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lmbench reporting(3) LMBENCH lmbench reporting(3) 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 an- swer 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 fre- quently 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 para- meter 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... $Date: lmbench reporting(3)
NAME | SYNOPSIS | DESCRIPTION | FUTURES | SEE ALSO | AUTHOR
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