Hello !
Our development team is porting an application from VMS to DU 4.0B.
This app does heavy reads/writes on some huge COBOL indexed files,
and on VMS they obtained significant performance gains by fiddling with
some RMS specific characteristics of those files, and by selecting an
appropiate cluster size for the involved disks. We understand there are
no such things under DU (unless you buy them from a third party).
But we believe we can optimize this I/O performance by choosing the
right "record length" for the files, to read multiple records on the same
I/O
operation.. Or, since we are using HSZ50s, maybe there's some parameter
(like chunk size) that could help. Specifically, the files' record length
is
256 bytes, but soon it will grow to 311 bytes.
We're open to any suggestion (yeah, we already considered going
back to VMS ;-)
Many thanks in advance,
Miguel Fliguer
MINIPHONE S.A. - Buenos Aires, Argentina
m_fliguer_at_miniphone.com.ar
Received on Thu Sep 24 1998 - 15:29:07 NZST