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bw_mem_rd - time memory read rate (with overhead)
bw_mem_rd
size
bw_mem_rd allocates the specified amount of memory, zeros
it, and then times the reading of that memory as a series of integer loads
and adds. Each four byte integer is loaded and added to accumulator.
The
size specification may end with ‘‘k’’ or ‘‘m’’ to mean kilobytes (* 1024) or megabytes
(* 1024 * 1024).
Output format is CB"%0.2f %.2f\n", megabytes, megabytes_per_second,
i.e.,
8.00 25.33
This benchmark should move approximately
the reported amount of memory.
Funding for the development
of this tool was provided by Sun Microsystems Computer Corporation.
lmbench(8)
.
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