T.R | Title | User | Personal Name | Date | Lines |
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559.1 | Common sense | BUFFER::VICKERS | Perfect is the enemy of good | Thu Apr 23 1992 18:30 | 11 |
| I am aware of a number of sites which have ALL-IN-1 accounts which have
tens of thousands of documents in them.
Obviously, performance can be a real issue.
It will be important to perform the normal RMS file tuning procedures
including RMS/ANAL and EDIT/FDL/SCRIPT=OPTIMIZE. This must be done to
the DOCDB and DAF files.
Have fun,
don
|
559.2 | Watch number of files per directory | SHALOT::WARFORD | Richard Warford @OPA DTN 393-7495 | Sun Apr 26 1992 16:22 | 14 |
| Are these private documents or share documents (mail messages)?
If they are private be aware that a user only has 10 directories to
spead thier documents amoungst. Thus your case would result in
1000-2000 documents per directory. The directory header size could
therefore cause some performance degredation (very bad performance on
some older versions of VMS). If their shared, then you can create as
many directories as needed to keep the number of files per directory
low.
And make sure as .1 says to do normal VMS tuning on your DOCDB.DAT
and DAF.DAT (if private) files.
Rick
|
559.3 | Use multiple drawers in V3.0. | IOSG::PYE | Graham - ALL-IN-1 Sorcerer's Apprentice | Mon Apr 27 1992 10:46 | 8 |
| Rick's qute justifiable concern in .-1 could be allayed somewhat if
(with V3.0) the documents were spread over more than one drawer. Since
each drawer brings a new DOCDB, PDAF and set of ten directories.
Graham
PS One of our senior employees has 13,854 documents in his READ folder,
so the system obviously works.......
|
559.4 | Number of files in a directory | IOSG::DAVIS | Mark Davis | Mon Apr 27 1992 14:12 | 28 |
|
On the number of files in a directory I did some experiments a couple
of years ago, comparing the difference in access times and resource
usage when opening files through ALL-IN-1 in different sized
directories.
The outcome was that there was a difference in access times and
resource usage between a directory containing just a few files and one
containing 5000 files but it was so small as to be probably
imperceptible to the average user.
This is because of changes in VMS (I think about version 5.1) and
because ALL-IN-1 documents are added to directories in alphabetical
order because of the Z****** naming scheme.
Large directories are still inefficient apparently for wild card
operations.
So there is no need to worry too much about large directories (but of
course avoid them if you can).
As said before you should make sure that you tune DOCDB.DAT and DAF.DAT
using edit/fdl.
Mark
|