smonitor.3c (2010 09)

smonitor(3C) smonitor(3C)

LD_PROFILE=""

libgprof.so does not set up the buffers to collect sampling information. It is expected that

smonitor() will be called explicitly to collect the sampling information. So it is the ideal case to

call the smonitor() explicitly.

LD_PROFILE=ALL

libgprof.so sets up the sampling buffer for all the load modules and starts

sprofil() to col-

lect the sampling information. Now if

smonitor() is invoked explicitly,

sprofil() is stopped,

the buffer allocated by

libgprof.so

is deallocated, and all the sampling information collected

prior to calling

smonitor() is lost. smonitor()

uses the buffer passed as an argument and

starts

sprofil() again.

LD_PROFILE=ldm1:ldm2

libgprof.so sets up the sampling buffer for the load modules ldm1 and ldm2 and starts

spro-

fil() to collect the sampling information. Now if

smonitor() is invoked explicitly, spro-

fil() is stopped, the buffer allocated by

libgprof.so is deallocated, and all the sampling infor-

mation collected prior to calling

smonitor() is lost.

smonitor() uses the buffer passed as an

argument and starts

sprofil() again.

LD_PROFILE is not set, smonitor() behaves as though

LD_PROFILE=ALL.

FILES

/usr/lib/hpux32/libgprof.so

/usr/lib/hpux64/libgprof.so