lrt_scan(1)

lrt_scan -- analyze flow-profile results for locality of reference tuning

Synopsis

lrt_scan [-l] object log [log] . . .

Description

lrt_scan analyzes a set of flow-profile logs to determine the best order for the functions of object for locality of text reference. lrt_scan writes to the standard output a list of the functions of the object (only those that are actually used) ordered such that functions that are usually called within a short time of each other are placed within a short distance in the object.

The output of this command is used as input to fur(1).

The -l option requests that lrt_scan take as long as necessary to find the best ordering possible. This may take a very long time and is only recommended for ``overnight'' computations.

Diagnostics

lrt_scan is successful if every log is a valid flow-profile log and object is referenced in one of them.

References

cc(1), fprof(1), fur(1) ksh(1), lprof(1), prof(1)