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Man Pages


Manual Reference Pages  -  BW_MEM_RD (8)

NAME

bw_mem_rd - time memory read rate (with overhead)

CONTENTS

Synopsis
Description
Output
Memory Utilization
Acknowledgement

SYNOPSIS

bw_mem_rd size

DESCRIPTION

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

Output format is "%0.2f %.2f\n", megabytes, megabytes_per_second, i.e.,

8.00 25.33

MEMORY UTILIZATION

This benchmark should move approximately the reported amount of memory.

ACKNOWLEDGEMENT

Funding for the development of this tool was provided by Sun Microsystems Computer Corporation.

SEE ALSO

lmbench(8).
Search for    or go to Top of page |  Section 8 |  Main Index


(c)1994 Larry McVoy BW_MEM_RD (8) $Date$

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