REPORTING(3) - Linux man page online | Library functions
The lmbench reporting subsystem.
Chapter
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lmbench reporting(3) LMBENCH lmbench reporting(3)
NAME
milli, micro, nano, mb, kb - the lmbench reporting subsystemSYNOPSIS
#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 mea‐ sure performance using lmbench, it is possible to quickly answer questions that arise dur‐ ing 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 mea‐ surement 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.| This manual | Reference | Other manuals |
|---|---|---|
| reporting(3) | referred by | lmbench(3) | results(3) | timing(3) |
| refer to | lmbench(3) | lmbench(8) | results(3) | timing(3) |