Hi Dave,
On version 3.4.7 I get:
jrf -R CONTROL
CONTROL Type J4, 28 records at size 2957, Downsizing skipped from
modulo 101 to 31.
jrf -Rv CONTROL
CONTROL Type J4, 28 records at size 2957, Downsizing skipped from
modulo 101 to 31.
File skipped
-------------------------------------------------------------------------------
===============================================================================
*A9999 doesn't take into account the ID length or overhead. I use
an MD I-descriptor so it can be used with any file. An MD
I-descriptor can be made functional by creating it in DICT MD,
ICOMPing it, then copying it to the DATA portion of MD.
MD SIZE
001: I Size of item, ID and overhead in bytes
002: LEN(@ID) + LEN(@RECORD) + 18
003: MD0,
004: }Bytes }************
005: 12R
006: S
007:
Regards,
Charlie Noah
On 05-25-2012 12:57 PM, David Grenfell wrote:
Thank-you Simon. I just checked my file, and from just
eye-balling it, I figure about 250 bytes per item, so I can
lower my size by about 75%.
I tried the "jrf FILENAME -R" but didn't get any report. Using
vers. 4.3.10 on xp-pro I was in the folder where the file
exists.
Dave.
Date: Fri, 25 May 2012 17:51:27 +0100
From: [email protected]
To: [email protected]
Subject: Re: jbase question or two
See inline below
On 25/05/2012 17:42, David Grenfell wrote:
Good Day to you all:
I am about to set up a new account and have a couple of
questions regarding file sizing.
1/ Is there a dict item I can use to see the size of my
items in a file ? For example.... "LIST FILENAME size"
which would show me the item ID and the size of the item.
LIST FILENAME *A9999 will work.
2/Once I have a look at the items sizes, I
assume I can do the following to create a file with the
approximate size.
For now, lets assume that there are 1000 bytes per item.
Each bucket holds 4096 bytes, so approximately 5 items per
bucket.
67000 items/5 indicates 13200 buckets
so.... CREATE-FILE FILENAME 3 13200 should do it.
Am I correct ? or is 13200 too much?
It sounds reasonable. Fill it with data and then use jrf
FILENAME to resize it.
Dave.
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