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From: paul@actrix.co.nz (Paul Gillingwater)
Newsgroups: comp.databases,comp.sys.hp
Subject: Performance tuning on MUMPS under HP/UX
Message-ID: <1990Mar4.041009.27532@actrix.co.nz>
Date: 4 Mar 90 04:10:09 GMT
Reply-To: paul@actrix.co.nz (Paul Gillingwater)
Organization: Actrix Public Access UNIX, Wellington, New Zealand
Lines: 16

Hi,
could someone tell me please about MUMPS.  I have been asked to do some
system performance tweaking on a MUMPS-based medical records system (no
names, no pack-drill), running under HP/UX on an HP9000/835.  It runs
very slow at times, with around 40 second response times for simple
queries.  I've tried increasing the number of semaphores and shared
memory space, but it still runs slow.  My problem is that I have
absolutely NO documentation on MUMPS.  I understand it runs as a hosted
operating system under UNIX, and may be a hierarchial database
structure, but I have no idea what sort of drain it places on system
resources, buffers, etc.  Does anyone have any experience in tuning the
kernel to improve performance with MUMPS under HP/UX? 

Thanks.
-- 
Paul Gillingwater, paul@actrix.co.nz