access.hash-test
Performs distribution analysis on file with test modulo.
Syntax
hash-test file.reference {itemlist} {sellist} {(options)} test modulo:modulo <return>
Description
produces a 'histogram', or graphic representation of item-id distribution within a given file, according to a 'test' modulo provided. The command is useful when performing file reallocation providing insight into how the item-ids hash into the file, as well as providing a suggested modulo.
Options
* see 'options: Access'.
s Displays summary statistics only.
Example
hash-test testfile<return>
test modulo: 3<return>
file= testfile modulo= 3 10:07:24 03 Mar 1992
frames bytes items
1 444 1 *>
1 772 2 *>>
1 1742 2 *>>
3
Hash-Test/Istat Statistics
total item count = 5 byte count = 2958
avg. bytes/item = 591.6 avg. items/group = 1.6
std. deviation = .5 avg. bytes/group = 986.0
suggested modulo = 3
This file has three groups, a total of five items. Each '>'
('hash mark') indicates an item.
See Also
Command Name
Type
Description
User Comments
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