, DIV operations.

       double add, mul, div operations;
              maximum parallelism for flot ADD, MUL, DIV operations.

BUGS

       This benchmark is highly experimental and may sometimes (frequently?)  give erroneous results.

SEE ALSO

       lmbench(8), lat_ops(8), par_mem(8).

AUTHOR

       Carl Staelin and Larry McVoy

       Comments, suggestions, and bug reports are always welcome.

(c)2000 Carl Staelin and Larry McVoy                 $Date$                                           PAR_OPS(8)