Need the equiv. of SYSINFO data under 4.2

[JRBRINKEMA at USC-ISI.ARPA]

I am trying to meter an applications program that runs on a
Pyramid (a sort of 4.2 UNIX ...  not vanilla 4.2; more like
tutti-frutti, but that is another subject).  I need the page
buffer statistics bread and lread (buffer reads, logical reads)
that are available from SV UNIX in the SYSINFO structure.  Any
clues as to where such information might be kept under 4.2?

  tia John Brinkema